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'52 Oliver 77 low oil pressure???

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09-23-2001 07:23:03

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A friend of mine has a 52 '77. The oil pressure barely comes of the guage. I read once that oliver made a "stronger spring" for the oil pump.
Has anyone experienced this? The tractor runs great, any ideas??? Thanks in advance!!!

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09-23-2001 19:25:13

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 Re: '52 Oliver 77 low oil pressure??? in reply to John, 09-23-2001 07:23:03  
Change the releif valve spring on the side of the block, install one out of a 1650.

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Paul Stanley

09-23-2001 09:46:26

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 Re: '52 Oliver 77 low oil pressure??? in reply to John, 09-23-2001 07:23:03  
The manual says that the idle speed pressure should be 10 lbs. It also says that the "rated speed" should be 12-15 pounds to Engine Serial Number 1099639. From 1099640 and up it should be 22-25 pounds. If you aren't registering the correct pressure the gauge could be at fault. Did you check it with another gauge?

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Larry Wolfe

09-23-2001 15:45:37

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 Re: Re: '52 Oliver 77 low oil pressure??? in reply to Paul Stanley, 09-23-2001 09:46:26  
There are a number of things to check.Make sure the restricter(small washer with a small hole) is in the base of the oil filter.Its under the pipe that sticks up. I have found the pipe and restrictor both missing.Check the main oil gallery relief valve,its on the right front of the engine.Look here before removeing the pan.

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