high idle, 3000rpm idle Options

[slotty008]

Hi guys ,
I just hope that someone could help us with the idle of my '75 2.0. I have the car for almost 7 years now and idle was always a little bit too high. We have been trying to correct this but it got worse instead of better. We changed the distributor to a 123 ignition, we changed all the vacuumlines, the AAR has been cleaned out and the idle screw is completely closed.
The car starts at 1600rpm when cold and once it is warm it goes to 3000rpm and the idle stays there. The car pulls very well , a lot better better than when I just had it. (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif)

[VaccaRabite]

Go find my thread on making a home-built smoke machine and smoke testing your entire intake tract. You WILL find the source of your intake leaks that are giving you a high idle. You will need to put some cellophane (kitchen plastic wrap is what I used) between the throttle body and the boot for the air intake box or all your smoke will just go out that way. With that huge hole covered, there is nowhere for the smoke to go but out the leaks you have. With the boot covered, ANY smoke in your engine bay indicates a leak. You may need to dig to find where it is, but you have one - and it may not be something obvious like a vacuum hose.

For me it wasn't at all obvious before the test, and clear as day after. I had a worn out throttle body. I would never had found that without smoke testing. I've also seen rust holes and cracks in the plenum. Bad gaskets. All sorts of issues.

I built the smoke tester for under $40.

Here I made it easy. This is the link to the thread:
http://www.914world.com/bbs2/index.php?act...=2&t=353039

Zach