 Shadek oil pump groove. |
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| tach |
 Nov 3 2014, 08:13 PM
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#1
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Member  Group: Members Posts: 79 Joined: 6-November 09 From: Minnesota Member No.: 11,016 Region Association: Upper MidWest  |
Does anybody know what the groove dimensions are on a Shadek oil pump grooved for a O-ring. Groove width and groove depth.
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| McMark |
Nov 3 2014, 10:57 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Never seen one grooved.
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| PotterPorsche |
Nov 4 2014, 08:27 AM
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#3
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Member Group: Members Posts: 295 Joined: 10-November 13 From: Hayward CA Member No.: 16,628 Region Association: None |
Gene Berg enterprises was the first to do this. It was for a type 1 case. I dont know if type 4 case is exactly the same case width.
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| Mark Henry |
Nov 4 2014, 09:01 AM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I do it on all my T1 Full Flow performance pumps.
I can't/won't give you a groove dimension as you have to measure your O'ring, but I will give you these pointers. The big one is you only want about .010-.015 sticking up or the O-ring will tear on install. You also have to deburr the case inlet and outlet holes or that will tear it as well. You want a thin O-ring that is a hair small so it sits real tight in the groove. I use DOW55 O-ring lube (ebay $30 tube or you might try a scuba shop for a dab) when installing the pump, it prevents tearing and swells the O-ring after install. The T4 is harder to do, you have to check all the dimensions and be sure where the O-ring will sit when finished, I usually only do this with the engine apart. I got a bunch of O-rings from Berg years ago, I only have a couple left. I thought I once posted this mod but I can't find it. Note you can not do this to a T4 pump. |
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