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Allis B

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Brian

07-30-2001 19:56:28




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I just rebuilt a Allis B, and I am having trouble get good oil pressure. Bearings ok new veins in the oil pump. Anybody have any ideas?




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Duey (IA)

07-31-2001 11:13:03




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 Re: allis B in reply to Brian, 07-30-2001 19:56:28  
Brian,
When you rebuilt the engine, did you replace the cam bearings? They are the primary regulator of oil pressure. Too much wear = low pressure. Also the oil pump side plate to veins clearance or wear of the plate regulates how much pressure the pump will put out. The oil filter is another area that can cause low pressure. A missing or loose center post in the filter bracket or a low density filter can allow too much pressure to bypass. (The gauge only measures back pressure of the whole system) Duey

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steve

07-31-2001 15:31:56




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 Re: Re: allis B in reply to Duey (IA), 07-31-2001 11:13:03  
what do you call low. 10-15 psi is about all you see. look in the valve cover box and see if there is oil to the top. remove the small line to the governor bushing and see if you have a flow there. low pressure is normal.



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