High oil pressure? - Page 5

Charles Rainey · 07-02-2011, 10:32 AM

Carl
You cant be 51 years old. You been doing CNC crap for more years than that. Yep HeHaw
ED
I, just as you do, dont want any more than 40 psi but I do it differently. Like I said, many ways to skin a cat. I use a slightly larger pump and then dump extra back to pan down the back of the pan. I never see a drop in pressure at the end of a run(unless I run 3 quarts). I use a set screw on the spring to set the pressure to dump. I mill a slot so that if pressure builds up, as the unloader moves back it will uncover more slot and dump to pan. It takes very little HP to turn a oil pump dumping to pan, but it does take HP to turn a pump dead heading to bypass in its self. Man it doesnt mean I know any more than you do, I just do it differently. Probably same end result
cheers tall

carl hinkson · 07-02-2011, 01:40 PM

Quote:

Originally Posted by Charles Rainey

Carl
You cant be 51 years old. You been doing CNC crap for more years than that. Yep HeHaw
ED

Only have been CNC machining blocks for 11 years or so.

07-02-2011, 10:32 AM	#41
Charles Rainey Junior Member Join Date: May 2011 Posts: 40 Likes: 0 Liked 0 Times in 0 Posts	Re: High oil pressure? Carl You cant be 51 years old. You been doing CNC crap for more years than that. Yep HeHaw ED I, just as you do, dont want any more than 40 psi but I do it differently. Like I said, many ways to skin a cat. I use a slightly larger pump and then dump extra back to pan down the back of the pan. I never see a drop in pressure at the end of a run(unless I run 3 quarts). I use a set screw on the spring to set the pressure to dump. I mill a slot so that if pressure builds up, as the unloader moves back it will uncover more slot and dump to pan. It takes very little HP to turn a oil pump dumping to pan, but it does take HP to turn a pump dead heading to bypass in its self. Man it doesnt mean I know any more than you do, I just do it differently. Probably same end result cheers tall