black6spdz

iTrader: (11)

I just finished doing a cam swap on my 2000 ss with 40k on it, a lot of the parts that i purchased were used. I put in a slp oil pump that had low miles on it and the oil pressure seems too low to me. It made 30lbs when i was cranking at first and it holds 40 at a warm idle which seems ok but the pressure does not build fast if i hold it at like 3500 or so it might make 50 and when i run it through the gears it does not get over 60lbs on the gauge. The needle does seem "jerky" unlike before but it used to make more pressure with the stock pump. I am running 5w30 royal purple just like before the swap as well, and i put a new o ring on the pick up too. Any ideas on what i should try first?

Thanks

bigboykilroy

iTrader: (48)

your gonna need to make sure the o ring is not pinched or improperly installed even though you replaced it.

black6spdz

iTrader: (11)

i used a fel pro one that came with the timing cover set, should i get one from GM instead? Would it be worth the effort to hook up a manual gauge?

Thanks for the input

bigboykilroy

iTrader: (48)

it should have came with 2 what color did you use?
Gm or Felpro doesnt matter.
if the o ring was twisted or cocked when it went in you will have issues, or if you used the wrong color one. (truck pick up vs a car pickup ring.)

black6spdz

iTrader: (11)

i am not sure now that you mention it are they a different thickness? I dont think it is pinched but maybe i installed the wrong one, I put it on the pick up tube and it bolted together smooth.

Thanks

bigboykilroy

iTrader: (48)

Did you save the other ring or throw it out? look at what color it is. Red, Green, Black

black6spdz

iTrader: (11)

It might have gotten thrown out i thought the one i put in was blue but I am not 100%

black6spdz

iTrader: (11)

What color is the correct one for an f body?

bigboykilroy

iTrader: (48)

It should be the blue one, or if you got 2 (one not being blue) it will be the thicker o ring of the 2.

black6spdz

iTrader: (11)

Sounds like i will have to pull it apart thanks for all your help.

sscamaroburn02

iTrader: (14)

yeah i would go ahead and just make sure you've got the right color one. that dang o ring seems to cause so many problems. i re-used mine with 70K and seems to be fine with oil pressure. guess its luck of the draw.

black6spdz

iTrader: (11)

Yeah i wish i would have just left the old one on, t did not cross my mind that there were different widths and they were all close in diameter. It looks like I will have to take it apart for piece of mind now too even if that is not that case of my problem.

bigboykilroy

iTrader: (48)

if you did use the wrong one lube the new one up really well and center the pickup and use upward force and it should slide in nice and firm.

black6spdz

iTrader: (11)

thanks i will get it apart probably tomorrow

black6spdz

iTrader: (11)

just an update i put in a melling 10296 pump with the blue spring and there was no change. I cannot think of anything else. It is going on the dyno at baker thursday.

redws618

iTrader: (2)

probably a stupid question but did you change your oil after the swap?

black6spdz

iTrader: (11)

yeah i changed the oil and filter after and I am running Royal Purple 5w30 just like i did previous.

redws618

iTrader: (2)

Like evryone said then it's the pump ring, I changed mine too, had the felpro one as well.