Re: Top end undertaking

Posted by Hoosier Daddy on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Top-end-undertaking-tp4040220p4040237.html

 You said you were fighting carb issues... was it running lean? That is hard on engines.

TOOLS1 wrote

 Also you could take an old spark plug, and make a leakdown tester, and do that test.
TOOLS

^^ Best advise to get an idea of what is going on BEFORE you open up the engine. The Leak down test procedure means to have the cylinder on TDC of the compression stroke where everything should be sealed. Then you put a small amount of regulated air pressure into the cylinder using the adapter TOOLS mentioned in the spark plug hole.  If the air leaks out the carb it's an intake valve, out the muffler an exhaust valve, or out the dipstick / oil fill port it's rings... Helps a lot to know what to look for a head of time.