lukesdad04

I just swapped the cam in my truck and have lost some oil pressure. The truck used to idle hot around 30psi and go to 40 to 45 psi at highway speeds. It now idles hot at 20psi and goes to 35 to 37ish at highway speeds. So I have lost about 10psi thru the spectrum. Anything to worry about?? Same weight oil after cam change 5w 30.

white lightning SS

iTrader: (3)

You may have nicked a cam bearing during install or the bearing to cam clearance is greater with the new cam. Did you replace the frt retainer plate that has the seal for the oil gallery?

Tootall

iTrader: (79)

the cam plate is really tender . . . if you torque it too much . . . it will crack

Coban

iTrader: (14)

I did lose a little bit of oil pressure after my cam swap. Less than 5 psi though. I just figured the clearances weren't as tight.

02Reaper

iTrader: (2)

+1. Most likely nicked a cam bearing on the removal/install, or the bearing clearances are bigger now.

Stroker2112

well....I'm having the same problem...my pressure used to idle hot at 30-40psi...now it's at 20psi and appears to be dropping gradually. I didn't swap cams, just installed a new balancer... I'm thinking my issue is the front seal of the timing cover...

Stroker2112

problem is I can't easily get to the front seal or oil-pump (to check the O-ring) because the front diff is blocking the oil pan from dropping....

stock48

iTrader: (16)

Is your truck DOD?

budhayes3

iTrader: (19)

If there was an issue with the front seal it would be leaking externally, and I doubt that you'd see a noticable oil pressure loss, just a big leak.

LsxCody

iTrader: (3)

What's the average oil pressure on a 5.3. I know my 2000 at idle the oil pressure is alil over 40 and at wot about 55. Is that bad