Re: Top end undertaking

Posted by Lucky 1 on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Top-end-undertaking-tp4040220p4040221.html

FIRST...

When you performed a compression check was the battery fully charged?
Were all of the spark plugs removed?
Was the throttle wide open? IF not then the air cannot go in to be compressed.

Only after you have done a compression check properly can you then think about rebuilding any part of the engine.

I have seen so many beginners make false assumptions about an engine based on a improper compression check.

" I've lost compression on cylinders 2&3"  This statement alone would make me want to redo your compression check.
ALSO: It is extremely rare for an engine to lose compression on just two cylinders .
And the middle two? Doubtful. Usually unless it is a racing engine all 4 cylinders would be low.