+- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums)
+-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1)
+--- Forum: Ask Your question... (/forumdisplay.php?fid=45)
+--- Thread: CM871: What is the normal crankcase pressure inH2O (/showthread.php?tid=8808)
CM871: What is the normal crankcase pressure inH2O - RMezaJr - 03-24-2023
What is the normal crankcase pressure supposed to be at with a maintenance free filter?
Mine is logging at a min of 0.5 and a max of 0.8 but mostly stayed at 0.6-0.7 inH2O.
RE: CM871: What is the normal crankcase pressure inH2O - Bengy88 - 03-24-2023
I’m assuming you meant inhg. To figure that in psi you would divide 0.8 by 2.03 or 2.036, can’t remember but either works lol. That puts you at less than half a psi of crank case pressure. Your crank case pressure is good.
RE: CM871: What is the normal crankcase pressure inH2O - Bengy88 - 03-24-2023
You also have to remember that the older a sensor is it will start giving slightly inaccurate readings. Pressure sensors are the absolute worse for this.
RE: CM871: What is the normal crankcase pressure inH2O - RMezaJr - 03-25-2023
(03-24-2023 )Bengy88 Wrote: You also have to remember that the older a sensor is it will start giving slightly inaccurate readings. Pressure sensors are the absolute worse for this.
Yeah it seems a little low for the blowby i'm getting. I'm gonna replace it and recheck it, and yes i meant inhg, thanks!