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how to replace a head gasket in a 318 onan p218

head gasket

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5 replies to this topic

#1 crazyhaymaker1 OFFLINE  

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Posted August 20, 2016 - 09:31 PM

I am confused as to where the head gasket is on this motor. what exactly do I have to remove to get at the head gasket. please if any one can send a pic or very detailed explanation it would help.



#2 Merle013 ONLINE  

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Posted August 20, 2016 - 09:57 PM

There is an Onan manual in the manuals section that might help you. If not someone with more knowledge on Onans will be along to help. Good luck.


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#3 KennyP ONLINE  

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Posted August 21, 2016 - 04:17 AM

Here is the Service Manual for these. That should help. There are 2 heads on it.


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#4 jd.rasentrac OFFLINE  

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Posted August 21, 2016 - 04:41 AM

Hello grazyhaymaker and welcome on board



#5 glgrumpy ONLINE  

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Posted August 21, 2016 - 09:39 AM

Sounds like you need to Read Up on this engine and maybe even some GT repair basic books first!  Don't loose the bolts to each piece taken off, keep those and small items in sandwich bags MARKED what they were for and go slow. Seems not a lot of teardown needed on those to get head clear to remove, problem is going to be the engine is probly turned sideways in chassis and becomes the big issue for reaching one of them. 



#6 KC9KAS ONLINE  

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Posted August 21, 2016 - 11:06 AM

:welcometogttalk:

Not trying to be a smart ass, but if you don't where the head gasket is, you shouldn't attempt to replace it yourself.







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