Bent valves suck!
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Senior Member
Superstock
Joined: Dec 2004
Posts: 267
From: Houston,Tx
Bent valves suck!
Changed out my can chain tensioners this weekend and I goofed on the cam chain. It slipped and bent both rear exhaust valves when the bike cranked up. Luckily I have another set of heads in storage, so all I'm waiting on is a head gasket. The Valves luckily did'nt beat a hole in the piston before I could shut the engine down, only left some light marks on it. Next tim e I definitely will be more aware and alert than I was that night, not enough sleep and poor judgement almost put me back at square one.
Senior Member
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Joined: Oct 2006
Posts: 224
Sucks
Sorry to hear your bad news...
I know when I did mine I got annal about it but I slowed myself to try and do it right...It might help other guys if you spelled out what you did wrong..someone can learn from your pain..
Just a thought...make sure there are now sharp edges on the marks made in the pistons..dremel tool..gently smooth the edges etc..Sharp thin edges can cause heat build up...smooth is good.. don't remove a lot of material..just the roughness..
Dave
I know when I did mine I got annal about it but I slowed myself to try and do it right...It might help other guys if you spelled out what you did wrong..someone can learn from your pain..
Just a thought...make sure there are now sharp edges on the marks made in the pistons..dremel tool..gently smooth the edges etc..Sharp thin edges can cause heat build up...smooth is good.. don't remove a lot of material..just the roughness..
Dave
Thread Starter
Senior Member
Superstock
Joined: Dec 2004
Posts: 267
From: Houston,Tx
My big screw up was not getting the rear cylinder at TDC , I just went at it without checking and when I pulled the stock tensioner I assume is when the chain slid around the exhaust cam gear, although I did'nt hear it, cause there was an extreme amount of noise in the shop from the H@rley thats was being tested 5 feet from me. Put it together , started it and the valves collided with each other(intake to exhaust). Always follow the service manual, those fellas know thy're ****. So now I just have to play the waiting game til I get my head gasket. YEAH FUN!!! not.
everytime I hang out with a buddy who rides a harley something starts leaking!! this last time it was coolant and his bike don't got no stinking coolant!!
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