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Originally Posted by george douglas
What kind of oil are you using? I am wondering if it would peg out with a synthetic in the cooler weather. I am thinking about trying the Amsoil straight 60 weight in my 01 road king to see if I can achieve an even quieter running motor than it is right now and then if that doesn't do the trick I will increase the oil pressure with the stronger relief spring.
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HD recommends 60wt oil above 80 degrees F. and 50wt. above 60 degrees F. anyway. I don't know what oil others are using but with 15w-50 or 20w-50 the hot oil pressure with the Baisley spring in my bike is 8 psi idle and 35 psi at 2,000 rpm. It's a little higher when cold. The spring is a good deal but I think it would lead to excessive oil pressure with 60 wt.
Just my opinion, though.
Regards,
NUC