Oil weight and pressure relation

schardbody · 08-17-2012, 02:08 PM

Don't run thicker oil to band aid a pressure problem. Thicker oil will read higher pressure only because of the restriction to flow which means less oil moving through the bearings which means more heat.

I'm with Gerald sounds like a relief issue. Suction side would usually show low pressure when cold since the oil is thicker the pump will pick up more air than oil... not always though.

First thing I'd do is talk to Alvin and see what he recommends since he was just in it.

08-17-2012, 02:08 PM	#11
schardbody Senior Member Join Date: Sep 2008 Posts: 1,158	Don't run thicker oil to band aid a pressure problem. Thicker oil will read higher pressure only because of the restriction to flow which means less oil moving through the bearings which means more heat. I'm with Gerald sounds like a relief issue. Suction side would usually show low pressure when cold since the oil is thicker the pump will pick up more air than oil... not always though. First thing I'd do is talk to Alvin and see what he recommends since he was just in it.