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914World.com _ 914World Garage _ Engine Rebuild

Posted by: jfort Oct 4 2017, 09:18 AM

I doubt that there will be anything earth shattering or even beyond common knowledge, but if only to document this project, here goes:

This is a big, first time project for me, an attorney and mechanic wannabe. My factory six with a 2.5L engine was missing. Turns out there was only 75% compression in #1 and it was leaking through the inlet valve. Auto Assets in Powell OH diagnosed and my friend and mechanic, Jay Kjoller confirmed. Thankfully, Jay, an experienced air cooled engine builder and racer who lives nearby agreed to take on the project and to let me help. I got the engine out and delivered it to Jay last week.

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We started the disassembly yesterday.

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Learned some things about the engine. It has an early aluminum case with Mahle 90mm pistons and Nikasil cylinders. Pretty sure they are 2.7L. It has a later 3-ribbed oil pump, which Jay says is sufficient for what I do.

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The pistons have been lightened, which Jay said was unusual.

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We expected to see something that would explain the problem with #1. Other than some carbon accumulation on the head where the valve closes there was nothing. But, having gone this far, we decided to go from top end rebuild to a full rebuild and we split the case.

Considerations. I think the engine was built into a 2.5 in the early 70's given SCCA classes at the time, but it is just a guess. My prior owner was Jim Chambers in Oregon. He bought the car in 2001 from Werks 2 in in Burbank CA, which was started a long ago by Harry Bieker (Bieker Engineering) and continued by his son, Galen Bieker. I exchanged emails with Galen but he couldn't remember any details that would help us decide how far to go on the rebuild. But Jay said whoever built it did a good job and he can recognize the approximate build date from the materials used, e.g., paper gaskets and 3 thin copper seals at the bottom of the cylinders. What I would call the wear points, (bearings, cam lobes, valve tappets, etc.) looked to be in good shape. But I wanted to be sure.

Jays says he has had good experience with something other than the existing E cam, a Solex cam? that is a little more aggressive. So, we are going to either source that or investigate grinding the E cam.

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Friday, I will wash all the oily parts. Heads, valves, piston rods go to the machine shop, which is nearby. What can go into a hot bath tank will go there. What can be powder coated will go there. The air shroud, which is green, needs something. Not sure what to do about that.

Posted by: mepstein Oct 4 2017, 09:28 AM

Early aluminum case - score!

Posted by: Optimusglen Oct 4 2017, 09:30 AM

Are you running MFI or carbs?

I ask because I'm rebuilding a 2.2T carb motor right now and was considering trying to source a set of E cams for mine. If you're going to be regrinding anyway, would you consider a cam swap with some cash on my end? My T cams are in perfect shape.

Posted by: jfort Oct 4 2017, 09:38 AM

The engine has Weber carbs. Let me see what the plan for the carbs is. Either way at my end, perhaps we can work a deal.

Posted by: krazykonrad Oct 4 2017, 10:01 AM

popcorn[1].gif

Looks like an interesting project. Good luck with it.

Konrad (fellow attorney and mechanic wannabe)

Posted by: Perry Kiehl Oct 4 2017, 11:52 AM

There's a lot more cam options today, than there was in the early 70's.

You'll have a good time putting this together!

Posted by: Edward Blume Oct 4 2017, 12:23 PM

Some additional HP sounds like its in your future. shades.gif

Posted by: GeorgeRud Oct 4 2017, 01:21 PM

Lot's of folks used the 2.7 CIS pistons and cylinders with the 66mm crank to get 2.5 liters. Unless the pistons were changed, this combination had a very low compression ratio (7.5/1). Hopefully yours has some higher compression pistons, but might be worth checking while it's apart.

Posted by: davehg Oct 4 2017, 01:37 PM

Another attorney and wanna-be mechanic also rebuilding, this time a 2.7l. My engine guru says to use a solex cam for what will be a street car, not an auto crosser.

Posted by: Rob-O Oct 4 2017, 04:04 PM

Knew Jay way back in the late 80's. He built my engine. I bought it from a fella named Yalman Balta. I'll bet Jay would remember him.

