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crankshaft broke?
Posted: Mon Oct 19, 2015 10:12 pm
by chamisataza
i am just wondering why is my crankshaft was cut/diveded into two?right now its fixed already bought oem honda,any reason why my crankshaft broke like that when i saw it it was cut/broken into two .i have good oil supply my piston was not lean but i have to change it bcuz it was damage because of sharp particles that hit.
Re: crankshaft broke?
Posted: Mon Oct 19, 2015 11:16 pm
by motormike
It broke...because, it broke.
I don't know why.
It broke.
It might break again.
It might not.
It won't brake, because that's what brakes do, unless they're broke.
Give me a break.
I don't know... 
Re: crankshaft broke?
Posted: Tue Oct 20, 2015 8:33 pm
by Wheelman-111
Greetings:
Stock Honda cranks and the Malossi full-circle cranks can take abuse for a long time. Other brands, not so much. You didn't say what brand broke, but the stuff from Taiwan has been known to fail, even when the engine tune and oil are "good".
Re: crankshaft broke?
Posted: Tue Oct 20, 2015 9:58 pm
by johnny248
Things break. Anything can break. It happens. I would be interested in how your engine was built, and what actually was happening or happened when it broke.
Re: crankshaft broke?
Posted: Wed Oct 21, 2015 4:03 pm
by chamisataza
it was oem crankshaft of sym dd50. what is the rule of the fuel pump vacuum that connect to the nipple port near oil pump?