Adjusting Air / Fuel Mixture Options

[sjhenry1075]

Hey everyone, please excuse my lack of knowledge on this subject, but I have a question regarding air / fuel mixture adjustment on my 71 1.7 with stock D-jet. I posted this question on Facebook but wanted to try here as well.

Back story: my car will only idle and drive when both vacuum lines are disconnected from the distributor. When connected (I used a diagram found on 914world so I know they aren't flipped) the car barely idles when cold or warm, and it is almost undriveable; it surges, bucks, and hesitates. If I remove both vacuum lines from the distributor it idles and runs great.

From what I understand from the replies on FaceBook, this could be an air/fuel mixture issue, but how is that adjusted with for the 71? Is there a certain procedure for this?

Thanks in Advance for any assistance you can provide!

For those going to PA for the Northeast gathering, I'm looking forward to meeting you!

[914_teener]

Hey everyone, please excuse my lack of knowledge on this subject, but I have a question regarding air / fuel mixture adjustment on my 71 1.7 with stock D-jet. I posted this question on Facebook but wanted to try here as well.

Back story: my car will only idle and drive when both vacuum lines are disconnected from the distributor. When connected (I used a diagram found on 914world so I know they aren't flipped) the car barely idles when cold or warm, and it is almost undriveable; it surges, bucks, and hesitates. If I remove both vacuum lines from the distributor it idles and runs great.

From what I understand from the replies on FaceBook, this could be an air/fuel mixture issue, but how is that adjusted with for the 71? Is there a certain procedure for this?

Thanks in Advance for any assistance you can provide!

For those going to PA for the Northeast gathering, I'm looking forward to meeting you!

So assuming a few things from this post.

1. You have checked the numbers on the distributor and it is the correct one for your 71 1.7.

2. You have a dual advance/retard diaphram on the distributor correct? So one vaccum line goes to manifold vaccum and the other goes to ported vaccum on the Throttle body. Correct? You've checked each side of the diaphram with a vaccum guage tester and both sides hold vaccum?

3. You've checked Jeff Bowlsby's vaccum diagram on his web site and it confirms the components and routing for the vaccum hoses for your car and engine.

4. I'd stay off Facebook for advice for your 914 and get help here.

Check this first and report back.

[Superhawk996]

I'd stay off Facebook for advice for your 914 and get help here.

(IMG:style_emoticons/default/agree.gif)

There is so much truth in that simple one liner. (IMG:style_emoticons/default/happy11.gif)