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Showing results for tags 'oil shaft'.
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I recently rebuilt my '82 l28et for my '77 and am having oil pump issues now. The car idles fine but with cold oil my mechanical only sees around 20 psi and as it warms it goes down to 12-15 like it use to. My worry worry is that with cold oil the car use to see 45-50 psi at idle and increase with revs to 60 or so. With revs the pressure never goes above 20 psi. I installed the pump and shaft like the "how to rebuild your datsun OHC" book states but ran into a problem with the oil squirt hole not lining up with the punch mark on the pump shaft gear. With the marks lined up the dizzy shaft end isn't even close to being lined up. When I line the tang of the dizzy side up to where it needs to be the marks on the shaft and pump housing no longer line up. The pump is off an '83 turbo motor where as the shaft is from the '82 motor. I don't see how the shaft mark needs to be lined up with the pump housing since the shaft just spins along with the motor but maybe I'm wrong in this thinking. I am planning on getting a different gauge to see if maybe my gauge is faulty. Taking the oil cap off I do see oil squirting up to the cam but I am not sure if it is a sufficient amount. Any ideas on what may be causing my lack of oil pressure. Oh and the oil pick up tube is free and clear from debris as well. Thanks guys, Kevin
