ozbear

With the balance I don't think it's far out they seem to run too smoothly.Having said that the former owner of my 2200 had it balanced whilst it was being rebuilt due to a prop strike.

In the automotive industry today head bolts are torqued with a degree wheel which gives a truer tension also the bolts act kind of like a spring .I think with the jab what is needed is a bolt that will give but come back as we'll to cope with the expansion and contracting cycles.

Yes i have found that insurance companies are great as long as you dont want to make a claim. I think its possible the oil could have broken down due to the heat as well.

I doubt the new nuts caused the problem i think it maybe that once the cases had fretted and you fitted the new nuts it may have crushed the bearing shells to reduce the clearence but if the cases were that bad you should have had a huge oil leak before the nuts were fitted.To me it sounds more like a lube problem.Did they check the tunnel sizes after strip down.

Thanks Old Koreelah and Dazza 38 for the warm welcome,Its raining here so no flying today 100mm since 9am yesterday.

Hi I'm new to this site I hope I can contribute in some way I have owned two thrusters 1 chinook a lightwing and two xairs one of which I built myself I first flew ultralights in 1987 my current aircraft is a xair hawk or hanaman Clear sky's ozbear