Oily exhaust blow by on the 582

[dalords]

Any suggestions on how to stop blow by at the slip joints on the exhaust on the rotax 582. The oily mess is is horrible

[924549]

It takes a little time but works. I used valve grinding compound from NAPA. Just spread it on the two halves and work it around. I think it took me about two hours. No issues since.

Pieter

[Av8r_Sed]

Yup, lapping compound, elbow grease and lots of patience. I spent more than two hours and only got it to good enough. Once you've got them lapped in don't forget to apply a tiny amount of anti-seize to the joints to keep them from freezing up.