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Bent valves suck!

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Old 02-27-2007, 09:42 AM
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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.
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Old 02-27-2007, 10:12 AM
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you got lucky there. Time to port and polish the new heads.
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Old 02-27-2007, 10:14 AM
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naw not yet, I"m just swapping out the rear head for now, I have another engine that I'll be doing the hipo mods to, for another SHawk.
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Old 02-27-2007, 10:19 AM
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Been there, done that...It sucks. Unfortunately I didn't have another set of heads in the garage.
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Old 02-27-2007, 10:45 AM
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Duuuuuude, that sucks!
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Old 02-27-2007, 11:24 AM
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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..

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Old 02-27-2007, 02:30 PM
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Sorry to hear it, but sounds like you are up to the task if fixing it.

The CCT are easy to screw up & the price for it a PITA.
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Old 02-27-2007, 02:43 PM
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I did mine last weekend I was very carefull to make sure I was at tdc per cyl. was this the cause of your cam chain slipping off? I followed the check valve clearence section
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Old 02-27-2007, 02:53 PM
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I'm not going to change mine any time soon for that reason. I've got 15000 miles.
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Old 02-27-2007, 02:56 PM
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I was pretty nervous to but it went relitively smooth after reading the manual 1ooo times!!!!
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Old 02-27-2007, 06:08 PM
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sorry to here that they can be tricky you just have to take for time and not drink to much beer hahaha
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Old 02-27-2007, 10:28 PM
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Bad luck mate. Always pays to turn the engine over by hand first just in case.
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Old 02-28-2007, 01:25 PM
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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.
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Old 02-28-2007, 03:20 PM
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damn harleys!! 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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