64 Engine Teardown

[leversole]

Lots of oil in the cylinders, occasionally starts running on one cylinder, last time on one cylinder, so much carbon around the spark plug hole I figured it was time to tear down have a look see. I put a new head gasket on about 17 years ago, that is the only motor work I believe has ever been done. I am the third owner, moto never apart as far as I can tell. I will post some of these pitures again as I have a few questions...Pics are the front cylinder

[leversole]

Rear Cylinder Pics

[leversole]

Uh-Oh! Front Cylinder Top Ring was broken!

[dukekleman]

Leversole,

Your combustion chamber, which the cylinder bore and piston assembly is a direct part of, definitely shows signs of wear as it should at its age.

Proper measurements and calculations should be taken throughout the top end. This includes rocker arms, rocker supports, valve's, guides, seat dimensions, cylinder bore X&Y through stroke travel, etc...

Duke Kleman

[BigLakeBob]

You got real lucky with that broken ring not causing severe damage.

[Rubone]

You got real lucky with that broken ring not causing severe damage.

Bob, I sent you an email yesterday.
Robbie