1976 2.0L D-jet, distributor vacuum Options

[Ron914]

@emerygt350
I was asked my a member helping me with my high idle /vacuum leak problem how I currently have it hooked up .This is the diagram I am using .

[emerygt350]

Hmmm... I put a new to me fan on mine when I rebuilt it and it was from a later bus type 4 and it had no marks. I marked mine by lining it up with my original and then tdc while it was in the car. You may have the same kind of thing going on. I would verify TDC and mark it yourself. Not sure if the flywheel can be 180 out. I mean anything is possible I guess.

And your mps should hold air much longer than that. It needs to withstand 17 at a minimum anyway. Holding at 10 seems odd to me but it doesn't really matter in your case.

And I am not sure if that kind of a leak means you are out of luck or not. I think I would start looking for a kit and while that is going get that timing mark figured out.

So many questions. I would get cylinder 1 at TDC using an Endo scope or a chopstick (using the tire in 5th gear technique). Verify the mark on the flywheel, and verify the position of the rotor. Then I would make a nice new mark on the fan and time the engine.

[Ron914]

Hmmm... I put a new to me fan on mine when I rebuilt it and it was from a later bus type 4 and it had no marks. I marked mine by lining it up with my original and then tdc while it was in the car. You may have the same kind of thing going on. I would verify TDC and mark it yourself. Not sure if the flywheel can be 180 out. I mean anything is possible I guess.

And your mps should hold air much longer than that. It needs to withstand 17 at a minimum anyway. Holding at 10 seems odd to me but it doesn't really matter in your case.

@emerygt350 @Superhawk996
Looks like I will need a rebuild on my MPS along with my TB ,my understanding is no one likes to do this , I could buy one from Jeff Bowlsby but he states not tuned for a 2056 .My fan has a red mark and a O after assembling the motor we noticed when starting to time it that the mark was no longer viewable ,this has been a thorn in my side every since ,my only thought was pull the motor to extend the mark . My other thought was to get my girlfriend to watch for the mark after I jack up the car again and rotate my tire while in 5th gear and maybe she will be able to see it . I wish I had a photo of the mark ,it definitely was there a redline and O . Still not sure if it was the original fan of this 1976 914 since so much could have happened before I purchased the car .
I believe @BlueLightening had the same issue and used the flywheel mark . I can call or go visit the lower end builder of my motor and try and verify that the mark he put on my
flywheel is actually TDC.
I am positive my fan only had the one mark on it though.
I am going to try and time my car tomorrow using that mark on the flywheel as BlueLightening did just help a non mechanic with a couple of questions please.
If I read correctly I need the retard from my dizzy disconnected and hold the throttle open to 3500rpm when I put the timing light on the mark on my flywheel .This might have to wait since I won't be able to do this without my girlfriend till the weekend . I am going to Air/Water tomorrow so maybe Sunday instead and I will report back .

Emery I did move my ECU setting to 6:00 position and moved my dizzy a bit until I got it to idle close to 1000rpm ,it still takes a second or two before the idle comes back down though when I run it up to 2000 so I will look at the dizzy moveable plate and clean/grease and hopefully this will help.As a side note we did use the mityvac to check that the plates moved when vac was applied when first assembling the motor.