Low oil pressure after cam install - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Aqua Blue RS/SS · 06-01-2023, 08:22 PM

Not enough apparently… here’s the bearings for an LS3/L99 amongst a lot of other gen 3/4 engines just for starters…
https://www.summitracing.com/search/...-based-engines

pierre · 06-01-2023, 08:36 PM

is your car auto . if so did you replace the valley plate!

larry_g · 06-01-2023, 08:37 PM

I'll just leave this here...

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FasNuf · 06-01-2023, 08:39 PM

LOL! I was just looking for that page.

larry_g · 06-01-2023, 08:40 PM

Quote:

Originally Posted by FasNuf

LOL! I was just looking for that page.

Just got them today, had to go look for myself.

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ZL1_Chris · 06-01-2023, 08:43 PM

Quote:

Originally Posted by Aqua Blue RS/SS

I’ll take that bet, the cam journals are pressure fed from the pump. They get play oil psi goes down. Do some research it’s actually a semi common issue in LS engines. Like I said above I don’t think that’s the problem here but it is definitely possible.

Quote:

Originally Posted by Aqua Blue RS/SS

Not enough apparently… here’s the bearings for an LS3/L99 amongst a lot of other gen 3/4 engines just for starters…
https://www.summitracing.com/search/...-based-engines

My apologies I was mistaken on the holes but honestly you sir and this forum can go **** its self because I am off later

FasNuf · 06-01-2023, 08:44 PM

Quote:

Originally Posted by larry_g

Just got them today, had to go look for myself.

Sent from my Pixel 5 using Tapatalk

Yeah, the books are nice to have. Page 9–1936 says that the oil exits the oil cooler and is then directed to the upper main oil galleries and the valve lifter oil manifold assembly oil from the upper oil gallery is then directed down to the crankshaft and camshaft. That’s why the dart block is so nice my opinion.

FasNuf · 06-01-2023, 08:54 PM

Quote:

Originally Posted by ZL1_Chris

My apologies I was mistaken on the holes but honestly you sir and this forum can go **** its self because I am off later

Come on Chris! We're here to help the OP and learn in the process. Don't take things personal when someone corrects. I get schooled here a lot and have been proven wrong numerous times, especially in tracking the car.

Hope you don't take offense.

FasNuf · 06-01-2023, 08:57 PM

Here’s you go OP. A couple things from the book.

Sorry, phone seems to flip the pics

PaulsSS · 06-01-2023, 09:50 PM

You would be surprised how much oil pressure can bleed off the journals. Just tossing it out there because I seen it more than once. I always check the cam journals against the old cam and go from there. 5 big leaks when its hot, sometimes you can hear the cam rattling in the block too because its way loose. Not saying thats it but its much more common then you think. I been down this road a few times and its aggravating to say the least. I would check the oring and if there is no problem there i'll bet its the cam bearing-cam journals fit.

acutron42 · 06-02-2023, 06:58 AM

Hopefully for your sake it is as simple as the o-ring. How many miles are on it? It wouldn't have hurt to put a bore gauge in the block & verify the cam journal diameters just for peace of mind. There are many variables here but check the most obvious first.

morepowerjoe · 06-02-2023, 07:06 AM

I'm with the pick up tube oil ring myself. Or maybe it didn't seat all the way. That's the reason why I installed this little guy when I rebuilt my engine. https://www.michiganmotorsports.com/...46a3c410f3a3a0

But if it was me I would replace the oil pump too just for peace of mind.

Eastbaycamaro · 06-02-2023, 07:31 AM

What brand oil pump are you using. Also if it’s a Melling pump what color spring are you using. I am wondering if the oil pump bypass valve is sticking and bypassing oil at low engine speeds.

LS3Kook · 06-03-2023, 08:49 AM

Replaced the valley cover last night, the oil pressure did rise at cold start to around 40psi but still has a slow drop off once its warmed up. So onto the fun part tonight and gonna drop the cross member and replace the pickup tube and o-ring. keep yall updated appreciate the input. hopefully my next message will be saying the oil pressure issue is fixed.

I forgot to add on the original post, I did replace the cam retainer plate and torqued it to factory spec per all data just like everything else. doubled and triple checked everything. I did put in a new gm oil pump, got it when I ordered the cam from Texas speed. I see what you guys are saying about the cam journals but the vehicle did not have any oil pressures issues prior to the install and the cam came out smoothly and went in the same.

