T Mack 1 - FSO
Serious Thumper Alliance Member
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sold 2001 LS650 for a 1986 XLH1100
Posts: 2919
Emmaus,Pa
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OOPS, noticed I didn't answer all of your questions, My oil pressure gauge is 60 psig.
At the 40 deg F outside temp's the start-up pressure is around 40 psig. A rev to around 2000 rpms will take to 60 psig.
So the concern at cold temps (bitter cold for you southerners) is too thick an oil and the pump not being able to push it up to the head. Or in my case too high a pressure popping the tube off the oil presssure line (NOTE: "trust me", remember to tighten the hose clamps on the test port fitting before rev'ing a cold engine after installing stuff.... and the answer is 5 feet & about a pint ... ).
Now, in the 30 to 40 deg F range, most oils are fairly viscous so at 40 psig it will easily get to the head & cam. NO worries. If you where in Barrow Alaska , 20W-50 or 10W-40 might be a different story....
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