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Discussion Forum

Re: Advisable to re-torque head?

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Red Dave

02-08-2001 08:15:38

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Has the head been off recently? If the head hasn't been disturbed, and just started leaking on it's own, after being OK for a number of years then I'm skeptical retorqueing is the answer. If however, the head was off then I'd think retorqueing after a few heat up/cool down cycles is a good idea. If you don't go over factory specs on the torque and follow the recommended tightening order it shouldn't break anything.

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02-08-2001 09:52:30

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 Re: Re: Advisable to re-torque head? in reply to Red Dave, 02-08-2001 08:15:38  
FWIW I retorqued the heads on my IH 6.9 diesel after 105,000 miles. I added 10 lbs to the specified torque prior to adding a Hypermax turbo.

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02-08-2001 10:49:39

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 Re: Re: Re: Advisable to re-torque head? in reply to Wardner, 02-08-2001 09:52:30  
I forgot to mention that I also retorqued the head on a newly purchased 400. There were no leaks but the headbolts were loose. The engine has never been apart but the headbolts all needed about 1/2 turn.

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David A

02-08-2001 08:26:34

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 Re: Re: Advisable to re-torque head? in reply to Red Dave, 02-08-2001 08:15:38  
Red Dave and F14,
The head has not been off for at least 35 years. I bought this tractor last Nov. It's been seeping for awhile from all the crude accumulated. After getting things clean I can see it's coming from the head seam and not the valve cover. Just enough to slightly dampen the seam on the manifold side, a little more on the plug side. No evidence of water in the oil or oil in the water.

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Red Dave

02-08-2001 08:37:56

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 Re: Re: Re: Advisable to re-torque head? in reply to David A, 02-08-2001 08:26:34  
David, I agree F14 on this. If that head has been on for 35 years, I'd be hesitant to get on it and start cranking. There are a few really good, experienced guys on here and I'm interested in hearing what they think too.

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