[QUOTE=mr_matt;11808420]I have never seen bearing wear cause flames on start up. Is the turbine making funny noises when it is finally running normally?[/QUOT
Nope.. Sounds perfectly normal when all when fully spooled and in the air.
Originally Posted by
basimpsn
I think Kingtech engines are sensitive to certain brands of oil. I ran out of turbine fuel and use a friend of mine's fuel but after the flight my engine wouldn't cool down and turning the compressor by hand feels gummy, I quickly drain the last 50 ounce out of my tank and ran it thru which fix the problem. Not sure what brand oil my friend was using.
P.S Because of the gum-up bearing during start-up will cause excessive flames but will start eventually.
Yes gummy would be a good way to explain how the wheel feels when I turn it
[QUOTE=afioretti;11808739]How many hours on the motor? I highly doubt you caused this issue with 2 stroke oil. This will be an argument to go on long after the cows come home and leave again. All of these motors are similar in many regards but different enough to say that they are branded with different names. When you have it taken apart, since you have already been forthright in saying that you ran an oil not approved by the manufacturer, it would be interesting to see the condition of the chamber. The bearings might have overheated and then the issue arose not so much that the bearings caused the problem, so it might be something unforeseen or undiagnosed yet as to what caused this.
Andy Fioretti[/QUOT
I will check the hours soon. Just got home. But it not a lot. I will not be taking this engine apart. I will let KT do that and add what ever they find with the operation info I give them so thay can add it to their data base.
Originally Posted by
mr_matt
Yes I can see this, but in my experience anything gummy in the bearings gets washed away pretty quick. The OP says he was getting it on every start up.
.
actually only in the last 3 starts.
Thanks guys for your input... Im going to head into the garage now and this time with the GSU hooked up Ill start it and video for your analysis.
Trevor