Dave_Darling
Jan 17 2016, 11:56 AM
Your first two issues could be caused by a single thing. There might be something feeding back into the switched power circuit. I've done that by putting the wrong type of bulb into the taillights, for instance.
You don't have to drain the oil, or remove the exhaust, to replace the valve cover. There might be a little oil in the rocker box, but the "resting" level of the oil in the crankcase is below the bottom of the rocker box.
--DD
siverson
Jan 17 2016, 01:08 PM
And there will be even less oil if you jack up just one side of the car.
-Steve
DavidSweden
Jan 17 2016, 01:46 PM
Glad to hear it fired up and it looks very nice too
CatDaddy60
Jan 17 2016, 09:33 PM
Way cool on your first start up. The independent injection is something I'm looking into as well. Does the crank sensor and wheel work well? I was under the impression that the sensor had to be mounted on the outside edge of the wheel.
falcor75
Jan 18 2016, 09:49 AM
QUOTE(CatDaddy60 @ Jan 18 2016, 04:33 AM)
Way cool on your first start up. The independent injection is something I'm looking into as well. Does the crank sensor and wheel work well? I was under the impression that the sensor had to be mounted on the outside edge of the wheel.
I had no issues at all with the triggerwheel setup.
All my sensors are from Mario @ thedubshop.net Cant recommend him highly enough. Super guy to do business with if you want to go EFI. He's developing his own Megasquirt circuit board to be able to update aircooled fours to modern injection.
falcor75
Jan 18 2016, 09:52 AM
QUOTE(Dave_Darling @ Jan 17 2016, 06:56 PM)
Your first two issues could be caused by a single thing. There might be something feeding back into the switched power circuit. I've done that by putting the wrong type of bulb into the taillights, for instance.
You don't have to drain the oil, or remove the exhaust, to replace the valve cover. There might be a little oil in the rocker box, but the "resting" level of the oil in the crankcase is below the bottom of the rocker box.
--DD
I found a thread earlier today (cant find it now tho) about the alternator backfeeding current when you turn the key off, just enough to keep the power relay energized.
The engine should die if you for instance push the brake pedal and this is exactly what happens to me. Turning the key off doesnt kill the engine but then pushing the brake pedal to light up the brake lights kills the engine. Apparently putting a diode in somewhere would fix this issue.
Edit:
http://forums.pelicanparts.com/porsche-914...l-not-stop.html
veekry9
Jan 19 2016, 01:41 AM
falcor75
Jan 19 2016, 07:38 AM
QUOTE(veekry9 @ Jan 19 2016, 08:41 AM)
Tack!
falcor75
Jan 20 2016, 02:31 PM
Started tackling the oil leak today. On inspection I saw that the left valve cover was pushed upwards, probably happened when I pushed the spring in place.
I also took down the starter motor hoping to find a reason for it squealing a bit when the engine starts but I couldnt find anything. I put the starter in my vice and hooked it up to a spare battery and it runs flawlessly.
https://youtu.be/fiwULhbUrrgHere's a clip of benchtesting the starter.
https://youtu.be/h6CsDYiB2YIHere's a clip of the engine start efter putting the starter back on the car.
Any ideas on how to fix the annoying squealing noise?
falcor75
Feb 11 2016, 03:19 PM
The last few weeks has been spend fixing issues found after getting the engine to start reliably. The biggest hurdle was the throwout bearing.
Last weekend the gearbox came out and I ordered a new throwout bearing and all the associated small parts.
While waiting for the parts to arrive i cleaned up the seats. They need to be recovered eventually but for now the California patinated cracked and torn vinyl will have to do. This passenger seat is the better of the two.
I also cadded up some baseplates for the new velocity stacks and had them lasercut at work. A good friend of mine got them welded up tonight.
For my birthday earlier this week I also had a package arrive that I ordered about a month ago. Two custom front mats with the Martini Racing colours.
thieuster
Feb 11 2016, 05:36 PM
Well, what can I say... Going through all those pages with pic, I can only conclude that we share one thing: same sort of plastic storage boxes on the shelf...
