GMC Motorhome Digest V3 #213

duane m simmons

New member
Jul 6, 1999
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Phil Stewart
The torque sequence is important when installing exhaust
manifolds/headers.
Also, First thing to do is run a bottom tap down the holes to ensure that
the bolts are not hanging on old threads.
The Center Bolt is the last bolt to torque. The two next to the center
is the first ones to torque, then the out side two. The last is the
center since it is off-set from the others. Anti-seize on the bolt
threads is what I do so that they can be removed in the future...never
dry.

Duane Simmons