getting the old exhaust manifold off
#16
Corrosion, seizure, gradual annealing of the metal. I have not reused exhaust hardware, if I've had the option.
Granted, I've worked on pretty much everything - which means I've run into more headaches than most. "I don't look for trouble, it finds me with alarming regularity..."
Some screws should not be re-used. Any carbon steel screw that is partially/wholly immersed in water, any steel screw subject to exhaust head, any fastener that locks through a deformed component (Nylon collar, deformed threads,) should not be reused if you have a choice.
Granted, I've worked on pretty much everything - which means I've run into more headaches than most. "I don't look for trouble, it finds me with alarming regularity..."
Some screws should not be re-used. Any carbon steel screw that is partially/wholly immersed in water, any steel screw subject to exhaust head, any fastener that locks through a deformed component (Nylon collar, deformed threads,) should not be reused if you have a choice.
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