Joined
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110 Posts
Check out pics - and check/change your oil regularly me thinks!!!
Motor stripped and offender located - big end shells! This is actually the two shell halves - they have lapped over and squeezed material out between the rods. This caused side thrust against the crank bearing thrust washer which is blued through the heat generated before binding up!:banghead The crank itself it heavily scored, as are the rods. All to be replaced (thankfully, Fiche-man has helped me out greatly on tech info and parts:hail )
Odd thing? The rest of the motor is in remarkably good condition (32K), the cams, chains, guides, barrels, pistons, bearings are all like new (literally)? There is no indication whatsoever of a problem otherwise:confused
It begs the question why this big end gave way?:O Mech thinks maybe oil stavation, too many wheelies??
Motor stripped and offender located - big end shells! This is actually the two shell halves - they have lapped over and squeezed material out between the rods. This caused side thrust against the crank bearing thrust washer which is blued through the heat generated before binding up!:banghead The crank itself it heavily scored, as are the rods. All to be replaced (thankfully, Fiche-man has helped me out greatly on tech info and parts:hail )
Odd thing? The rest of the motor is in remarkably good condition (32K), the cams, chains, guides, barrels, pistons, bearings are all like new (literally)? There is no indication whatsoever of a problem otherwise:confused
It begs the question why this big end gave way?:O Mech thinks maybe oil stavation, too many wheelies??