Priming LT1 Oil Pump
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Priming LT1 Oil Pump (STL94LT1)
Use an oil pump tool. I have one by Moroso I got from Summit Racing. It is basically a long drill bit drive shaft you put into the top of the oil pump and run a drill to spin the pump. You have to do this before installing the intake to the engine.
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: Priming LT1 Oil Pump (Robey5)
Huh, I did not think that you had to prime these prior to installation, but I am far, far away from that concern as of right now. What happens if you don't do this?
[Modified by Glock'94, 4:20 PM 7/17/2002]
Melting Slicks
Joined: Oct 2000
Posts: 2,726
Likes: 24
From: Freehold, NJ
Re: Priming LT1 Oil Pump (Robey5)
Oil starvation could lead to spun bearings. May not happen on a rebuild because you are protected by the assembly lube. But it did happen to me when I put the hot cam in. I put the hot cam in, failed to prime the oil pump and 10 miles later the rod bearings run spun.
To do it right you need the correct tool (don't just use a socket attached to your drill). The tool seals off the galleys in the distributor. If they are not sealed off most of the oil will bypass through those galleys.
To do it right you need the correct tool (don't just use a socket attached to your drill). The tool seals off the galleys in the distributor. If they are not sealed off most of the oil will bypass through those galleys.
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: Priming LT1 Oil Pump (Eric Fischer)
AZone has a pump primer rod as a loaner.
Make sure your drill is spinning clockwise.
Spin it till oil comes out the push rods.
[Modified by ZylaRace, 9:07 AM 7/18/2002]
Make sure your drill is spinning clockwise.
Spin it till oil comes out the push rods.
[Modified by ZylaRace, 9:07 AM 7/18/2002]
Pro
Joined: Apr 2000
Posts: 621
Likes: 1
From: Clarkston Mi
Re: Priming LT1 Oil Pump (Eric Fischer)
Huh...OK. I would not have done that had I not known. I will see if I can borrow dads, after he re did his 911 C4 motor...but I don't remember him doing that...
Can I get one of these at A-Zone?
Can I get one of these at A-Zone?
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Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Priming LT1 Oil Pump (Robey5)
I have never primed the pump when just changing cams (and I have done several). But ALWAYS do it when the pump is new or the engine has not been fired before.
Part number MOR-62200, $13.95 from Summit Racing is the oil primer I used.
Chris
Part number MOR-62200, $13.95 from Summit Racing is the oil primer I used.
Chris
Melting Slicks
Joined: Oct 2000
Posts: 2,726
Likes: 24
From: Freehold, NJ
Re: Priming LT1 Oil Pump (Vette92)
I have never primed the pump when just changing cams (and I have done several).
Chris
Chris
