1984 V65 SP 15k miles shown on odometer...
So in preparation for upgrading the heads on my bike, to a single valve spring system, I pulled the heads, cylinders and pistons yesterday.
I've posted pictures of both pistons which do show some ugly wear on the upper and lower (axis of thrust?) faces, and some damage from crap in the oil no doubt. The wrist pins look pretty bad too with concentric wear/overheating rings. The pins are a pretty close fit in the pistons, and slightly less so in the little ends. Excessive wear?
Is any of this worth saving/reusing? I know sadly, that wrist pins are as rare as hen's teeth and pistons slightly less so. I did test the compressions and got 120 L & 125 R and there were absolutely no carbon traces below the rings.
The heads show all but one valve leaking, so it was definitely time for a refresh up top!
The video shows some rock (thrust?) on the RHS con rod. Is this normal?? Tried to upload this, but to no avail. There is lateral movement (along the length of the crankshaft) which I'm not sure about. Is this because both con rods share a journal?
So in preparation for upgrading the heads on my bike, to a single valve spring system, I pulled the heads, cylinders and pistons yesterday.
I've posted pictures of both pistons which do show some ugly wear on the upper and lower (axis of thrust?) faces, and some damage from crap in the oil no doubt. The wrist pins look pretty bad too with concentric wear/overheating rings. The pins are a pretty close fit in the pistons, and slightly less so in the little ends. Excessive wear?
Is any of this worth saving/reusing? I know sadly, that wrist pins are as rare as hen's teeth and pistons slightly less so. I did test the compressions and got 120 L & 125 R and there were absolutely no carbon traces below the rings.
The heads show all but one valve leaking, so it was definitely time for a refresh up top!
The video shows some rock (thrust?) on the RHS con rod. Is this normal?? Tried to upload this, but to no avail. There is lateral movement (along the length of the crankshaft) which I'm not sure about. Is this because both con rods share a journal?