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View Full Version : Valve cover gasket blowing out


hareracer
02-21-2006, 04:42 PM
A buddy of mine bought a new YFZ. It keeps blowing out the valve cover gasket. Has anyone else had this problem?
Ride1Rob
02-21-2006, 04:51 PM
That's not right... are the head bolts tightened to spec?
hareracer
02-21-2006, 05:20 PM
I am assuming so. It has been in the shop twice for this reason.
racemx
02-21-2006, 05:29 PM
it might need head work
daddio
02-21-2006, 05:38 PM
mine did that when I cracked a piston.
BladeRunner
02-22-2006, 12:17 PM
Originally posted by hareracer
A buddy of mine bought a new YFZ. It keeps blowing out the valve cover gasket. Has anyone else had this problem?

Valve cover gasket or Head gasket ?? HUGE difference:huh
hareracer
02-22-2006, 01:19 PM
Originally posted by BladeRunner
Valve cover gasket or Head gasket ?? HUGE difference:huh Valve cover!
lshonda310
02-23-2006, 07:31 PM
I think the lug nuts are loose, you sure you didn't work on it like you did Phil-Billy's?:blah:
tido450
02-23-2006, 10:47 PM
maybe a valve seat issue?
PurePerformance
02-28-2006, 09:31 AM
If your talking about the VALVE COVER gasket, which is the big rubber piece with 2 half moon rings on it, Ive blown that out as well. That is under normal crank pressure if your putting around.
VIGILANTE MAN
03-01-2006, 08:54 AM
Originally posted by PurePerformance
If your talking about the VALVE COVER gasket, which is the big rubber piece with 2 half moon rings on it, Ive blown that out as well. That is under normal crank pressure if your putting around.

Were you able to determine what caused it to blow out?