GRIZDOG

My Bug will start and run fine, if I keep my foot on the gas, but once I let go, it stalls.

 

Also, according to vw-resouce.com, my idle jet should be a 55 and the power jet should be a 65.  I looked and noticed that I had them backwards, but when I put them the way vw-resource said I should have them, then it wouldn't even turn over!  So I put them back, but It still won't idle.

 

What could be the problem?

1972 Super Beetle
Quote 0 0
68autobug

I don't believe it would make that much difference....

Your idle circuit must be blocked...

otherwise when the engine is idleing,

fuel just flows into the manifold......

this isn't happening....

You need to overhaul Your Carburetor or replace it altogether...

 

Lee Noonan     68AutoBug     AUSTRALIA

68AutoBug - helping keep air cooled Volkswagens alive in Australia & around the World -

http://community.webshots.com/user/vw68autobug
-
Quote 0 0
GRIZDOG

I just overhauled the carburetor.  What about my carb, even though it has been rebuilt, would cause me to have to replace it entirely?  The trottle shaft was not lose, so I don't believe that is the problem.  What else could it be?  I would very much prefer not replacing the carb if possible.  Carbs are expensive!

1972 Super Beetle
Quote 0 0
Cobey
If you didn't use compressed air, you might not have gotten the ick out of the idle jet.  Also chekc the idle solenoid.  Make sure it click then you apply power.  Make it click 10 times in a row to make sure.  Also, check your choke.  If it's not adjusted right, your car won't idle right until the motor warms up.
[url=http://geeks-at-large.com/ghia](0)(=|=)(0)[/url] 68 Ghia Vert - Gina
[url=http://geeks-at-large.com/edel/](O\U|U/O)[/url] 72 SB Vert Autostick - Edel
Quote 0 0
GRIZDOG

How to I test the idle solenoid?  I think I read something somewhere that said to disconnect it from the coil (at the solenoid) and then turn the key on.  Then just touch it with the plug and you should hear a click.  I did this and the only sound I hear seems to be from the tiny spark that you get from touching the connection on the solenoid.  Other than that, I don't hear anything.  Does this mean that I need to replace the solenoid?

 

Just to be sure, the solenoid is that big doohicky that protrudes from the left side of the carb toward the coil?

1972 Super Beetle
Quote 0 0
dan71

Yes, that's the idle cut-off solenoid. When you turn the ignition switch to the "on" position, it send power to it and you should hear the click very clearly. First, make sure there is power going to it. If there's no sound, it is burned and the motor will not idle. Remove it and when you ground it while it is energized, the plunger should move. Good luck!

Quote 0 0
GRIZDOG

Thank you.  I did test it and there was power, but I did not hear it click, so I guess this is the problem.  I will replace it and hopefully that will do the trick.  If there are any other possible causes or suggestions, please make your recommendations, just in case this doesn't completely fix the problem.

 

Thanks for the help!

1972 Super Beetle
Quote 0 0
Cobey
How did you test it?  Pull the wire and put it back on, with the ignition in the "On" position?


[url=http://geeks-at-large.com/ghia](0)(=|=)(0)[/url] 68 Ghia Vert - Gina
[url=http://geeks-at-large.com/edel/](O\U|U/O)[/url] 72 SB Vert Autostick - Edel
Quote 0 0
GRIZDOG

That is how I tested it.

 

I have since replaced the idle solenoid and the car idles quite nicely now.  That seems to have completely fixed the problem!  Thanks for all your suggestions!

 

Now I think all I have to do is the fine tuning to the idle mixture and bypass screws, plus a little maintainence to the rear brakes (they are sticking a bit and the wheels are making noise - it's been a while since it was last on the road) and I figure I will be driving it to work no Monday.  I hope!

 

Thanks again!

1972 Super Beetle
Quote 0 0
Cobey
Good deal!
[url=http://geeks-at-large.com/ghia](0)(=|=)(0)[/url] 68 Ghia Vert - Gina
[url=http://geeks-at-large.com/edel/](O\U|U/O)[/url] 72 SB Vert Autostick - Edel
Quote 0 0