Melling oil pump help
Thread Starter
Racer
Joined: Jun 2010
Posts: 360
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From: Chicago Illinois
Melling oil pump help
Ok I'm trying to install my Melling high volume oil pump but there are 2 different sized o rings for the pickup tube and I tried both but neither fit flush, I'm afraid to push on them too hard because of all the print problems please help
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The GREEN O ring is the one that you want to use. Oil it up, install it on the pick up tube and allow it to slip in the pump. Heres an example of how the O ring fits in the pump:
If the pick up tube flange fits FLAT on the pump flange and NO O ring material is being extruded, your fine.
BC
If the pick up tube flange fits FLAT on the pump flange and NO O ring material is being extruded, your fine.
BC
1st Gear
Joined: Nov 2006
Posts: 1
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Bill your my hero. I've been fighting to get the pickup tube to sit flush with the pump housing and it keep kicking out at an angle once I torque the screw down. Having a better understanding how how things mesh together your photo is invaluable!
Safety Car
Joined: Aug 2011
Posts: 4,446
Likes: 408
From: Portland OR
The green O-ring is larger (thicker) than the stock one.
From the info I found over on the LS site, the green one is for trucks.
Of course I just finished mine up, installed the balancer and now I read this.
I will say that the assembly with the black O-ring hardly fell together. It felt correct to me.
I wish I would have taken the blue pill.............
Ron
From the info I found over on the LS site, the green one is for trucks.
Of course I just finished mine up, installed the balancer and now I read this.
I will say that the assembly with the black O-ring hardly fell together. It felt correct to me.
I wish I would have taken the blue pill.............
Ron
Last edited by RonSSNova; Apr 2, 2012 at 04:13 PM.
