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Old 07-31-2010, 08:31 PM
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ozspit
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Default OS91FS loose front bearing

I have an OS 91 FS Surpass II which runs beautifully, nice idle, smooth transition and generally very reliable. Its had a lot of use now and the front bearing is a bit loose in the housing (bearing itself is ok) resulting in a bit of lateral prop shaft movement and hence vibration generally resulting in me losing prop nut mounted Al spinners (expensive!)
I have tried Loctite and shimming but these only seem last a couple of flights before the bearing is once oagain spinning in the crankcase housing and the lateral movement and vibration returns.
Apart from buying another crankcase, can anyone suggest a longer lasting fix?