Wobbly idle

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Nov 15, 2009 14:37:27
rlich8

I got a little wobbly idle on my car. Hopefully I'll tackle it this week. I was planning on checking the following stuff, and wanted to see if there's anything else I should check.



In this order...

-Vac leaks (suspected to be most likely...if I drive for a minute, then stop, wobbles start after a few seconds & rpms might drop 100 or so)

-Compression

-Valve lash

-Ignition (can someone more explain the relationship between timing and fuel mixture perhaps (see below at what I'm getting at))

-Carbs (could mixture cause much of a difference, could it potentially make the engine/tranny wobble that much?)



Just did a head gasket so it's quite possible I've not tuned the car fully yet.



Thanks guys!



Nov 15, 2009 18:14:01
golf

Wobbly ==changes ,,hunts,,,varies,,rough,,occilates,,??



Nov 15, 2009 18:57:29
rlich8

Sort of just...shakes.



Tranny mounts are ok, replaced less than a year ago, not even. Engine mounts are OK too.



Nov 15, 2009 23:44:29
oily-hands

If the car was running ok (apart from the reason to change the head gasket) then unless you have changed anything else whilst doing it I would discount ignition timing as that shouldn't have changed. I would also, at this stage rule out compression.



I would check the valve lash again and the carbs.



It's dificult to be certain from what you said but it sounds as though it's a bit rich which would also rule out vac leaks.



Just my thoughts.



Nov 16, 2009 03:34:50
comart45

Weebles wobble but they don't fall down.



Nov 16, 2009 06:14:49
USAFAVIATOR

I had the same problem on my car and it was a combination of timing and carb setting/adjustment. after fresh rebuild and Jeff dizzy, SU rebuild. I used a Colortune and a Unisyn. Runs fine now.



Nov 16, 2009 07:30:35
B-racer

Its probably a combination of a lot of small things. Disconnect all the hoses and plug all the holes in the carb/intake. If that changes anything, you know you have a vacuum leak.



Nov 17, 2009 11:58:11
rlich8

Thanks guys!



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