Andyrews Progress Thread, 1/16/22 A Trip to The Red Barn - Lets fab a Firewall! Options

[Andyrew]

unless your cam timing is way off, you sure this thing has not jumped a tooth or two? Might want to run a compression check just to make sure you're not chasing your tail. If you already done that, then I am out of options.

I'll give it a check. The biggest problem is the car would run perfect when running. So it makes most sense its a sensor issue. I mean the car obviously has ~ 350-400hp on only about 16lbs of boost (Its way way faster than the v8 has ever been) so for the cam timing to be that far off would be really suspect. Also its a manual tensioner and run a hair tight (new belt) so it really shouldnt jump.

But I really do appreciate all your guys thoughts (IMG:style_emoticons/default/smile.gif)

[Chris914n6]

If you have fuel and spark then all that is left is air... the ecu isn't seeing it via MAF or PS or whatever yours is.

[Andyrew]

I was running my mafless tune (my most street able tune) so it basically has a map sensor for monitoring boost pressure and wideband 02 sensor. It actually works really really well.

I have a (very expensive) blow through MAF and a tune for it but that particular tuner never got it right before I had my issue that has put me down for the count.... It's apparently very difficult to tune with but once setup it's amazing. I have noticed more torque with this tune. Not sure it's a better AFR or the tuner just threw some bottom end timing at the setup.

I can log my MAF readings to see what we're looking at. Also I could check my 02 readings.

[Amenson]

At this point it sound like you did all of the obvious trouble shooting. Next step should be to check the cam/crank sensors at the ecu with an oscilloscope.

[Andyrew]

I FIXED IT!


Ugh.

I have successfully hot started the car. 5 times in a row full warm with no issues.


My course of action.

1. New gas.
2. New cam sensor
3. New crank sensor.


What fixed it? I don't know. I did one at a time and none of them did it. So I was looking around for new options and noticed I forgot to ground the ECU/engine harness. Ugh. Ground the harness and it fires right up.


So I'm going to swap the cam sensor back and if it doesn't start I'll know that's the issue. I never tried that option as I never got the codes for it.


Ran the engine for about 5 minutes without the water pump on so it got to temp faster, but at least one of the lifters didn't pump up so I'll need to get some miles on it or pull the valve cover and hit the lifter a couple times. Worse case pull the cams and clean out the lifters.



With the engine back in operational condition I pulled the dash harness out and began the final clean up on that. I pulled all the fused power wires that were not used, ran appropriate lengths of wire and cleaned it up for future use. I'll run things like the stereo, heater, lighting, ect off these wires.

I'll finish that up in the next couple nights and focus back on my laundry list of items to tackle.

[tygaboy]

Woot, Woot! Hopefully, you're all done with this phase of the work. You deserve lots of credit for your "sticktoitism"!
The bad news is that you're first on my list to call when I start in on my wiring!

Big CONGRATS to you, Andrew! Way to keep after it. (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/cheer.gif)

[76-914]

Freaking great news. When I saw your post this AM I thought to myself, "Man, I hope he gets to the problem soon". Looks like you did. I expect we'll see you at WCR this year young man. (IMG:style_emoticons/default/beerchug.gif) OH, BTW. CONGRATULATIONS! (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/piratenanner.gif)

[dan10101]

I FIXED IT!

(IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/aktion035.gif)

So Cool!

[Andyrew]

Spent a bit more time on the wiring, getting everything in place.

Video on that and my ADD explanation at 1am...


https://www.youtube.com/watch?v=LA80L7vFC8k


I picked up the following spares and parts.

Fuel pump $35
Clutch disk $60
Fuel filter and spare element $80
Shift cables $60
Transmission $200


Transmission was a great find. 30k mile trans that had been sitting forever and just had one rear bolt tab broken. I'm using that bolt for an exhaust mount on I'll JB weld and drill and tap it.

I spent some time last night tearing the axle flanges off (Trans Code EHV has 108mm stub axles.... I use 100mm.) And then pulled the diff cover and removed the diff. I couldn't get the dowl pin out with my tools so I have some punches on the way. I have a friction type LSD to go in and will need to machine my spider gears like Mike Bellis did but it's a great while I'm in there project....

I'm replacing the trans as my car won't shift for beans. I thought it was the clutch but after readjustment it doesnt seem that way, I'm going to rebuild the pedal cluster and but some new brass bushings in as it has a bit of slop and maybe that will help as well.


Progress is moving nicely (IMG:style_emoticons/default/smile.gif)

[Andyrew]

Woot, Woot! Hopefully, you're all done with this phase of the work. You deserve lots of credit for your "sticktoitism"!
The bad news is that you're first on my list to call when I start in on my wiring!

Big CONGRATS to you, Andrew! Way to keep after it. (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/cheer.gif)

I'll hand over all my wiring tools/supplies to you as I have buttloads of stuff now and hopefully wont be needing it.

