Has anyone had problems with J230 having high oil temps during summer.We purchased a new factory built J230 at the end of Jan 07 and flew it in hot OT air temps 30c plus without problems. We have now done over 300 hrs and are having major problems with high oil temps. With a OT of 31c we are struggling to climb to a 1000ft without the temp moving into the red, we have to level off and back the revs to 2600 rpms. This makes it very difficult to climb.
We have tried everything suggested by Jabiru without success inc. leak down test, compression test. new sender and oil gauge, check and cleaned oil cooler, changed filter oil, tried different levels of oil in sump. Oil pressure and CHT are OK.
Our real concern is that we had no problems in possibility higher OT temps when the motor was new but now without changing anything except the engine is older we are having problems. Our last fix is to try and change the ducting on the cowl but if this was to work, does not answer why the change. My feeling, with very limited experience is it could be an engine problem.
PS Have just heard on grape vine that Jabiru are working on a mod for cowl to adress oil temp problems.