Question about 3.0 with 2.7 parts

[timmy2]

PDX-944
Are you Jim? Dallas shop on main?
I go to Tigard C&C fairly often.
Black '78 targa with red interior and EFI.
Sound like you are running slightly rich, but you won't know for sure without testing...

[PDX-944]

Haha jim is my good friend and resource for all the Porsche stuff. I introduced him to the shop actually. I started running it about a year before I met him.
I've probably met you. I always drive the gold 944 to c and c. Or you've seen me there interpret for my deaf friends.
I just picked this up last Friday. Had it at c and c this last Saturday. Black beat up slantnose

[E Sully]

Dennis, I was making sure that no one gets confused reading this and tries to swap distributors from SC's and earlier engines by only changing the drive gear at the base of the distributor. The case would need to be split to change the internal gear to swap distributors.
Here are some base specifications on the distributor timing for the different years, with the '77 california being the one with the biggest difference due to emmisions that year.
'76 and earlier 5' atdc with vaccum
'77 15' atdc with vacuum
'78 5' btdc with vacuum
PDX-944, you would have to set timing at idle accordingly. Using SC timing with a '77 distributor would not work. Of course maximum advance at 6000 rpm is more important.

[PDX-944]

Makes sense,
I guess this is what I get for buying a project 911 haha
Really the car overall is not all that far off. I have a growing list of things to fix but it's absolutely driveable in the meantime. Once this fuel setup is sorted it will be nice.
Isnt 77 cis supposed to be the worst? I guess this arrangement may test that theory

[timmy2]

I have seen the gold 944 and have probably talked with you.
I can probably solve your fuel pump running problem as well.
My guess is the wrong engine harness is installed, or something was missed with the air flow switch. (Brown/Black wire)

[PDX-944]

Originally Posted by timmy2

I have seen the gold 944 and have probably talked with you.
I can probably solve your fuel pump running problem as well.
My guess is the wrong engine harness is installed, or something was missed with the air flow switch. (Brown/Black wire)

I just read a post of yours from 2012 about you being an electrician and taking X days to sort wiring. I was going to comment if I left my car with you itd take weeks, the wiring is a disaster. Someone just went through and cut everything along the dash in the front. Someone later "fixed" it. It's scary. I have schematics (from Jim) and am slowly going to start working through it. I did some semitemporary fixes to connect my cig lighter and fog lights. Undoubtedly wiring is the problem for the FP. the air flow switch wasnt plugged in when I got the car and it still ran

[Flat6pac]

I think you're trying to make thing more complicated than they can be
I the dist running clockwise?
Are you on TDC correctly or are you off a tooth?
Is the plug wires firing order correct?
Have you ohmed the WUR?
The biggest jury rig of all is the lambda fuel distributor
Bruce

[timmy2]

Originally Posted by PDX-944

I just read a post of yours from 2012 about you being an electrician and taking X days to sort wiring. I was going to comment if I left my car with you itd take weeks, the wiring is a disaster. Someone just went through and cut everything along the dash in the front. Someone later "fixed" it. It's scary. I have schematics (from Jim) and am slowly going to start working through it. I did some semitemporary fixes to connect my cig lighter and fog lights. Undoubtedly wiring is the problem for the FP. the air flow switch wasnt plugged in when I got the car and it still ran

It will run with the air flow switch unplugged, no ground path to the relay terminal 85 is why it runs all the time.
Might see you and your car tomorrow at Portland C&C, there isn't one at Keizer tomorrow is there?

[PDX-944]

Bruce- the car runs great 95% of the time, so no on some of those

Dennis- c and c is every weekend up here, I assume Keizer is the same. Portland c and c is different than tigard c and c. Portland is at the airport, no good. Tigard is best!

[timmy2]

I attend the Tigard C&C at Starbucks, never been to any other in the Portland area.
I think the Keizer C&C is only once a month.

[PDX-944]

Well ill be there tomorrow, but with 944 I think.
Youre correct that microswitch is not getting 85 to ground.
Actually by hand, there is no click pulling or pushing the flapper up or down. It should click, no?

[timmy2]

No click, the circuit just makes up by touching the male post when the plate is at rest.
I'm headed up there this morning after I fuel up.
Don't tell your buddy, but it won't be at the West Salem Shell store as they are the highest price around! Usually by 5-10 cents...

[PDX-944]

Lol, I tell him that all the time!
He knows it

[timmy2]

Nice meeting you today and seeing the "frankenporsche"

You have your work cut out for you with the wiring, but at least you now know where to start looking after doing the meter tests with me today.

[PDX-944]

Yup! I appreciate the help. We're currently fitting the 17x9 and 11s I got today. 315s in the rear.. a bit excessive but got a good deal

[PDX-944]

Originally Posted by Flat6pac

I think you're trying to make thing more complicated than they can be
I the dist running clockwise?
Are you on TDC correctly or are you off a tooth?
Is the plug wires firing order correct?
Have you ohmed the WUR?
The biggest jury rig of all is the lambda fuel distributor
Bruce

Okay I want to continue this investigation.
The car runs, and pretty dang well. It was a bit lean, so we adjusted the mixture just until it started getting rich.
Now it won't idle most of the time. It will surge a few times then die.
It still sometimes idles at 2000, and can be coaxed down or will slowly drop to 1k on its own.

It's the bypassed lambda fuel distributor hopeless? 2.7 wur? 2.7 distributor?
Where should I start? There are too many factors for me to know what to do first.
I guess I'm looking to others experiences to say "hey, I've bypassed the lambda stuff, it can be tuned fine." etc

[timmy2]

Post your fuel pressures,
system, Cold, warm and running hot.

Up to full running temp when adjusting richness with a CO meter? What type of meter?
What did you set it to?
Is there a Catalytic converter installed and where did you sample the CO?
Sounds like it is running too rich now.

[PDX-944]

It turns out he doesn't have a CO meter, so to adjust it that way I'd have to use yours. Pressure gauges for cis and whatnot he does have and I have yet to do, but I suppose that's the first step, and when I do I'll post results.
No cats on this. Only exhaust leaks. Lol