Ford 172 CI engine exhaust manifold torque procedure

oldfarmall · Dec 4, 2020

Hello, can anyone tell me the torque sequence for the exhaust manifold on a ford 172 gas engine for the 6 bolts? Also I'd the torque rating 40-50 ft pounds? This engine is in a 1963 Ford 4140 hd industrial tractor. Thanks!

-Jesse

ESVADuke · Dec 5, 2020

My manual just says "evenly and alternatively" 40-50 ft-lbs torque.
So tighten them all incrementally. I'd start in the middle and work out.

Sean in PA · Dec 5, 2020

Sorry to pick nits, and not that it would make any difference in the torque specs or procedure, but isn't that a single manifold for intake & exhaust? And the parts drawing doesn't show bolts, it shows studs with nuts.

ESVADuke · Dec 5, 2020

correct, studs and nuts

oldfarmall · Dec 5, 2020

(quoted from post at 10:05:18 12/05/20) Sorry to pick nits, and not that it would make any difference in the torque specs or procedure, but isn't that a single manifold for intake & exhaust? And the parts drawing doesn't show bolts, it shows studs with nuts.

Yes, the manifold is intake and exhaust is a single manifold. Mine had bolts not studs. Thanks for help so far.

-Jesse

Ford 172 CI engine exhaust manifold torque procedure

oldfarmall

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Sean in PA

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oldfarmall

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