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wildbill410 · Oct 20, 2007, 10:41 AM

I'm working on this international model H tractor. I have some of the torque specifications.
I need to know the torque spec. of the intake and the exhaust manifold.

CaptainRich · Oct 20, 2007, 05:41 PM

Originally Posted by wildbill410

im working on this international model H tractor. i have some of the torque specifications.
i need to know the torque spec. of the intake and the exhaust manifold.

Torque specifications are quite general. Especially with components like intake and exhaust gaskets. The theory behind torquing these is to ensure a complete seal. There is really no gasket to crush in this type application to complete that seal. Clean threads and clean surfaces is always a good thing.
As long as the torquing is done in a sequence, and evenly, from the middle towards the outer ends, something in the order of 17 to 21 ft lbs should be sufficient to provide the correct seal.
This also depends upon the type of gasket material. The common type is a multilayered composite that seal with these specs. Of course, if you find anything published that differs from these spec, by all means... use those numbers.

CaptainRich · Oct 21, 2007, 05:59 PM

As long as you didn't warp anything vital while tightening, you should be OK. It'll take a fairly stout wrench to really cause any damage! If you're concerned, release the over-torque and let the components "relax" for a while. Inspect the gaskets for any contact flaws, and if all looks OK, then reassemble if appropriate.

These old machines are usually quite forgiving in usage and in repair! Sometimes to the point of being overbuilt...

I have seen the leather from tractor seats use as gaskets on some things, and tin cans used as crank bearings on old Pipers ! (I'm from Alaska)
You'd be surprised as to what field intervention can come up with when you got to get home...