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97 7.3 exhaust manifold bolts

15K views 4 replies 3 participants last post by  CSIPSD 
#1 ·
got a exhaust leak on the typical driver side rear exhaust manifold section...re checked the bolts and they seem loose now my question is what were the original torque specs and how much torque should i apply to snug them back up

stock E350 97 7.3 besides 6637 and muffler delete...cant afford to break these bolts so need some feedback
 
#2 ·
New bolts:

Exhaust Manifold Bolts, M8-1.25 x 30
(Ford) F4TZ-9S425-A
(International) 1820513C1

Torque: 45 ft-lbs

Cheers!
 
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#3 ·
Pick up some stainless one's from Fastenal...

Use Neverseize on them.

I hope there not just broken and rusted in there, they dont typically back out. Of course thats just what I have found on older trucks, but I dont know how old your swap is...

Stainless is the key however.
 
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