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 Post subject: Slant six oil pump leak
PostPosted: Sun Nov 28, 2021 1:57 pm 
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1 BBL (New)

Joined: Wed Sep 15, 2021 11:32 am
Posts: 5
Car Model: Farm Equipment
I have a 1972-73 made slant six which has a pretty steady leak out of the body of the oil pump. I have a new gasket, but the housing is REALLY stuck on there. I am afraid to break something, particularly the aluminum section between the outer cover and the block. Any suggestions to getting this done without getting out a hammer? I am hesitant on using heat, but I will do what I have to do. Any advice is appreciated


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PostPosted: Sun Nov 28, 2021 5:37 pm 
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Turbo EFI
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 1920
Location: Desoto Texas
Car Model: 1972 Dodge Colt
Are you sure the pump body is aluminum?
Most later pumps are cast iron.
I would think a sharp wrap with a dead blow should break it loose on the block.
Make sure you have all 6 bolts out.
Later pumps are 5 bolt, but older ones have 6 bolts.

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Hyper_pak


Last edited by hyper_pak on Tue Nov 30, 2021 8:27 am, edited 1 time in total.

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PostPosted: Sun Nov 28, 2021 5:45 pm 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3740
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
Be sure you get all 6 bolts removed.

First use a twisting action to break-loose the pump from the engine block.
Removing the oil filter and placing a block of wood on the filter's gasket sealing surface, then lightly strike the wooden block.
If the gasket was glued-on, rotation will likely tear the gasket in two.
Pry outward once the pump breaks free and rotates.
DD


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PostPosted: Sun Nov 28, 2021 6:21 pm 
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1 BBL (New)

Joined: Wed Sep 15, 2021 11:32 am
Posts: 5
Car Model: Farm Equipment
I'll give it a twist and a shot with a dead blow mallet. I have all the bolts out. I wonder if my unit is different since it is an industrial slant on a John Deere machine.


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PostPosted: Sun Nov 28, 2021 9:21 pm 
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TBI Slant 6
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Joined: Fri Jul 14, 2006 6:32 pm
Posts: 229
Location: Crescent City Florida
Car Model:
You may also have to jack the engine up to get it out.

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63 Plymouth Valiant Wagon


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PostPosted: Mon Nov 29, 2021 5:47 pm 
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Supercharged
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Joined: Wed Oct 12, 2005 9:00 pm
Posts: 2774
Location: kankakee IL
Car Model: 80 volare, 78 fury 2 dr, 85 D150
bcschief wrote:
You may also have to jack the engine up to get it out.

hard to say. He did say it's on a John Deere something or other.... most farm stuff I see is more wide open, than a car chassis.


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PostPosted: Wed Dec 01, 2021 6:15 pm 
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1 BBL (New)

Joined: Wed Sep 15, 2021 11:32 am
Posts: 5
Car Model: Farm Equipment
It is wide open, it can get to it no problem.


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PostPosted: Wed Dec 01, 2021 8:05 pm 
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EFI Slant 6
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Joined: Tue Aug 19, 2003 3:52 am
Posts: 263
Location: Helsinki Finland
Car Model: 1966 2D Dart
I have a NOS 6 bolt aluminium oil pump in a slant. I had cracks in the arm carrying the filter. Cracks were not visible from the new pump. I did several running cycles with brake cleaner washes in between and then followed from where the oil came out. During the preheat before MIG welding it was easier to find cracks as the smoky oil presented those cracks well. It came good enough after welding.

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1966 Dart. 170 cu.in. 200 rwhp.


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