Manifold torque model a ford

None from the factory but I think about 35 Ft# is best. If that doesn't work you have something else wrong.
 
35 ft lbs has worked for me, but be sure to-torque a couple of times after you have done some miles. I recheck mine when the engine cools done.
 
I do as #3 & #7 said and torque to 35 lbs. I believe many use 50 lbs. or so since the nuts/studs are similar to the head nuts/studs. Manifolds don't have compression working against them like the head so don't require the same torque. The key is to torque in steps working first from the center two to the outer two nuts. That way you don't trap even a slightly warped manifold or the block not being true resulting in a broken manifold.
 
I've never used a torque wrench on the manifold, center out. If it leaks torque it down more, you're not going too loose engine coolant like a head. Make sure the washers go on correctly!
 
The washers edges need to touch the manifolds and bow out to the nuts, likening to a spring spring washer, but not. The convex out helps keep pressure on the manifolds. Hope this helps, very wordy it would be easier to install for you.
 
RUNNERBUN said:
Just as bighammer said. Convex side of washer to the the nut side and the concave side of the washer to the manifold side.

Runner
Click to expand...
IF the ear heights on the manifolds aren't even, you can carefully grind a relief on the outside edge of the concave washer, mark it & carefully install it in the right place. (TIP#23)---"LITTLE" things mean a LOT!
Bill Precise
 
It took a while but I finally got my answer. Which way does the manifold washer go ? CONCAVE towards the engine. CONVEX out. And that make sense to me and also the way I reassembled the unit. Thank you
 
Someone mentioned BUTT-DIALS----Ever have someone come over to find out why he could hear you on the phone, but you couldn't hear him?
I drove to my Friends' house & asked, "DID YOU GET MY E-MAIL"? My Daughter sed I'm an IDIOT, but the Dog & I have GREAT FUN, together, everyone else just stays away from me!---LOL
Bill Strange
 
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