Posted by: burton73 Oct 4 2017, 04:33 PM

I am an old friend and customer of Harry Bieker from 1978 and having Harry do the machining and balancing of my S engine back in that time, the rods where ground to weigh the same as well as the big buck balancing job. Galen and I where buddy’s and I used to ski with him. He builds a great engine. Back then in 1978 a 911 was 30 hours of labor at $30. = $900 Labor. Plus all parts and machine work and that cost a lot.

Bob B

Posted by: mepstein Oct 4 2017, 04:37 PM

I think today's number is 40 hours but that doesn't take into account the 100+ hours for disassembly, cleaning, powder coating, sourcing parts, sending parts to the machine shop, etc.

Posted by: Mark Henry Oct 4 2017, 06:46 PM

QUOTE(mepstein @ Oct 4 2017, 06:37 PM) *

I think today's number is 40 hours but that doesn't take into account the 100+ hours for disassembly, cleaning, powder coating, sourcing parts, sending parts to the machine shop, etc.

agree.gif Exactly, start adding up the total hours.

Posted by: Mark Henry Oct 4 2017, 07:01 PM

I'd consider dumping the pistons, get the cylinders plated and put in a new set of JE 9.5CR pistons. Then match the cam to engine.

This would really wake the engine up.

Posted by: gereed75 Oct 4 2017, 10:10 PM

Highly recommend the mod Solex cam (DC30). Peak power around 6200 rpm, pulls hard to 7200 and makes very gratifying torque from 2500 up. Not sure if they can be ground on E cams or not. With those, S ported heads and 9.5 JE pistons you would probably be making 200 - 210 hp.

That is a favorite combo of Henry Schmidt at
Supertech Performance. Check his build threads on Pelican. Great motor in a six !!

Posted by: jfort Oct 5 2017, 06:37 PM

Turns out I was wrong. It is a 70.4 mm crank with 2.7L pistons and cylinders. Not the short stroker I thought it was. Perhaps someone was making a 2.7RS - like engine with a milder E cam.

Posted by: Dr Evil Oct 6 2017, 09:28 AM

Hey neighbor! Cool build. I didn't know people used CIS pistons for anything but CIS as someone stated. I like Mark's recommendations.

Posted by: Mark Henry Oct 6 2017, 09:49 AM

QUOTE(jfort @ Oct 5 2017, 08:37 PM) *

Turns out I was wrong. It is a 70.4 mm crank with 2.7L pistons and cylinders. Not the short stroker I thought it was. Perhaps someone was making a 2.7RS - like engine with a milder E cam.


Trade the crank if you want a short stroke.
2.7 std/std magnifluxed crank is a easy sell on the bird.


Posted by: jfort Oct 7 2017, 05:45 PM

Jay recommends staying with the German Mahle pistons and I’ll stay with the crank we started with. Will change to the Solex cams however.

Distributor needs rebuilt. It is too sloppy. The heads, piston rods, case halves and new valve guides delivered to the machine shop. Engine tin headed to body guy for blasting and black power coating. I’ll have him weld patches for holes in tin. Also going to have him make the shroud look as good as possible in red. Powder coating alternator strap and air filter covers black. Jay is ordering bearings, fasteners, etc. can’t wait to begin putting it all together.

Posted by: Cairo94507 Oct 7 2017, 09:17 PM

Excellent project. popcorn[1].gif

Posted by: jfort Dec 6 2017, 12:44 PM

update on the build

got the engine tin and the engine shroud done, black and red, respectively and a big improvement.

after the Eric Shea/Jay Leno show, I started giving a twin spark ignition more thought. I was going to have to spend money to refurbish my OEM distributor and I was going to go to an optical trigger. more reliable, I think, but still a pain to get there being so close to the fire wall.

long story short, we are going to do a crank fire and twin spark. Jay has the jig to drill the hole. (Anyone have a suggestion as to who, east of the Mississippi can drill it?) I figure it will be reliable and easier to tune and it's what Jay has on his race car.

as for the cam, apparently there is one a little more aggressive than the Solex, an "S special" or something?, that Jay is going to look into.

can't wait to start the rebuild after the turn of the year

Posted by: Mark Henry Dec 6 2017, 01:53 PM

On the twin plug carbs with a trigger ignition here's a couple more options.

