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Farmall & IHC Tractors Discussion Forum
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Torque on Manifold bolts on H

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Tom Windsor

07-11-2007 18:34:04




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I am not sure of the torque values on the nuts that hold the manifold on? How tight should I do them?

tw




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Nebraska Kirk

07-11-2007 20:53:27




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 Re: Torque on Manifold bolts on H in reply to Tom Windsor, 07-11-2007 18:34:04  
55 ft/lbs.



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Bob Kerr

07-11-2007 19:50:25




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 Re: Torque on Manifold bolts on H in reply to Tom Windsor, 07-11-2007 18:34:04  
I am not sure of the spec, but this may help, I torque mine like this. Lightly oil the threads and then I run the nuts on by hand till hand tight to hold it, then with the torque wrench tighten them up a half turn at a time until it is close to spec and then a quarter turn at a time. Start in the middle and work outward each go round. Even if the manifold is slightly warped it will allow time inbetween for the iron to flex a tiny bit and allows the gasket to evenly crush down. Don't forget to retorque it after it runs a while. and it is not a bad idea to retorque it again a week or so later when cold. If you do all that it will never come loose on you in the future. ( I do the same thing on cyl heads!)

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CNKS

07-11-2007 19:19:10




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 Re: Torque on Manifold bolts on H in reply to Tom Windsor, 07-11-2007 18:34:04  
The link is a very reliable source for that type of info. See Tune-up specs. Also in service manual.



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Tom Windsor

07-11-2007 19:56:37




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 Re: Thanks for both responses 50ft/lb in reply to CNKS, 07-11-2007 19:19:10  
Thanks. Good reference.



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