Tearing down the crank?

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87m6chris
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Tearing down the crank?

Post by 87m6chris »

T500 with about 30,000 miles

Am I nuts to do it myself?
I 've seen the photos of the DIY jig for splitting the crank, looks straight forward to build.
I guess the only thing that makes me hesitate is what the service manual calls
'crankshaft shake' caused by "insufficient tightness between the crank pins, center crankshaft and crank wheels, worn bearings or by stress put on the crankshaft when assembling the crankcase".
Has anyone experienced this after tearing down their own crank?
To have the crank done for me would cost $200 or so ( I have all the oil seals ready to go)and I'll pay it if I have to but I usually I like to do my own work.
Thanks,
Chris
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oldjapanesebikes
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Re: Tearing down the crank?

Post by oldjapanesebikes »

Tearing down is 'easy' - sort of. Its the putting it back together so it works and doesn't vibrate to pieces that's tricky. 8)
Ian

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Wingspan
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Re: Tearing down the crank?

Post by Wingspan »

I like doing things myself too, but this was a job I happily passed off to a pro. There's too much work, too much expense, too much to go wrong and it really isn't overly expensive to have done. It'd be one thing if you plan to do a lot of them, then the investment in tooling makes sense. For only one? No way.
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87m6chris
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Re: Tearing down the crank?

Post by 87m6chris »

Thanks guys,
Pedro, those are excellent points that I will take up with the machinist when I take it in
to have it done.
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H2RICK
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Re: Tearing down the crank?

Post by H2RICK »

if keeping the pump, fit the pins with the oil hole at the 1 o clock position otherwise you will get poor oil flow and early crank failure
Hmmmm.....I've not heard/seen this mentioned anywhere, Pedro.....EVER. Could you clarify exactly what you mean by the "1 o'clock position" ?? Pictures ??
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