Megajolt Jr uses common Ford EDIS components that you have to source from a scrapyard. missing tooth trigger
https://wiki.autosportlabs.com/MegaJolt_Lite_Jr.

SDS has an ignition only system, more money but it's new and more complete, IIRC it uses subaru coils. hall effect trigger
http://www.sdsefi.com/cpiauto.htm


A bit spendy but this company has a missing tooth trigger wheel that come with their pulley
http://www.goingsuperfast.com/FORPORSCHE.html



There's a few more of these type of systems on the market.

Posted by: jfort Dec 6 2017, 02:51 PM

thanks, Mark!

Posted by: jd74914 Dec 6 2017, 04:13 PM

I believe you can also use Microsquirt now for 6 cylinder wasted spark control. It's a bit more expensive than Megajolt, but wouldn't require the super old EDIS components, or the specialized trigger of the SDS system. You'd just be running a few coils and basically whatever crank trigger you wanted.

A number of people on the Bird Board have been using Denso 90080-19016 COPs. They are relatively inexpensive on eBay and I believe have their own internal ignitors so you wouldn't need any coil drivers (**have to check my notes so this might not be 100% and they may need drivers**). Not the same look as the firewall mounted coils with long wires or 12 plug dizzy, but pretty clean/slick setup IMHO.

Just some more things to think about. smile.gif

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Posted by: Larmo63 Dec 6 2017, 04:52 PM

I have a 2.4 7R cased motor with Daugherty cams DC-30, we ported to 36mm and I'm using the Clewett crank-fire ignition.Attached Image

Posted by: Justinp71 Dec 6 2017, 06:29 PM

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My uncle has a 2.5L in his '70 911, I was lucky enough to drive it a few times as a teenager. Man that is an awesome motor, so much instant power on demand. Got me hooked on flat sixes with webers.

Posted by: gereed75 Dec 6 2017, 06:46 PM

Assuming mean the hole for twin plugs, I bet Craig can do the twin plug heads. CGAR over on the pelican forums. He does excellent work, easy to work with and very reasonable. He is in Wisconsin or Michigan.

As I am sure you know, these things run fine single plug up to about 9.5 CR. But if you want it you want it.

Probably not your cup of tea, but I saw a novel twin plug set up built by some guys running a 914-6 in vintage events here in Pittsburg. They run one distributor in the normal hole and a second distributor run off the E cam. Kinda cool but you gotta time two dizzy's.

It s really not hard setting the stock timing once you do it a few times.

Posted by: 914forme Dec 6 2017, 07:41 PM

I have the SDS system here, and the extra coil packs ar pretty easy. Can also do the machining if need be. Just take it into work.

BTW, If I was building a 2.7L std / std, I would go with a set of https://lnengineering.com/products/aircooled-cylinders-pistons/porsche-911-1965-77.html?p=3 if money no object. And that would get you to the 2.9L mark with better cooling and higher compression. For the cam, I have no idea as I am still debating that one, myself. shades.gif

Posted by: Mark Henry Dec 6 2017, 08:43 PM

QUOTE(jd74914 @ Dec 6 2017, 05:13 PM) *

I believe you can also use Microsquirt now for 6 cylinder wasted spark control. It's a bit more expensive than Megajolt, but wouldn't require the super old EDIS components, or the specialized trigger of the SDS system. You'd just be running a few coils and basically whatever crank trigger you wanted.


Yeh who wants to put that super old 90's EDIS tech on a car designed in the 60's.
SDS comes with the trigger sensor and on a six it's fairly easy to do.

And the Toyota COP's don't ignite by magic, guys that use them are often using MS and a missing tooth trigger setup. Or hall effect... or optical....

Posted by: jd74914 Dec 7 2017, 03:40 AM

QUOTE(Mark Henry @ Dec 6 2017, 09:43 PM) *

Yeh who wants to put that super old 90's EDIS tech on a car designed in the 60's.
SDS comes with the trigger sensor and on a six it's fairly easy to do.

