Originally Posted by
drac1
Hey Claude,
I only use the Hatori #178 O ring. I've found this one lasts much longer than other brands I've tried.
I have 119 flights on mine now and it's running great. I have had one problem that has reoccured twice, but hopefully I've got that sorted now.
Have you any idea what area the oil is coming from? Like which part of the engine has oil on it?
Scott
I use the HATORI O ring as well but what I found is that the positioning of the muffler onto the Header is very important.
You must have the muffler at the same height as the Header and they have to be parallel to each other otherwise you will create a stress point on the O ring and over time with the movement of the engine the O ring will deteriorate at the stress point and oil leakage will occur
Hope this helps