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Restoration & Repair Tips Board

Manifold installation

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6030MATT

01-24-2008 16:32:32




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Hello

Going to be putting a new manifold on a john deere 531 engine and would like to know if there are any torque specs for the bolts. None in the technical manual. Also is it normal to install manifold gaskets dry. Any other advice much appreciated.

Thanks in advance.




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glennster

01-27-2008 14:17:12




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 Re: Manifold installation in reply to 6030MATT, 01-24-2008 16:32:32  
here is a link to torque specs for different bolt sizes

torque here



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glennster

01-27-2008 14:14:11




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 Re: Manifold installation in reply to 6030MATT, 01-24-2008 16:32:32  
if you cant find specific torque specs, there are charts available that show recommended torque specs for specific bolt diameters. be careful if its a fine thread as they generate a lot more torque and it is real easy to break one off. if its a 3/8 stud, i would snug em up with a short handle 3/8 drive rachet, give em a wee bit more and leave them. run it for a while and recheck em. as far as sealer, generally no for exhaust, however i did use an exhaust sealant on my minnie-moline, the ports on the head were a little rough, so i got some from napa and used it. worked good.

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