Rotec Liquid Cooled Heads for Jabiru Engines

[Major4567]

Kevin K

If you are interested in looking at the LCH in person or would like to see pics of my installation PM me. I live in the Columbus, OH area if you want to look at them. Be glad to show you.

Steve
Waiex 054YX
Jab 3300

[Kai]

One of my LCH´s was leaking oil as well.

It turns out that the pushrod tubes´ o-ring sealing surface in the original Jab aircooled head gets worn/damaged over time during opeations as normal wear. As long as the tube remains in its original position everything is fine, but when the engine top end is reassembled with new LCH´s and old tubes, the fun begins.

The leakage has nothing to do with the LCH heads as such and won´t go away before the offending pushrod tube in question is replaced with a new one. Refacing is not an option as the tube sealing surface will lose too much material, reducing o-ring pressure and causing a leak for this reason.