Whatever you dont use just give back (IMG:style_emoticons/default/smile.gif)

I'll bring it with me when we finishing up the cage (Any dates in the coming months work better than others?).

[dan10101]

Transmission was a great find. 30k mile trans that had been sitting forever and just had one rear bolt tab broken. I'm using that bolt for an exhaust mount on I'll JB weld and drill and tap it.

Don't forget I'm going to bring down that spool gun. I'll bring some scrap aluminum too if you want to practice.

Oh, I think you meant to reply to Chris in your last post. But we are all happy that your making such great progress.

[Andyrew]

Thanks for catching that. I edited it for clarity (IMG:style_emoticons/default/smile.gif)

[tygaboy]

Woot, Woot! Hopefully, you're all done with this phase of the work. You deserve lots of credit for your "sticktoitism"!
The bad news is that you're first on my list to call when I start in on my wiring!

Big CONGRATS to you, Andrew! Way to keep after it. (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/cheer.gif)

I'll hand over all my wiring tools/supplies to you as I have buttloads of stuff now and hopefully wont be needing it.

Whatever you dont use just give back (IMG:style_emoticons/default/smile.gif)

I'll bring it with me when we finishing up the cage (Any dates in the coming months work better than others?).

Being retired (don't hate me!), I can pretty much make anything work. Let me know when you're thinking is good for you and we'll get something on calendar.
Talk soon.

[Andyrew]

Some progress.

Took apart the new EHV trans to remove the flanges and the diff. Added the LSD that I had been saving for a while for this trans after learning the hard way that a roll pin goes in/out only one way.


I still need to remove the 100mm flanges from the trans on the car. I'll do that when I swap the trans and put fluid in the new one.


Also I checked the gearing on the new trans. First is slightly shorter and third is shorter as well which is good. Should make 3rd gear a bit more usable instead of just a "throw me to jail officer" gear.


I finished the rebuild on the pedal cluster which just entailed replacing the outer two bushings on the clutch and bending the spring for the clutch. The OE clutch spring springs it the wrong way for what I needed.

https://www.youtube.com/watch?v=ze3HdJ-h7D4


I determined why my clutch didn't do anything for the first 1/8 of pedal movement, the spot where the roll pin goes in the clutch shaft was ovaled. So after fussing with it I decided to just fix it right (IMG:style_emoticons/default/tongue.gif) now has perfect operation and zero slop.


Combine this with a little more adjustment and the spring and it feels like I have another 1/4 throw of the clutch. This might fix my shifting problem all by itself. I'll try it before I throw in the new trans so I know if the old one is a good spare or not.
Actually really excited to finally have a 914 that shifts well... Never ever have had that.


I plumbed in the new fuel filter in the old location just so I can do some driving around. Fiddled with some other stuff as well. Very close to testing it on the road and going through my long checklist and getting back to interior and suspension/brakes.

(IMG:style_emoticons/default/driving.gif)

[76-914]

You shouldn't need that return spring with the hydraulic setup. (IMG:style_emoticons/default/popcorn[1].gif) (IMG:style_emoticons/default/icon_bump.gif)

[Andyrew]

You shouldn't need that return spring with the hydraulic setup. (IMG:style_emoticons/default/popcorn[1].gif) (IMG:style_emoticons/default/icon_bump.gif)

I would have thought the same thing, but its not true. The master cyl doesnt push on the clutch enough, again probably my shifting issue and I possibly could have adjusted it differently but I tested the full travel of the hydraulic slave and master prior to building my pedal system.

I'll give it a test drive this weekend and we'll find out for sure.

Regardless if this was my shifting issue or not, I like the gear ratios of the new trans better and it gives me a spare for when I start turning up the boost to blow trans levels.

[Andyrew]

Hot start issue is back. (IMG:style_emoticons/default/dry.gif)

I have a workaround for the future. The car starts every 2-3 times if the throttle is held wide open. Vs starting every 20-30 times. So I'm Ok with that for WCR.

Test drive with more clutch throw was good in all gears except first which ground pretty good. I will swap new trans in before WCR.


I however have been busy... With what?


Dash.

[Andyrew]

Photo dump of dash progress.


Made with expanding foam, I'll be glassing over it. I have been running into issues with the dash warping so I need to glass the top for strength then I'll finish the front and guage area. Finally I'll work on the bottom as a separate piece. Blue tape line shows rough beltline

[Andyrew]

Also

Climate system. Video shows it best. Sorry I tend to be wordy.

I needed to mount this before I could finalize the dash to ensure fitment.


https://www.youtube.com/watch?v=MEVlfUMLAd0

[Andyrew]

I've been debating on my use of dash vents. I think I will need to fabricate some out of steel. I dont need the fins to move, but I do want something that GOES with the dash.

This pic goes over what my thoughts are for a custom vent.

Flat faced and 3 sides and a smooth contour with the dashline.

Not sure on my fin placement or quantity. Still thinking it out.

(IMG:http://www.914world.com/bbs2/uploads/post-172-1554820218_thumb.jpg)