And the Toyota COP's don't ignite by magic, guys that use them are often using MS and a missing tooth trigger setup. Or hall effect... or optical....

I get using EDIS 10-15 years ago, but now it seems like there are better options with more trigger flexibility since you need another controller anyways; getting rid of the EDIS module just removes part of the system if you use coils with built in ignitors.

Like I said, just trying to give some more options. Obviously you need a trigger for any non-distributor system. It's pretty economical to run COP with an MS-based system and doesn't require a specific type of trigger like SDS. You could even likely use the SDS CDI you like with a COP setup. It doesn't have internal drivers to direct fire coils (as seen by the presence of the Hurco/Bosch ignitor modules on their website), so provided SDS allows you to tune dwell, you could wire any coils you wanted to the output of the ignitor module.

Posted by: Mark Henry Dec 7 2017, 06:09 AM

Since the OP is running carbs the MS box is another controller, just like in any other ignition only system.
But a debate on this is getting into hijack territory, if you want to argue this please start a new thread.

QUOTE(jfort @ Dec 6 2017, 01:44 PM) *


after the Eric Shea/Jay Leno show, I started giving a twin spark ignition more thought. I was going to have to spend money to refurbish my OEM distributor and I was going to go to an optical trigger. more reliable, I think, but still a pain to get there being so close to the fire wall.

long story short, we are going to do a crank fire and twin spark. Jay has the jig to drill the hole. (Anyone have a suggestion as to who, east of the Mississippi can drill it?) I figure it will be reliable and easier to tune and it's what Jay has on his race car.

as for the cam, apparently there is one a little more aggressive than the Solex, an "S special" or something?, that Jay is going to look into.

can't wait to start the rebuild after the turn of the year


So now you're getting into the good ol' Slippery Slope biggrin.gif

There's absolutly no advantage in running twinplug ignition unless you are running high CR pistons. So you basically need a 10:1 to 11:1 CR

So Mahle's are likely off the table mostly due to availability, If you do find a set it will be around the same price as nickies if new.
The two other choices are JE pistons with replated stock cylinders, ballpark around $2400 or a set of nickies at $5500.

And that's not the end of it, with Nickies (IMO replated stock/JE's as well) you also need $6-700. worth of head studs, the twinplug labour to the heads and lower covers, add the cams, ignition, etc.
So you have now more than doubled (or tripled) your parts only bill.

Posted by: mepstein Dec 7 2017, 06:25 AM

QUOTE(Mark Henry @ Dec 7 2017, 07:09 AM) *

Since the OP is running carbs the MS box is another controller, just like in any other ignition only system.
But a debate on this is getting into hijack territory, if you want to argue this please start a new thread.

QUOTE(jfort @ Dec 6 2017, 01:44 PM) *


after the Eric Shea/Jay Leno show, I started giving a twin spark ignition more thought. I was going to have to spend money to refurbish my OEM distributor and I was going to go to an optical trigger. more reliable, I think, but still a pain to get there being so close to the fire wall.

long story short, we are going to do a crank fire and twin spark. Jay has the jig to drill the hole. (Anyone have a suggestion as to who, east of the Mississippi can drill it?) I figure it will be reliable and easier to tune and it's what Jay has on his race car.

as for the cam, apparently there is one a little more aggressive than the Solex, an "S special" or something?, that Jay is going to look into.

can't wait to start the rebuild after the turn of the year


So now you're getting into the good ol' Slippery Slope biggrin.gif

There's absolutly no advantage in running twinplug ignition unless you are running high CR pistons. So you basically need a 10:1 to 11:1 CR

So Mahle's are likely off the table mostly due to availability, If you do find a set it will be around the same price as nickies if new.
The two other choices are JE pistons with replated stock cylinders, ballpark around $2400 or a set of nickies at $5500.

And that's not the end of it, with Nickies (IMO replated stock/JE's as well) you also need $6-700. worth of head studs, the twinplug labour to the heads and lower covers, add the cams, ignition, etc.
So you have now more than doubled (or tripled) your parts only bill.

agree.gif Twin plug doesn't make more power in its self. Just lets you use more CR and not have to use race gas.

