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GTS Exhaust Gasket Install
jimc wrote:
The correct way is to install fully into the silencer (muffler), with the graphited end first for the new-style collars[1]. If you install onto the downpipe first you are in danger of it not being fully home in the silencer.

Also insure all traces of the old collar are removed first, and the mating surfaces are spotlessly clean and smooth. This may take some chipping old gunk out and the use of a rounded file or a dremel. Having the surfaces clean and smooth will vastly improve the life of the collar, which is designed to slide on the downpipe to take care of expansion issues. On the 500 engines at least this slide can be 3mm or more. Any tiny bits left proud on the downpipe in particular will cause premature failure.

[1] This end goes into the silencer:

This end is left just poking out towards the engine:

Last Updated Thu Apr 05, 2012 9:01 am
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