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Oil Pump Removal
https://slantsix.org/forum/viewtopic.php?t=17669		 Page 1 of 1
Author:  Tom P. [ Sun May 21, 2006 6:51 am ]
Post subject:  Oil Pump Removal
Just did a complete rebuild, car ran great but I noticed a little oil on the garage floor. Oil pump gasket leaking about 1 drop 1-2 minutes from block /pump gasket. So I go to service manual - no problem - yea right! Lifted motor did the 8" 2x4 for about 6 hours then discovered that my Clifford shorties were wedged against PS unit. Now off comes the Exhaust and Intake. Any Ideas??
Thanks
Tom
Author:  Doctor Dodge [ Sun May 21, 2006 8:24 am ]
Post subject: 
There is a problem with some of the "5 bolt" oil pump casting where they do not match the supplied gasket / engine block mounting boss.
(replacement oil pumps made by Dyna-gear have this problem)
The mis-match is on the suction side, where the pump meets the oil pick-up tube pocket in the block.

My solution to this is to glue-in a small piece of additional gasket material to get the proper seal. you can most likely do this by unbolting and pulling the pump back & away from the block by a few inches and slipping in the additional piece of gasket material.

If you need a photo showing the area and the "fix", let me know.
DD
Author:  Tom P. [ Sun May 21, 2006 4:41 pm ]
Post subject: 
Thanks Doc,
Ye4a this is a 5 bolt pump I went to local Mopar dealer & ordered 3 pump gaskets overnited from Detroit Not even close. Any Idea what the gasket P/N would be for my 6 - 65 vintage? Pics would be nice TJP746@AOL.COM
Thanks
Tom
Author:  Doctor Dodge [ Sun May 21, 2006 9:21 pm ]
Post subject: 
All the gaskets are cut the same so don't waste time looking for that "special" gasket.
I cut a small wedge of gasket material and glue it down in the area below the line I drew in the close-up shot below. I cut the gasket material from the "6th hole" area that is not used by the 5 hole pump.

The blacked-out area shown is the place where the casting is different on some of the 5-hole pumps and you can see a small "gap" where there is no flat area on the pump, needed to compress the gasket to make a seal.
( the pump manufacturer should correct their casting pattern to fix this)

Image

Glue in a small section of gasket material below the line to complete the seal.
DD
Image
Author:  dakight [ Mon May 22, 2006 5:07 am ]
Post subject: 
Just one more reason I've decided to reuse my original oil pump!
Author:  VDART [ Mon May 22, 2006 10:37 am ]
Post subject:  oil pump
doc thanks again for a great explaination & visuals
Author:  Tom P. [ Mon May 22, 2006 7:17 pm ]
Post subject: 
Wow,
Thanks Doc appreciate it so much. The pics really help. Will get to it tomorrow nite.
Again Thanks
Tom
Author:  kielbasa [ Wed Sep 21, 2011 7:28 pm ]
Post subject: 
does this apply to melling pumps? i looked long and hard, and cant find any reason why my gasket wont seal on my 5 hole melling.
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