80 vanagon high idle, lagging power, failed smog

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Amskeptic
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Re: 80 vanagon high idle, lagging power, failed smog

Post by Amskeptic » Sun Nov 23, 2014 8:40 pm

bosco53 wrote:Well apparently the wonder slug has a sense of humor. The last two mornings it has gone to its old ways of not wanting to start. It still starts quicker than it did but it takes 4-7 attempts with the pedal floored. Then more often than not if I let it sit to idle it will die if I don't mind the throttle.

So, should I just pull the cold start and see if it's leaking? Or is there another way to address my lack of air/too much fuel?

Bryan

With a warm engine, try to see if turning the mixture screw counter clockwise drops the idle due to leanness.
If so, drop it by 25 to 50 rpm. Then increase the idle speed with the big screw to 950-1,000 rpm.
Let me know if this helps . . .
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

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