Author Topic: McCulloch oil pump problem  (Read 7991 times)

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Offline brokenbudget

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Re: McCulloch oil pump problem
« on: April 07, 2013, 04:15:00 pm »
the little check valves in the pump housing are still stuck. if you're seeing 'pressure', or bubling oil coming out of the tank vent, it's because the checkvalves are stuck. i'm talking about the small spring and ball type in the pump housing that you can't get at as they are permenantly assembled. you need to get them unstuck. try as i posted using the red piston/spring. you need to be pretty vigorus moving that piston in/out until they free up. you don't have the pump cleaned perfectly until it pumps oil. after that it'll take about a minute or 2 until you get bar oil to the bar.
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