Oil pump kaput! - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

davidcroft · 04-14-2013, 07:58 AM

Quote:

Originally Posted by CFD

Loolks like I may have lost my oil pump on an L99. Just about pulling into my shop I lost oil pressure and the valve train started getting noisy. Checked oil level, all is fine. Going to try to make some room in my shop today and get it in so I can check it out further. I'll keep everyone posted on my findings once I get into it.

Please update us on this

driyac · 04-14-2013, 08:01 AM

Quote:

Originally Posted by CFD

Loolks like I may have lost my oil pump on an L99. Just about pulling into my shop I lost oil pressure and the valve train started getting noisy. Checked oil level, all is fine. Going to try to make some room in my shop today and get it in so I can check it out further. I'll keep everyone posted on my findings once I get into it.

Get the melling call it a day.

CFD · 04-14-2013, 08:02 AM

Quote:

Originally Posted by davidcroft

Please update us on this

I definately will especially were I've always kept an eye on this in the L99. I've always had confidence in them.

Just a refresh on my car, currently just a bit over 68,000 miles

TSP VVT-3 cam
AFM/DOD delete.
stock pump
stock chain and tensioner

POS Dakota · 04-14-2013, 08:08 AM

What is the difference in materials used between the stocker and the melling?
Are there powder metal gears in the stocker and machined steel gears in the melling?

Anyone look at their old failed pump to see what physically happened?

CFD · 04-14-2013, 08:12 AM

Quote:

Originally Posted by POS Dakota

What is the difference in materials used between the stocker and the melling?
Are there powder metal gears in the stocker and machined steel gears in the melling?

Anyone look at their old failed pump to see what physically happened?

My understanding is that the Meling uses better quality components, as to the gears specifically I am not sure.

The most common failure is the pressure relif valve hanging up but it is common in the LS3's and relitavely rare in the L99's

LS3 SS · 04-14-2013, 08:43 AM

Quote:

Originally Posted by POS Dakota

What is the difference in materials used between the stocker and the melling?
Are there powder metal gears in the stocker and machined steel gears in the melling?

Anyone look at their old failed pump to see what physically happened?

Litle88 called melling and actually got a detailed explanation of what makes their OPs better than OEM, and he posted it in another thread. that explanation is what sold me; that and the fact I couldn't Google failure rates. I'm sure he will chime in.

litle88 · 04-14-2013, 09:13 AM

Quote:

Originally Posted by POS Dakota

What is the difference in materials used between the stocker and the melling?
Are there powder metal gears in the stocker and machined steel gears in the melling?

Anyone look at their old failed pump to see what physically happened?

Here you go bud. Start at post 52...enjoy

http://www.camaro5.com/forums/showth...hlight=Melling

POS Dakota · 04-14-2013, 09:25 AM

Quote:

Originally Posted by CFD

My understanding is that the Meling uses better quality components, as to the gears specifically I am not sure.

The most common failure is the pressure relif valve hanging up but it is common in the LS3's and relitavely rare in the L99's

Thanks.

If it was gears phycially breaking my thought was going to be crank harmonics even though an oil pump on the crank snout as a WHOLE would serve to help dampen them. I was thinking the crank gear/pump gear interface was pounding itself out.

Stupid relief valve? LOL what a dumb thing to ruin the whole deal.

Hopefully it doesnt happen to me!

POS Dakota · 04-14-2013, 09:25 AM

Quote:

Originally Posted by litle88

Here you go bud. Start at post 52...enjoy

http://www.camaro5.com/forums/showth...hlight=Melling

Thanks man! I was actually going to PM you earlier about it.

CFD · 04-14-2013, 12:10 PM

Had a chance to get it in the shop and check it out a bit and am pretty sure it's the stuck valve. Upon starting pressure jumps up but imediately drops, I'm going to pull the pump tomorrow if I can clear up my customer work.

litle88 · 04-14-2013, 12:56 PM

CFD hope it all turns out ok bud!!!

litle88 · 04-14-2013, 01:23 PM

CFD hope it all turns out ok bud!!!

The Blue Ox · 04-14-2013, 01:26 PM

Quote:

Originally Posted by CFD

Had a chance to get it in the shop and check it out a bit and am pretty sure it's the stuck valve. Upon starting pressure jumps up but imediately drops, I'm going to pull the pump tomorrow if I can clear up my customer work.

Hope you get everything straightened out bud, keep us updated!!

Quote:

Originally Posted by litle88

Here you go bud. Start at post 52...enjoy

http://www.camaro5.com/forums/showth...hlight=Melling

Good Job little!! Appreciate the Info!!!

CFD · 04-14-2013, 01:30 PM

Quote:

Originally Posted by litle88

CFD hope it all turns out ok bud!!!

Quote:

Originally Posted by The Blue Ox

Hope you get everything straightened out bud, keep us updated!!

Good Job little!! Appreciate the Info!!!

I'm sure it will be ok. I'm lucky it happened right in front of my shop, it's just bad timing with spring finally here, my workload is quite high this time of year.

I am curious to see exactly what the problem is where as it is quite rare in the L99's

04-14-2013, 12:56 PM	#53
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	CFD hope it all turns out ok bud!!! __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

04-14-2013, 01:23 PM	#54
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	CFD hope it all turns out ok bud!!! __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

04-14-2013, 08:08 AM	#46
POS Dakota Drives: GMs and Chryslers Join Date: Nov 2012 Location: Detroit Posts: 367 View My Garage	What is the difference in materials used between the stocker and the melling? Are there powder metal gears in the stocker and machined steel gears in the melling? Anyone look at their old failed pump to see what physically happened?

04-14-2013, 12:10 PM	#52
CFD Drives: 2SS/RS L99 BLACK Join Date: Apr 2010 Location: Franklin , MA Posts: 6,696	Had a chance to get it in the shop and check it out a bit and am pretty sure it's the stuck valve. Upon starting pressure jumps up but imediately drops, I'm going to pull the pump tomorrow if I can clear up my customer work.