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Farmall & IHC Tractors Discussion Forum
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806 Diesel Headgasket

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trw

01-27-2007 09:39:20




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We need to replace the headgasket in our 806 Diesel. It looks to be pretty simple. Anything we need to be aware of, so we don't get surprised on the job?




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jjbmn

01-27-2007 16:40:04




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 Re: 806 Diesel Headgasket in reply to trw, 01-27-2007 09:39:20  
I have a newhead gasket set here, asking $165 pluse shipping.
Jeremy



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the tractor vet

01-27-2007 20:55:40




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 Re: 806 Diesel Headgasket in reply to jjbmn, 01-27-2007 16:40:04  
Thats a bit steep for that as a total engine GSKT set does not cost that somebody hosed you.



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the tractor vet

01-27-2007 15:48:18




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 Re: 806 Diesel Headgasket in reply to trw, 01-27-2007 09:39:20  
Well some of that is true in the post below BUT when takeing a D 361 head to a machine shop FIRST THEY HAD BETTER KNOW OF JUST HOW THE VALVES ARE TO SET IN THAT HEAD as grinding the valves deeper into there seats will turn a good tractor into a hard starter and low on power . Also torquen the head down in three steps then retorquen it HOT then again after fifty hours of run time IF the valves are aready setting deep in there seats now is the time to install new seats guides and spring keeper and retainers as this cheap insurance on not having a valve drop it's keeper and putting a valve thru a piston and scrappen out and engine.Run a bottoming tap into the head bolt holes and clean out any rust carbon then clean each hole with carb cleaner - either - laquar thinner any one of the three will work then blow out each hole with compressed air chase allthe threads on the head bolts and wire brush then when installing then use some white grease on the threads and under the bolt head between the head and the washer.

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Tom43

01-27-2007 12:48:11




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 Re: 806 Diesel Headgasket in reply to trw, 01-27-2007 09:39:20  
Any time I have a head off I take it to a machine shop and have it checked for warpage and cracks. I also have the springs checked and the valves ground. This is also a great time to have the injectors checked for cracking pressure and spray patterns. I have seen many people regret not taking these extra precautions. The amount of labor is about the same and doing the job right the first time is a lot more fun than the second time.

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Tom43

01-27-2007 12:47:42




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 Re: 806 Diesel Headgasket in reply to trw, 01-27-2007 09:39:20  
Any time I have a head off I take it to a machine shop and have it checked for warpage and cracks. I also have the springs checked and the valves ground. This is also a great time to have the injectors checked for cracking pressure and spray patterns. I have seen many people regret not taking these extra precautions. The amount of labor is about the same and doing the job right the first time is a lot more fun than the second time.

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