Well I ordered the parts to over haul the blasty motor. The rod crank bearing was shot. Has any one ever seen this in a motor? Not sure how long the motor ran this way. Last time I rod it died while I came to a stop to listen to a noise that it seemed to have just started making. I cranked it over by hand slowly and could hear cluking in the motor, so we pulled it home and took a look. This is what I found.
bottom of the crank rod
the bottom of the case. ouch.
crank rod bearings?? needle bearings, none that can be seen in the bearing cage.
I'm also putting new rings in to the motor too. Compression was around 90 psi. It was a good starter even that low. Thinking this is the first rebuild on this motor, has stock piston. The wear is really low on the cylinder also. But found out I need the main crank bearing also will need to order new ones, plan on replacing both even thou one is locked up. Looks like it got rusty not sure where the water came from to make it rusty.
bottom of the crank rod
the bottom of the case. ouch.
crank rod bearings?? needle bearings, none that can be seen in the bearing cage.
I'm also putting new rings in to the motor too. Compression was around 90 psi. It was a good starter even that low. Thinking this is the first rebuild on this motor, has stock piston. The wear is really low on the cylinder also. But found out I need the main crank bearing also will need to order new ones, plan on replacing both even thou one is locked up. Looks like it got rusty not sure where the water came from to make it rusty.