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I'm looking at having to replace a cracked crankcase & need a little advice.....
I'm looking at a '01 Deuce that was low-sided @ 1000 miles. The left-side control bracket caught on something when it went down, which twisted the left-side downtube slightly. That twist impact also cracked the forward mounting ear (where the bolt goes through the frame/motor) on the crankcase. It's a hairline crack at the top of the mounting ear, starting from the frame-side edge and extending approx 3/4".
Engine-wise, it looks like the damage has been contained to the left-side case. There is no external oil seepage or holes into the internals... just at the top, left edge of the ear. So it basically munged up the outside of the case, plus the outer primary and foot controls, without damaging any internals.
My question is two-fold ....
first, how much work is it to R&R the crankcase & do I need to replace the entire block, or just the damaged half? I'm not familiar with the TC-B motor.
Second, the frame was slightly tweaked down where the foot control mounting bracket bolts on. There is a barely noticable bend in the left downtube ... and say barely after sighting it with a straightedge. Other than this downtube, the frame is intact.... steering head, swingarm, suspension, etc are all fine. How much is too much bend in a downtube for it to be straightened. Or am I looking at a new frame too?
Thanks for any thoughts on this ....
Jeffery S.
I'm looking at a '01 Deuce that was low-sided @ 1000 miles. The left-side control bracket caught on something when it went down, which twisted the left-side downtube slightly. That twist impact also cracked the forward mounting ear (where the bolt goes through the frame/motor) on the crankcase. It's a hairline crack at the top of the mounting ear, starting from the frame-side edge and extending approx 3/4".
Engine-wise, it looks like the damage has been contained to the left-side case. There is no external oil seepage or holes into the internals... just at the top, left edge of the ear. So it basically munged up the outside of the case, plus the outer primary and foot controls, without damaging any internals.
My question is two-fold ....
first, how much work is it to R&R the crankcase & do I need to replace the entire block, or just the damaged half? I'm not familiar with the TC-B motor.
Second, the frame was slightly tweaked down where the foot control mounting bracket bolts on. There is a barely noticable bend in the left downtube ... and say barely after sighting it with a straightedge. Other than this downtube, the frame is intact.... steering head, swingarm, suspension, etc are all fine. How much is too much bend in a downtube for it to be straightened. Or am I looking at a new frame too?
Thanks for any thoughts on this ....
Jeffery S.