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Case Tractors Discussion Forum
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Re: Case CC high engine oil pressure

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basil greenleaf

01-26-2013 14:24:36

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My CC has a plunger type oil PSI gauge on the block. It pops all the way out to show I have oil pressure. I have taken this pop out plunger apart several times. No relief valve on it. The pump consists of two small gears with no casting holes or other means of relief. And for the life of me I cannot find a oil pressure relief valve anywhere in the system. Thanks for the info. Basil

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01-26-2013 14:47:00

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 Re: Case CC high engine oil pressure in reply to basil greenleaf, 01-26-2013 14:24:36  
that's the oil pressure indicator not the system relief, relief valve is located in the pump body and adjustable on all of the C series except the late ones and should be set for 30-35psi

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basil greenleaf

01-26-2013 18:57:24

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 Re: Case CC high engine oil pressure in reply to dboll, 01-26-2013 14:47:00  
I have dropped the engine oil pan and took the pump out several times and cannot find a relief valve anywhere on the pump body. When I remove the cover there are two small gears (aprox. 1" in diameter)in the body but nothing else. Thanks for your info. Basil

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01-27-2013 06:42:55

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 Re: Case CC high engine oil pressure in reply to basil greenleaf, 01-26-2013 18:57:24  
it should be in the T shapped fitting screwed into the pump body which the oil line attaches to, if it's not there someone deleted it

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Christopher Mikesell

01-26-2013 20:05:27

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 Re: Case CC high engine oil pressure in reply to basil greenleaf, 01-26-2013 18:57:24  
Personally, I would go looking for a different oil pump. It is always possible that someone adapted a pump from another engine that had the pressure relief valve located in a different place. It takes torque to make that much pressure, which is probably hard on the pump drive gear on your camshaft, as well as on the pump itself. The last thing that you need is for somthing to fail and the oil pressure to drop to zero while you are running the tractor. Also, make sure that your gauge is accurate, and is calibrated in psi, not kpa (125 kpa = 18.1 psi).

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Christopher Mikesell

01-26-2013 20:22:45

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 Re: Case CC high engine oil pressure in reply to Christopher Mikesell, 01-26-2013 20:05:27  
Sorry about the pressure comment, I just re-read your first post and noticed that you already checked with multiple gauges.

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