Exhaust smoke test, leaks found.

[Gwsinc]

I smoke tested my exhaust yesterday, revealing one leaky cat-heat exchanger gasket and 2 leaky cat-muffler exhaust olives/clamps. The extent of the 2 cat-muffler leaks surprised me as I was very careful to orientate the olives as perfectly as I could last time the exhaust was off.

Thinking about it now, the olives and both mating surfaces should really be perfectly smooth for a good seal but I suspect most of us just re-use the old existing slightly rusty olives, so many may have a similar leak.

New gaskets and olives are on the way so will report back once fitted.

Word of warning tho, the aeroquip clamps state their torque specs are 20-21 nm while the 993 tech specs booklet says 25-30nm, don't be tempted to torque past 21 nm, guess what happens when you follow the booklet...

 

[nk993]

interesting. would love to see a write up or video one day of how you have been doing all these smoke tests. I think I have a leak somewhere (rough idle sometimes) so might invest in a smoke tester.

 

[Gwsinc]

interesting. would love to see a write up or video one day of how you have been doing all these smoke tests. I think I have a leak somewhere (rough idle sometimes) so might invest in a smoke tester.

I'll repeat the test and post on my instagram (below) once the new parts come in. For info this is the smoke machine I bought: https://amzn.eu/d/jh877TH