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Old 07-26-2009, 03:08 PM
  #272  
knobby1
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Default RE: New JetJoe J-Junior 4lbs turbine

ORIGINAL: frema

Sorry to tell you Jason and Jamiechip ,but the sound of the bearings after stopping the engine is not good , the preload is still not good.

You know i have also a small engine , but the bearing doesnt sound not like this when i stop my engine.

I hope the bearings will last ,but i have my doubt.

But succes with it.

Best regards,

Martin.
Hi Martin,
The sound of the bearings is similar to the engine I have and it has many hours actual run time, I think it sounds a lot worse on the video than it actually is, the bearings are still smooth and free. I think it's just the Junior's which sound like this, the other JJ's don't. I have set the pre-load to 30-35n and the new wave washer holds this load quite well. I've tested the load several times with the new washers and have noticed negligable change after several heat cycles.

Cheers,
Smithy.