Kidding aside: I think that you Martini Racing 914 is by far the nicest of the bunch. Keep those pics coming!
Menno
g60pops
Feb 11 2016, 07:24 PM
Are the Martini logo floor mats off ebay? If yes, how is the quality?
falcor75
Feb 12 2016, 12:23 AM
QUOTE(g60pops @ Feb 12 2016, 02:24 AM)
Are the Martini logo floor mats off ebay? If yes, how is the quality?
Yes they're off ebay. Quality seems ok but I'm a Little dissapointed there was no edge binding around the cutouts for the pedals. Time will tell how well they last.
falcor75
Feb 13 2016, 10:29 AM
Gearbox back up and the annoying whining noise is gone. Sweet!
raynekat
Feb 13 2016, 11:21 AM
QUOTE(falcor75 @ Feb 13 2016, 08:29 AM)
Gearbox back up and the annoying whining noise is gone. Sweet!
Well done Mats.
aircooledtechguy
Feb 15 2016, 10:02 AM
It's really coming together nice Mats. I look forard to seeing video of you driving around!!
falcor75
Feb 15 2016, 12:25 PM
Thanks Nate, its not far off now but we've gotten snow again so i'll have to wait a little bit more.
falcor75
Feb 27 2016, 01:45 PM
After being knocked out with the flu for the past week I finally got some garagetime today. Changed the oil and filter and did some other small jobs. Then I just couldnt wait any longer.... and down it came. I love how small and nible it becomes when its back on the ground. Now spring needs to hurry up and arrive up here!!
falcor75
Mar 1 2016, 11:48 AM
mark04usa
Mar 1 2016, 12:25 PM
A milestone day for the Martini Racing car!
falcor75
Mar 1 2016, 02:57 PM
QUOTE(mark04usa @ Mar 1 2016, 07:25 PM)
A milestone day for the Martini Racing car!
Thanks Mark! its sure was a huge motivational boost.
DavidSweden
Mar 1 2016, 03:35 PM
Congratulations Mats
The car looks and sounds great
falcor75
Mar 2 2016, 02:46 AM
QUOTE(DavidSweden @ Mar 1 2016, 10:35 PM)
Congratulations Mats
The car looks and sounds great
Thanks David! We'll have to do a photoshoot once the weather is a little nicer.
I had a cm of snow outside this morning as punishment for the nerve to take the car out of the garage...
CatDaddy60
Mar 2 2016, 04:18 AM
Way to go I really like the front valence on your car. It has to feel good to take it even for a short drive after so long.
Mueller
Mar 2 2016, 10:10 AM
Nice video...congrats!
LowBridge
Mar 3 2016, 09:43 AM
very nice... super job and congrats on a fantastic milestone
falcor75
Mar 4 2016, 09:21 AM
Thanks guys.
falcor75
May 9 2016, 10:27 PM
Yesterday was the big dyno day.....and it ended in failure.
https://youtu.be/3PrzYgzsMroUpp towards 5000 rpm the engine makes a bad noise and then starts puking oil from the righ hand side valve cover.
I've never driven the car that hard before I started the restoration so its all news too me. Any ideas as to what the noise could be?
I had hopes I would be starting to be able to drive my car in a week or so, feeling very deflated at the moment.
2mAn
May 10 2016, 12:14 AM
dammit! I was so excited and was just hoping the disappointment was because you didnt make as much power. Hope its nothing too troubling
veekry9
May 10 2016, 12:17 AM
Overfill?
Crankcase vent?
falcor75
May 10 2016, 01:38 PM
It wasnt overfilled, had the oil level at the top mark.
Pulled the plugs and they look ok to me.
https://www.dropbox.com/s/bu05qkitwwhod ... 0.jpg?dl=0
Cylinder 1 to the left and 4 to the right.
Did a compression test and got some varying results: 8,5/10/8/10,5.
