sevanseriesta

iTrader: (34)

I installed an ls6 oil pump when I did the cam swap and nbow my oil pressure is lower then my stock pump was. I checked the ring it looks perfect and is not chewed up so i am just curious what my pressure should be at idle

Mike94ZLT1

iTrader: (3)

I have 55-60 at a cold idle, and 45-50 from a warm idle. I see 70-75 at 2500+ rpm when still on the cool side, and 60-65 when at 2500+ rpm and I've been driving for awhile

sevanseriesta

iTrader: (34)

do you have a ls6 ported or stock. I get under 20 psi at idle and around 30 on a cold start

luv2spd

iTrader: (1)

I get around 40 psi at idle when fully warm. Its about 5 psi higher than my stock pump on average.

sevanseriesta

iTrader: (34)

so what is wrong with mine

jrp

iTrader: (16)

im at around 60psi at idle.

01_SuperSlow

iTrader: (7)

That is exactly the psi's that my oil pump runs. I have a stock LS6 oil pump.

What psi is your pump running at? Did you put a new o-ring in there?

ZR2877

Mines a little over 40 at warm idle and a little higher when cold.

sevanseriesta

iTrader: (34)

No I re-used the stock one.........

C5X2C

I have a ported LS6 Oil pump. I am around 50 lbs at idle and 70-80 lbs above 3k rpm.

sevanseriesta

iTrader: (34)

WOW, That sucks guess I have to take the front part of the motor off again. I do not want to do that again.

2001 Pewter WS6

iTrader: (43)

Did you score a cam breaing during the cam swap. I did once by accident and had the same oil pressure issues which eventually let to my motor going

greatwhite99

How do you a score a cam bearing during installation? I am having similar low oil pressure issues after ls6 ported oil pump and cam swap.

Mike

sevanseriesta

iTrader: (34)

I am also going to ask what do you mean by "score" a cam bearing.

ILLWS6

iTrader: (13)

Yup, Me too. I got it fixed immediately to save my motor tho. If it's not an o-ring issue this may be your problem. I hope not for your sake, It's an expensive repair.

greatwhite99

My oil presure with the ported ls6 pump is like 30 at idle and 40 at 2200 RPM. Could it just be the o-ring slipped during the install? If so do I need to remove the pulley or can I just drop the pan down and get to it that way?

Mike

777

iTrader: (21)

you're not supposed to re-use the stock one...

JeffJeff

I put in a ported pump when I did my h/c swap. I had the same issue with losing about 5 to 7 psi across the board. I talked with a local shop and they said you have to shim the pumps to get more pressue. I had them shim it and I reinstalled it. I gained 10psi across the board versus the stock non-ported one I had on before the h/c swap.

93octane

I did the LS6 ported pump when the cam went in. The psi is much higher now. It was 40-45 at a warm idle, and now I get 60-60 at warm idle. I think it is worth the money ($125 or so).

2001 Pewter WS6

iTrader: (43)

Scratch or gouge it when the old cam came out or new one went in. Usually happens to the first cam bearing. If your oil pressure is down 20psi then shimming the oil pump isn't your fix ( you should never shim the pump anyway). Pull the cam out and see if the 1st cam bearing is scratched. If your fingernail catches in a groove when you scrape your nail across the bearing, then it needs replaced. Put it off now and replace your motor shortly there after... I scratched mine and noticed a 20psi drop in oil pressure immediately. Car seemed to run fine until I spun a main bearing. Sure wished I would have swapped out that bearing...