Timing vs overheating
 

If timing is a contributor to overheating, does it need more advance or less…?

Re: Timing vs overheating
 

I believe you want to retard it (less advance) to cool it down but hopefully someone will confirm because I have the same question. So, bump!

Re: Timing vs overheating
 

Typically retarded timing is a contributor to excess heating. Advancing ignition timing to proper spec or in some cases slightly more can help. However, it's more often cooling system related, and in most cases the radiator.

Re: Timing vs overheating
 

retarded timing causes more heat.

Re: Timing vs overheating
 

Yes, retarded timing is not good. It should be checked as it is a very common cause of overheating.

Re: Timing vs overheating
 

This was described to me by an old tractor mechanic. If it's firing late, the ball of fire has a chance to expand as the piston goes down. Big fire/more heat.

Re: Timing vs overheating
 

Great way to remember this!

Re: Timing vs overheating
 

Also, late timing decreases engine speed so fuel is increased to compensate. More fuel, more heat.

Re: Timing vs overheating
 

GB's got it, retarded timing has more cylinder exposed to absorb heat

Re: Timing vs overheating
 

Thanks everyone. Clearly I was wrong!