Cummins isx500 with exhaust manifold leak

[Rawze]

(12-15-2021 )Chamberpains Wrote:  Even the broken bolt usually isn't bad to get out. Left handed drill bit and an easy out usually do the trick. The rest of them the name of the game is slow slow slow and easy with a small brake bar. Work them back and forth but by but until they are free. Then run them out.

Get all new bokts and spacers and put a very thin coating of anti seize on the threads before putting them in. Then properly torque everyone of them in proper sequence a couple times. Then hit them all again after a few hours of running the truck under load.

Should also have the manifoldd itself surfaced and flattenend. They do distort over time and cause stress on the bolts.

ALSO, and just as important is to ensure the manifold holes are reemed properly. This is one of the biggest reason (besides someone improperly torquing the bolts) that they break bolts to begin with. Here is a reference to this: http://rawze.com/forums/showthread.php?t...2#pid66592