Posted by: JmuRiz Dec 7 2017, 09:27 AM

Another in agreement with the two above....I'm going the replated cyls with new higher CR pistons running single plug on pump gas.

Twin plug is cool looking for you'd nee more than 9.5:1 CR to make it worthwhile.

BUT those coil-on-plugs shown above are very interesting.
For now, I'm just going with my good carbs and dizzy (will check the curve to see if it's close enough to 2.7RS spec or send out for recurving) and running like that for a while. If I get flush with $ (haha) I'll do EFI and crank-fire ignition. But I figure doing changes in stages works well to not change too much at a time and feel if an upgrade is worth the $$.

Posted by: brant Dec 7 2017, 09:38 AM

I agree with the above.
no need to go to twin plug (and spend anywhere from 1k - 5k on ignition) without changing to a high compression piston.




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Posted by: 914Toy Dec 7 2017, 09:53 AM

Like Larmo, I have just installed single plug Clewett ignition on my 2.7 911 engine with Weber carbs and street cams, along with stock pistons and crank. Excellent outcome piratenanner.gif

Posted by: Mark Henry Dec 7 2017, 10:01 AM

Nice wub.gif

But I'll raise you by 3.0 happy11.gif

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Posted by: jfort Dec 7 2017, 11:01 AM

beautiful! now we're talking. almost too beautiful to put back in a car. mine should look about like that.

Posted by: Mark Henry Dec 7 2017, 11:35 AM

Brant and I are running TP dizzy's, Brant (like most) is doing it because certain race classes demand that you use a dizzy, I'm running it because a customer gave me a deal I couldn't refuse.

Don't get hung up on how beautiful the TP dizzy looks, because in a 914 you can't even see it, just a mess of snakes peeking out the top.
Like I said with TP you are going down the expensive slippery slope, you can make a very potent /6 with a single plug system at between 9 and 9.5CR. TP on it's own doesn't make a speck of HP, but it allows you up CR by at least a whole CR point, thus the HP gain of doing that.

A /6 engine is like a good recipe, there's a hundred different ingredients, but it only takes one bad ingredient to spoil the sauce.

Posted by: mepstein Dec 7 2017, 02:34 PM

Unlike a 911, you see mostly see the back of the engine in a 914.

Posted by: pete-stevers Dec 7 2017, 09:55 PM

I won't be running twin plugs in any engine builds...but I will definately will be watching this thread! happy11.gif

Posted by: jfort Jan 19 2018, 02:39 PM

Making progress. Took the heads up to Craig Barrett in Grand Rapids MI who will be drilling twin spark holes. Then, yesterday, Jay Kjoller started the rebuild with yours truly lending a hand and trying to soak up as much of his extended knowledge as I can. Turns out that the casting mark says the case was cast in June, 1966. Put new bearings on the newly machined pistons rods. Then new bearings for the crankshaft. Jay is very deliberate and meticulous. It looked like medical surgery, very clean. Loctite flange sealer then the case halves mated. All new fasteners torqued to spec in 3 phases.

When we get the heads back, we will calculate the compression ratio. May do the JE pistons as posters here have suggested, depending on what we find. Going with a modified Solex cam.

Can't wait.


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Posted by: sixnotfour Jan 19 2018, 03:14 PM

Is that a small oil pump ?? 3 rib or sandcast ? any other 4 rib would have been better..

Posted by: jfort Jan 19 2018, 03:51 PM

3-ribbed later oil pump

Posted by: 914forme Jan 19 2018, 06:15 PM

poke.gif 1966 poke.gif did I read that right blink.gif That is an early AL cases, that is like striking a gold vein in your basement. shades.gif That case is worth $$$$$ if the numbers matchup. Great case to build off of also

Posted by: davesprinkle Jan 19 2018, 08:26 PM

Love this thread. But can we please rotate the images?

Posted by: burton73 Jan 19 2018, 11:08 PM

You need some 1966 chain cases from the 69s Eng. from #41 when I bought it?