Average value of 9,25 +/- 10% on that would give the range 8,3-10,2 so slightly outside of a 10% variation.
porschetub
May 10 2016, 02:07 PM
QUOTE(falcor75 @ May 11 2016, 07:38 AM)
It wasnt overfilled, had the oil level at the top mark.
Pulled the plugs and they look ok to me.
https://www.dropbox.com/s/bu05qkitwwhod ... 0.jpg?dl=0
Cylinder 1 to the left and 4 to the right.
Did a compression test and got some varying results: 8,5/10/8/10,5.
Average value of 9,25 +/- 10% on that would give the range 8,3-10,2 so slightly outside of a 10% variation.
Had you "run" the engine in before the dyno attempt?
falcor75
May 10 2016, 02:29 PM
QUOTE(porschetub @ May 10 2016, 10:07 PM)
QUOTE(falcor75 @ May 11 2016, 07:38 AM)
It wasnt overfilled, had the oil level at the top mark.
Pulled the plugs and they look ok to me.
https://www.dropbox.com/s/bu05qkitwwhod ... 0.jpg?dl=0
Cylinder 1 to the left and 4 to the right.
Did a compression test and got some varying results: 8,5/10/8/10,5.
Average value of 9,25 +/- 10% on that would give the range 8,3-10,2 so slightly outside of a 10% variation.
Had you "run" the engine in before the dyno attempt?
No because I havnt done anything to the engine.
Puebloswatcop
May 10 2016, 02:45 PM
It's hard to tell from the video as my speakers suck, but it almost sounds like a valve issue. I was watching your first drive video and since it was in March it looks like the emissions from the exhaust pipe was just steam and I didn't here the horrible sound. Do you still have sound after the dyno run? Not sure on these little engines (but in a V8) I would certainly consider that you may have floated a valve.
Good luck and keep us posted. Hope it isn't all that serious. I have been following your build and the car is beautiful....It would be a real shame to have to do a complete engine.
DavidSweden
May 10 2016, 03:14 PM
Sorry to hear you have engine problem, lets hope it can be easily fixed
porschetub
May 10 2016, 05:43 PM
QUOTE(falcor75 @ May 11 2016, 08:29 AM)
QUOTE(porschetub @ May 10 2016, 10:07 PM)
QUOTE(falcor75 @ May 11 2016, 07:38 AM)
It wasnt overfilled, had the oil level at the top mark.
Pulled the plugs and they look ok to me.
https://www.dropbox.com/s/bu05qkitwwhod ... 0.jpg?dl=0
Cylinder 1 to the left and 4 to the right.
Did a compression test and got some varying results: 8,5/10/8/10,5.
Average value of 9,25 +/- 10% on that would give the range 8,3-10,2 so slightly outside of a 10% variation.
Had you "run" the engine in before the dyno attempt?
No because I havnt done anything to the engine.
Sorry assumed you had overhauled it,backtracking I found this wasn't so.
Puebloswatcop made a good point on valve float,hell it could be a broken or weak valve spring,did the noise sound like a clatter and did it subside after the RPM dropped?.
Hope you find a relatively easy solution.
falcor75
May 10 2016, 10:25 PM
QUOTE(porschetub @ May 11 2016, 01:43 AM)
QUOTE(falcor75 @ May 11 2016, 08:29 AM)
QUOTE(porschetub @ May 10 2016, 10:07 PM)
QUOTE(falcor75 @ May 11 2016, 07:38 AM)
It wasnt overfilled, had the oil level at the top mark.
Pulled the plugs and they look ok to me.
https://www.dropbox.com/s/bu05qkitwwhod ... 0.jpg?dl=0
Cylinder 1 to the left and 4 to the right.
Did a compression test and got some varying results: 8,5/10/8/10,5.
Average value of 9,25 +/- 10% on that would give the range 8,3-10,2 so slightly outside of a 10% variation.
Had you "run" the engine in before the dyno attempt?
No because I havnt done anything to the engine.
Sorry assumed you had overhauled it,backtracking I found this wasn't so.
Puebloswatcop made a good point on valve float,hell it could be a broken or weak valve spring,did the noise sound like a clatter and did it subside after the RPM dropped?.
