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Broken camshaft
Posted: Mon Oct 19, 2015 2:24 am
by Bchaney
Hi, I've been working on getting a super dexta back running that I bought. The pistons were stuck,but we got them lose. Now I see that the camshaft is broke in half. Both sides seem to move freely. Does anyone know what would cause the cam to snap in half?
Re: Broken camshaft
Posted: Mon Oct 19, 2015 5:02 pm
by Brian
One possibility is timing or valve stuck open and has been hit with the piston. Another is a faulty cam shaft casting.
Re: Broken camshaft
Posted: Tue Oct 20, 2015 8:29 am
by russelm
Every case of a broken cam shaft I have seen (various engine types) has been due to an oil feed failure to a camshaft bearing.
Easy enough to check on a Dexta given its external oil feed pipe work.