Bob B
w00t.gif

Posted by: jfort Jan 20 2018, 05:36 PM

I don’t understand the question

Posted by: jfort Jan 27 2018, 11:32 AM

Spent the second day on the rebuild yesterday. Received the heads drilled for the second spark plug from Craig Garrett. He did a great job. Now, what is the current combustion ratio and do we need to buy higher compression ratio pistons to give effect to the twin spark? We suspect we will.

Here is what the heads look like. They were cast 7/73 for a 2.4L. They don't have a bevel where the flat edge meets the dome. Also, the 12mm spark plug is shrouded and that will adversely effect its exposure to the fuel/air mixture. Also, we measured the piston to head distance by having the piston at TDC smash a piece of solder and measuring its thickness. At .041 it is too close. All of this means another trip to the machine shop.Attached Image Attached Image

Posted by: jfort Jan 27 2018, 11:54 AM

We next had to determine the swept volume and the combustion chamber volume to determine the combustion ratio.

The swept (cylindrical) volume is calculated knowing the stroke is 70.4 mm (7.04 cc) with a bore (diameter) of 90 mm, so r = 4.5 cc. Therefore = pi r squared stroke. = 3.1416 x 4.5 squared x 7.04 = 447.87 per cylinder, 2.687 total displacement. A good check to prove that the compression ratio calculation, next, will yield a reasonably accurate number.

The volume of the combustion chamber is measured empirically using a burette with a mixture of motorcycle strut oil and mineral spirits, The spark plug hole has to be at the very top for the liquid volume to be accurate

We measured (doing the procedure twice) 60.0 cc of fluid to the top of the spark plug hole, less 2.2 mL for the spark plug hole = 57.8 cc.

The compression ration, then, is v1 + v2 divided by v1 = 57.8 plus 447.87 divided by 57.8 = 8.75 combustion ratio.

Too low. JE pistons, 10.5 to 10.9, are on order and the heads are at the machine shop.

Attaching pistons, compressing rings, installing valves and valve springs, all necessary for what we did are a joy.Attached Image Attached Image Attached Image

Posted by: jfort Jan 27 2018, 12:01 PM

A post script. Getting to know Jay Kjoller is a joy too. He built his race car, including the engine, and drove it in the Daytona 24 hour race. Finished 17th overall and 4th in class as a rookie in 1981. He builds 'em and races 'em. I am very lucky to be able to watch, assist and learn.

Posted by: mb911 Jan 28 2018, 07:54 AM

QUOTE(jfort @ Jan 27 2018, 09:32 AM) *

Spent the second day on the rebuild yesterday. Received the heads drilled for the second spark plug from Craig Garrett. He did a great job. Now, what is the current combustion ratio and do we need to buy higher compression ratio pistons to give effect to the twin spark? We suspect we will.

Here is what the heads look like. They were cast 7/73 for a 2.4L. They don't have a bevel where the flat edge meets the dome. Also, the 12mm spark plug is shrouded and that will adversely effect its exposure to the fuel/air mixture. Also, we measured the piston to head distance by having the piston at TDC smash a piece of solder and measuring its thickness. At .041 it is too close. All of this means another trip to the machine shop.Attached Image Attached Image


.041 is within spec what are you machining?

Posted by: gereed75 Jan 28 2018, 09:12 AM

What exactly are you measuring using the solder method? It seems to be head to piston clearance (that is usually what the solder method is used for). On one hand, you said it was too close, on the other you said compression was too low. These are contradictory.

Not trying to nit pick. Not questioning the competency of you or Jay, your builder. Just trying to understand so that you don't do some unnecessary machining (I doubt Craig would let that happen).

Have you checked and set deck height? This is generally adjusted by barrel shims that also affect piston to cylinder clearance.

There is so much at play here that there is a lot of room for confusion so sorry for the butt in, just trying to be helpful.

Posted by: mb911 Jan 28 2018, 09:27 AM

QUOTE(gereed75 @ Jan 28 2018, 07:12 AM) *

What exactly are you measuring using the solder method? It seems to be head to piston clearance (that is usually what the solder method is used for). On one hand, you said it was too close, on the other you said compression was too low. These are contradictory.

