How to repair oil pump not working on Bayou 400. So your 400 Bayou has been asleep in the garage for years. You decide to wake it up and change the fluids and the oil pump doesn't seem to be working. The oil pump plastic gear, the gear that powers the pump, has broke after years of sitting in an oil bath. Plastics are derived from oil, so don't be alarmed, it just happens. This video will explain what you need to fix the oil pump for less than $150 of parts. This video will walk you through the disassemble process: [ Ссылка ]

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