classic motorcycle forum

Motorcycle Discussions => British Bikes => Topic started by: sTe140Ve on March 31, 2009, 10:14:10 PM

Title: T140V CRANKSHAFT TROUBLE
Post by: sTe140Ve on March 31, 2009, 10:14:10 PM

I have just discovered some fairly bad wear to the keyway on the rotor end of my crankshaft. Is it time to look for a new crankshaft or is this something that can be fixed at my local engine machine shop?

Title: Re: T140V CRANKSHAFT TROUBLE
Post by: Justin_Faithfull on March 31, 2009, 10:43:33 PM

You should be able to get this fixed, have a word with your local machine shop & show them the problem.

Title: Re: T140V CRANKSHAFT TROUBLE
Post by: Rex on April 01, 2009, 08:46:04 AM

Get a price to get a new keyway cut, but you may find it cheaper to get another crank off Ebay and sell your old one for repair.

Title: Re: T140V CRANKSHAFT TROUBLE
Post by: thunderbird on April 01, 2009, 08:45:36 PM

it may be possible unless the keyway is very badly damaged to have it enlarged slightly and then make a stepped key up to fit both the crank and rotor this is a cost effective way of salviging an otherwise good crank.