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Username Post: Timing issues
Valued Contributor
Posts: 3511

Reg: 04-15-05
01-01-18 04:56 PM - Post#2719719    
    In response to malibu27

"Those guys" WHO?

Dieseling can be from a lot of things, like not enough timing to allow the carb to idle the engine down, as you have now with no vacuum advance. Getting the vacuum advance set up correctly will help lower the idle speed by closing the carb down a bit, so it doesn't Diesel the engine, no matter the engine speed.

With hotter engines, incorrect idle speeds, incorrect timing/vacuum advance, and other factors, like carbs not tuned because of the other stuff, yup, idle quality can stink pretty bad.

When you get the vacuum advance and carb dialed, 195 deg/F. will work just dandy.

NO PCV system, NOT GOOD. Most people don't get this right very much, but there are a whole lot of different PC valves, in both vacuum level, and actual air volume flow, get just one of those parameters incorrect, makes for a really unhappy camper.

What specific idle rpms, and, if automatic, in and out of gear, please.
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