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wllgmr
12-17-2009, 6:21 PM
How hot do cylinders get on unit 650's? I bought some paint that says its good up to 500 degrees. Yall think that'll do the trick? Oh yeah should I anneal the copper head gasket?

Torch
12-19-2009, 10:14 AM
How hot do cylinders get on unit 650's? I bought some paint that says its good up to 500 degrees. Yall think that'll do the trick? Oh yeah should I anneal the copper head gasket?

That should be good,
we measure the exhaust pipes temp to set the idle mixture and they are about 160 to 225 degrees.
we use Krylon low gloss black engine paint on the cylinders.

fouraceswes
12-23-2009, 2:25 PM
If you are reusing the gasket, anneal. If it is new it is not so important.

wllgmr
12-24-2009, 12:06 PM
do I head to red and then drop in water? then lightly scrape any scale that may form? thats what I read somewhere.