Author Topic: McCulloch oil pump problem  (Read 7987 times)

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Offline Al Smith

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Re: McCulloch oil pump problem
« Reply #40 on: June 16, 2013, 07:29:31 am »
Well that check valve business it's a known fact that a lot of the 10 series saws had slight failures as they aged . Danged things would suck bar oil back into the crankcase and smoked .Usually not a problem after they had ran a while .In extreme situations though they could flood the cylinder and drown the plug .

If not that bad extended usage on a bottom exhaust 10 series with the screens and baffles in place could lead to pyralized oil carboning up the exhaust port which chewed the piston to pieces given enough time .Good oilers if not for that problem .

 

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