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2008 Grizzly 700 head gasket problems

McQueen

By McQueen
in Yamaha ATV Forum

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McQueen Newbie

McQueen

Posted
Posted

Alrighty heres the deal. I have replaced two head gasket now goin on a 3rd. The second time I had the head shaved cause it was warped(what the dude said) put it all back together I rode it maybe 4 or 5 hours since and now its blow again(water in the oil). WTF Does ANYBODY have a idea on what my problem could be. I keep the rad. clean and I ride in alittle bit of mud nothing drastic

PLEASE for the love of my bank acount HELP!!!

DirtDemon Veteran

DirtDemon

Posted
Posted

Are you sure that you are using the correct amount of torque to tighten down the bolts? Are you sure you are tightening in the proper sequence? If you have done everything correctly, you may want to check the top of the cylinder to make sure it is flat too. Having to replace the first head gasket on a machine that new is odd to me. Makes me think there is some kind of manufactured flaw.

McQueen Newbie

McQueen

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I torqed them to spec. I did not know they had a sequence though. Is there a web site that has all that? I'll check the cylinder while I have it down. Thanks for the input man. Anything helps

DirtDemon Veteran

DirtDemon

Posted
Posted (edited)

I would recommend getting a repair manual or at least calling a dealer tech and finding out the order. I imagine there are only four bolts so the pattern is probably just a criss cross, but Yamaha may specify a specific starteing point for some reason. There may also be several steps as well, for example on the first time around you may torque the bolts to 25 ft/lb and gradually increase the torque over several passes untill you reach the final specified setting.

Edited by DirtDemon

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