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Location:
Montrose, VIC
Registered:
May 2002
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Re: 4ac timing settings and a question power range.
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Wed, 21 August 2002 05:35
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Yeah, old 4ac can take an amazing pounding - mine used to regularly hit 8000rpm trying to pass semis going downhill (yes thats one hell of a lot for an engine with stuff all airflow), plus the number of times it got cooked (due to a series of crook radiators) was unthinkable - for about 6 months I'd drive it till the temp gauge went off the edge, drive for about another 5-10 mins, stop, fill the radiator, then repeat the process. That particular engine is now going fine in someone elses car 
As for timing, always just set the dizzy til it runs the best - loosen off the clamp, adjust it till it sounds good (open the throttle a few times, etc.), then drive it round the block. The other thing to watch out for is kick back on starting, retard it till it just stops doing that usually does the trick quite well.
Also I ran my old 4ac on LPG, so it used to put up with a hell of a lot more advance than most.
As for the flat spot, clean yer carbie!
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