Not trying to nit pick. Not questioning the competency of you or Jay, your builder. Just trying to understand so that you don't do some unnecessary machining (I doubt Craig would let that happen).

Have you checked and set deck height? This is generally adjusted by barrel shims that also affect piston to cylinder clearance.

There is so much at play here that there is a lot of room for confusion so sorry for the butt in, just trying to be helpful.

agree.gif

Deck height was what I was referring to.. Think you are in spec..

Posted by: jfort Feb 25 2018, 07:54 AM

Did volume of combustion chamber measurement with new JE. Pistons and fresh from the shop heads. 10.78:1. Happy with that. Cams back, too. Described as Solex+. To attain proper piston to head clearance we had to add a couple of copper gaskets at the bootom of the jugs. Still, after a couple of “squeeze the solder” tests, where the curved crown of the piston meets the side of the head it was too tight. So, back to the machine shop to shave a little off the curved top of the piston. What will be gain in volume by that will hopefully made up be being able to use one less copper gasket at the bottom.

Also, the new pistons and rings with my otherwise OK jugs don’t yield the right clearance. So, they are off to Wisconsin for what I would describe as a new layer of Nikosil and some machining.

Back at my end, I completed the refinishing of the bottom of the car. Clean, primer and rubber undercoating. Looks good.

Got new Hawk HPS pads and fluid. Rotors are good. Bleed the brakes hopefully next weekend.

Then off to Track First in Richfield OH where new race seats and harnesses will be installed.

Posted by: jfort Feb 25 2018, 08:05 AM

Had to add - I am continually impressed by engine builder Jay Kjoller. The level of thoroughness and attention to detail is incredible. He measures everything and compares to spec. Plus, he has done this hundreds of times so he draws upon a wealth of knowledge and experience. I guess all good mechanics are the same, but maybe not. It’s why his race car engines are so successful and he has a history of satisfied customers. It’s a joy to watch and learn.

Posted by: mepstein Feb 25 2018, 08:08 AM

I just sold a rebuilt engine with an early sand cast case for $24k. It’s definately worth rebuilding yours.

Posted by: jfort Apr 8 2018, 03:56 PM

Jugs are back from Wisconsin with new nikisol. (Siri is useless trying to spell it.). Jay confirmed again that the piston to head distance is too close. So, the new JE pistons are at a 3D lathe shop to slightly shave the curve to head distance. Getting close

Posted by: jfort Apr 11 2018, 03:16 PM

almost too pretty to put back in

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Posted by: flyer86d Apr 11 2018, 04:48 PM

That should be one snotty engine!

Charlie

Posted by: jfort May 15 2018, 11:40 AM

rebuilt carbsAttached Image

Posted by: jfort May 15 2018, 11:43 AM

JE Pistons ready. 10.8:1. had to re-shape bevel to match heads Attached Image

Posted by: jfort May 15 2018, 11:46 AM

re-nikasiled jugs to achieve correct toleranceAttached Image

Posted by: jfort May 15 2018, 11:48 AM

pistons going in and jugs on[attachmentid=650992]

Posted by: jfort May 15 2018, 11:49 AM

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Posted by: jfort May 15 2018, 11:50 AM

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Posted by: jfort May 15 2018, 11:51 AM

heads onAttached Image

Posted by: jfort May 15 2018, 11:53 AM

cam housing going on. Loctite 574 doing the sealing. better life through chemistryAttached Image

Posted by: jfort May 15 2018, 11:54 AM

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Posted by: jfort May 15 2018, 11:56 AM

measure depth of and aligning chain sprockets. new chains
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Posted by: jfort May 15 2018, 12:00 PM

the intermediate shaft has a specified "play" fore and aft, which is controlled by a shim on the outside of the case. they don't make the shims anymore, at least that we could find. had shims made in 3 different widths. added paper and loctite to achieved required tolerance

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Posted by: jfort May 15 2018, 12:02 PM

timing the cams took a lot of time. based on Dougherty Racing Cams specs. we were able to use my E cams but they were modified by Dougherty

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Posted by: jfort May 15 2018, 12:03 PM

PERFECT!!

