Thread: M103 oil usage
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  #4  
Old 09-18-1999, 11:21 PM
metricman
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Your original valve seals, even if the brown 'viton' composition, would become stiff after this many years. Changing them would not be unusual at all. Not a big deal at all. Also a good time to reseal the cam cover at this time if it is leaking.

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