Hope you find a relatively easy solution.
Yes the noise did go away again when the rpms went down. My driveway is uphill so I had to start the car up to get it back inside when I got home from the dyno and it started up as normal with no unusual sounds.
Puebloswatcop
May 11 2016, 07:06 AM
You may have a weak valve spring which at high RPM is floating a valve. I would do another compression check though and see what that comes out to. Definately don't want to drive it hard until you can track down the problem, if you drive it at all.
Have the valves been adjusted to be sure they are correct? Sorry, without being there to actually hear the sound it is making it is hard to nail down what it might be, so I am just throwing out ideas.
Good Luck
Puebloswatcop
May 16 2016, 08:25 PM
Any update on your unfortunate engine issue?
falcor75
May 16 2016, 11:22 PM
Havnt had much garagetime but I've pulled the engine tins and measured the compression again with slightly better results now that I can see what I'm doing. Going to borrow a leakdown gauge and check that too. I've checked the valve clearances and they are ok. Oil was fine, no particles of any kind in it. Changed the valve cover gaskets. Found that the shrink wrap on my spark plug temp senders had melted so I've ordered new ones with a better spec.
falcor75
May 18 2016, 10:32 AM
Well that was fun.....
Just did a leakdown test, it should be done with the engine warm but that wasnt an option at the moment.
Cylinder 1: 15% - most of the air going into the crank case
Cylinder 2: 11% - most of the air going into the crank case
Cylinder 3: 40% - most of the air passing the inlet valve
Cylinder 4: 13% - most of the air going into the crank case
Now spot the offender.....
Puebloswatcop
May 22 2016, 03:16 PM
QUOTE(falcor75 @ May 18 2016, 10:32 AM)
Well that was fun.....
Just did a leakdown test, it should be done with the engine warm but that wasnt an option at the moment.
Cylinder 1: 15% - most of the air going into the crank case
Cylinder 2: 11% - most of the air going into the crank case
Cylinder 3: 40% - most of the air passing the inlet valve
Cylinder 4: 13% - most of the air going into the crank case
Now spot the offender.....
Ouch
falcor75
May 25 2016, 12:13 AM
When one door slams shut in your face you break out the wallet and smash down a wall.....
Engine is out of the car, heads are off, cant see anything wrong with them.
So screw this....I'm going big!
r_towle
May 25 2016, 12:24 AM
Six?
Big four?
Subaru?
Chevy?
Other?
falcor75
May 25 2016, 10:57 PM
Big four.
raynekat
May 26 2016, 02:17 AM
QUOTE(falcor75 @ May 25 2016, 09:57 PM)
Big four.
It will be great Mats.
Hang in there....
falcor75
May 26 2016, 02:41 AM
Thanks Rayne...I figured that if I did a top end overhaul I'd still have a bottom end that I had no idea of the condition of. So...breaking out my spare 1.7 and sending it off to get a bit bigger. 2-3 months waiting time tho so this summer is sadly quite screwed.
Oh well there's Always beer...
falcor75
Jun 10 2016, 04:19 AM
Click to view attachment Oh yeah, one of these will go into my Engine...probably the right hand one
(Photo Jacob Spring @ GBOT)
76-914
Jun 10 2016, 06:14 PM
Sorry about the leak down results, Matt. 40% is huge. I'm surprised it didn't reveal itself once the heads were off. Was the head making good contact with that jug? Even if you dropped a ring or spaced them wrong I wouldn't expect 40% leak down! Regardless, good luck with your new build and do let us know what you find wrong with the old one.
Kent
falcor75
Jul 10 2016, 11:57 AM
Click to view attachment Well while the engine is still being built my mate Pontus and I decided to tackle the paint.
First polish and wax since it was painted about 18 months ago. What a difference it made! The downside of the polishing is that all the imperfections in the paint are much easier to spot and there are a few....
First pass was made using a fine medium-fine pad and a coarse compound, seconds pass using a fine pad and fine compund. All of the Rupes brand including the machine. Good stuff!
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