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Posted by: jfort May 15 2018, 12:08 PM

lubed cam lobes, added chain tensioners and covers. its together.

Jay's attention to detail is phenomenal. I am very pleased and can't wait to put the rest together and then into car.

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Posted by: jkb944t May 16 2018, 05:46 AM

QUOTE(jfort @ May 15 2018, 02:08 PM) *

lubed cam lobes, added chain tensioners and covers. its together.

Jay's attention to detail is phenomenal. I am very pleased and can't wait to put the rest together and then into car.

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Wow, great progress! Should be an awesome motor.

Jeff B

Posted by: jfort May 17 2018, 08:32 AM

measuring and adjusting accelerator pump injection volume.

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Posted by: jfort May 17 2018, 08:34 AM

getting close

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Posted by: jfort May 17 2018, 08:36 AM

mating with the car starts Saturday

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Posted by: sb914 May 17 2018, 08:45 AM

Mating is the best part wub.gif looks fantastic!

Posted by: jfort May 17 2018, 06:18 PM

Anyone have any guidance as to where to mount the crank fired coils? There is not much room in the engine compartment.

Posted by: wndsrfr May 18 2018, 05:59 AM

QUOTE(jfort @ May 17 2018, 04:18 PM) *

Anyone have any guidance as to where to mount the crank fired coils? There is not much room in the engine compartment.

Here's mine, works fine...Attached Image

Posted by: Larmo63 May 18 2018, 08:28 AM

I mounted them in the trunk......Clewett system

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Posted by: jfort May 31 2018, 10:50 AM

ended up fabricating a mount for the direct ignition, on the engine, between the carburetors

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Posted by: jfort May 31 2018, 10:51 AM

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Posted by: jfort May 31 2018, 10:52 AM

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Posted by: jfort May 31 2018, 10:53 AM

had to get the custom length wires through the tin

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Posted by: jfort May 31 2018, 10:54 AM

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Posted by: jfort May 31 2018, 10:55 AM

note heat shrink on wire connections and the wire/cylinder numbers at the other ends. trying to make it fool proof for me

Posted by: jfort May 31 2018, 10:58 AM

then we checked the axles as they had come apart when I removed the engine. Luckily, all the parts were there and in good shape (I found a bearing in the drive way a couple of days after the removal.) one of the boots needs replacement which has caused a delay.

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Posted by: jfort May 31 2018, 10:59 AM

lubed up

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Posted by: Mark Henry May 31 2018, 12:50 PM

Looking good thumb3d.gif

Posted by: jfort Jun 12 2018, 09:25 AM

went in yesterday. took time to re-route oil lines to front cooler. probably another day connecting everything and tuning carbs.

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Posted by: jfort Jul 2 2018, 12:14 PM

Engine installed last week. Thought we were ready to go. Put gas in and found a leak in the tank. Got a patch brazed on and improved the fuel line routing in the trunk.

Then we found a drop of oil leaking from the intermediate shaft cover plate. Probably due to our metal shim plus paper attempt to seal it. So, out came the engine again. Since it was out, we moved the ignition table forward a couple of inches as it was too close to the rear firewall, which meant a re-fabrication of the support. That, of course, led to moving two power relays and other wiring work. Had to take off the left header to get the left axle and hub back in. I'm becoming an expert at this, which was one of the goals. Hopefully it starts tomorrow.

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Posted by: jfort Sep 7 2018, 02:27 PM

wrapping this up. I replaced Webers with PMO. l cannot extoll too much my satisfaction with PMO and Mr. PMO, Richard Parr. He called me a couple of times. He called my mechanic on a Sunday as he was concerned that we were having trouble getting the engine running right. Turns out we needed 50 idle jets, not the 55's originally included. Richard overnighted them and the car was perfect the next day. It screams and really pulls, especially in 3rd gear. It was a 9-month process but I am very happy. Now, I hope to get in some DE/track events before the bad weather arrives.

Installed. Porn. Hate covering them up with the air filters.

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