06-01-2023, 08:22 PM	#15
Aqua Blue RS/SS Drives: ABM #93 Join Date: Oct 2018 Location: Lotaburger Posts: 2,695	Not enough apparently… here’s the bearings for an LS3/L99 amongst a lot of other gen 3/4 engines just for starters… https://www.summitracing.com/search/...-based-engines __________________ ABM #2399 2SS/RS:SOLD ABM #93 2SS/RS Black Rally stripes, Titanium Interior 4,000 miles: GM GFX side skirts and diffuser waiting on paint, GM dovetail, GM heritage, RPI ZL1 style splitter. ‘87 IROC-Z Iroc blue. all original unmolested with 50K miles.

06-01-2023, 08:36 PM	#16
pierre Drives: 2010 camaro ss/rs imperial blue met Join Date: Jul 2013 Location: Gatineau,canada Posts: 8	low oil pressure is your car auto . if so did you replace the valley plate!

06-01-2023, 08:37 PM	#17
larry_g Drives: 2014 1SS/1LE Join Date: Nov 2015 Location: Louisville, KY Posts: 826	I'll just leave this here... Sent from my Pixel 5 using Tapatalk __________________ 830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.

06-01-2023, 08:39 PM	#18
FasNuf Drives: 2014 Camaro ZL1 Join Date: Jul 2019 Location: Oregon Posts: 1,618 View My Garage	LOL! I was just looking for that page. __________________ . . . . https://www.youtube.com/channel/UCgN...etl17hA/videos

06-01-2023, 08:57 PM	#23
FasNuf Drives: 2014 Camaro ZL1 Join Date: Jul 2019 Location: Oregon Posts: 1,618 View My Garage	Here’s you go OP. A couple things from the book. Sorry, phone seems to flip the pics Attached Images __________________ . . . . https://www.youtube.com/channel/UCgN...etl17hA/videos

06-01-2023, 09:50 PM	#24
PaulsSS Drives: 15SS Camaro Join Date: Dec 2020 Location: US Posts: 346	You would be surprised how much oil pressure can bleed off the journals. Just tossing it out there because I seen it more than once. I always check the cam journals against the old cam and go from there. 5 big leaks when its hot, sometimes you can hear the cam rattling in the block too because its way loose. Not saying thats it but its much more common then you think. I been down this road a few times and its aggravating to say the least. I would check the oring and if there is no problem there i'll bet its the cam bearing-cam journals fit.

06-02-2023, 06:58 AM	#25
acutron42 Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020 Location: WNY Posts: 733	Hopefully for your sake it is as simple as the o-ring. How many miles are on it? It wouldn't have hurt to put a bore gauge in the block & verify the cam journal diameters just for peace of mind. There are many variables here but check the most obvious first. __________________ 2013 2SS GPI built & tuned 415, spec'd by Andrew Cammer. GPI ported intake/tb/heads, Tooley springs, CHE trunnions, Callies rotating assembly, Diamond pistons, GPI SS3 VVT, ATI 10% ud damper, Circle D 3800, Kooks ceramic coated lt's with green cats, Mishimoto rad & oil cooler, Derale trans cooler, Holley efi rails.

06-02-2023, 07:06 AM	#26
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	I'm with the pick up tube oil ring myself. Or maybe it didn't seat all the way. That's the reason why I installed this little guy when I rebuilt my engine. https://www.michiganmotorsports.com/...46a3c410f3a3a0 But if it was me I would replace the oil pump too just for peace of mind. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

06-02-2023, 07:31 AM	#27
Eastbaycamaro Drives: 2015 2ss/rs Join Date: Aug 2021 Location: Fremont Ca Posts: 29	What brand oil pump are you using. Also if it’s a Melling pump what color spring are you using. I am wondering if the oil pump bypass valve is sticking and bypassing oil at low engine speeds.

06-03-2023, 08:49 AM	#28
LS3Kook Drives: 2014 Camaro 2SS RS 1LE Join Date: Feb 2022 Location: North Carolina Posts: 6	Replaced the valley cover last night, the oil pressure did rise at cold start to around 40psi but still has a slow drop off once its warmed up. So onto the fun part tonight and gonna drop the cross member and replace the pickup tube and o-ring. keep yall updated appreciate the input. hopefully my next message will be saying the oil pressure issue is fixed. I forgot to add on the original post, I did replace the cam retainer plate and torqued it to factory spec per all data just like everything else. doubled and triple checked everything. I did put in a new gm oil pump, got it when I ordered the cam from Texas speed. I see what you guys are saying about the cam journals but the vehicle did not have any oil pressures issues prior to the install and the cam came out smoothly and went in the same.