The Ford Barn

Model A Fan · 05-01-2012, 02:44 AM

I am restoring the oil pump from my truck's engine and its corroded and kind of rusty on the outside. I have cleaned it up with solvent and a wire wheel on my bench grinder.

When refurbishing them, do you paint them or finish the outside with anything? I want to prevent it from developing surface rust while I work on more of the engine.

Thanks.

Mike V. Florida · 05-01-2012, 03:05 AM

Coat it in oil and wrap it in newspaper. That should last until you're ready.

BRENT in 10-uh-C · 05-01-2012, 07:38 AM

Just curious, what are you doing to the inside? The key to these functioning properly is to have the proper backlash in the two gears, to have the lower plate free of any scoring (which would allow oil to bypass) and for proper bushing to shaft clearance (again, allows oil to bypass thus limiting the speed and volume of oil transfered). A good quality rebuild kit will take care of the first one, either lapping the plate or flipping it over will take care of the second one, but the third really needs to have the bushings installed and then honed with a stone/mandrel long enough to do both of them simultaniously. This is something a local automotive machine shop can handle for you unless you are so equipped to do so in your garage.

.

d.j. moordigian · 05-01-2012, 09:56 AM

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Brent,

There is a 4th....the gear to housing clearance. IF the housing is worn from
the gear or scored from trash run threw the pump...it will bypass. What is the
clearance between the housing and the gear...good question? I would think no
more than .002"....maybe .003".

05-01-2012, 02:44 AM	#1
Model A Fan Senior Member Join Date: May 2010 Location: Bellingham, Washington Posts: 362	Oil Pump Refurbishment I am restoring the oil pump from my truck's engine and its corroded and kind of rusty on the outside. I have cleaned it up with solvent and a wire wheel on my bench grinder. When refurbishing them, do you paint them or finish the outside with anything? I want to prevent it from developing surface rust while I work on more of the engine. Thanks.

05-01-2012, 03:05 AM	#2
Mike V. Florida Senior Member Join Date: May 2010 Location: Florida between Sarasota and TampaSouth Florida Posts: 14,054	Re: Oil Pump Refurbishment Coat it in oil and wrap it in newspaper. That should last until you're ready. __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

05-01-2012, 07:38 AM	#3
BRENT in 10-uh-C Senior Member Join Date: May 2010 Location: Eastern Tennessee Posts: 11,972	Re: Oil Pump Refurbishment Just curious, what are you doing to the inside? The key to these functioning properly is to have the proper backlash in the two gears, to have the lower plate free of any scoring (which would allow oil to bypass) and for proper bushing to shaft clearance (again, allows oil to bypass thus limiting the speed and volume of oil transfered). A good quality rebuild kit will take care of the first one, either lapping the plate or flipping it over will take care of the second one, but the third really needs to have the bushings installed and then honed with a stone/mandrel long enough to do both of them simultaniously. This is something a local automotive machine shop can handle for you unless you are so equipped to do so in your garage. . __________________ . BRENT in 10-uh-C . www.model-a-ford.com ...(...Finally Updated!! ) .

05-01-2012, 09:56 AM	#4
d.j. moordigian Senior Member Join Date: May 2010 Location: Fresno, Ca. Posts: 3,636	Re: Oil Pump Refurbishment Sponsored Links (Register now to hide all advertisements) Brent, There is a 4th....the gear to housing clearance. IF the housing is worn from the gear or scored from trash run threw the pump...it will bypass. What is the clearance between the housing and the gear...good question? I would think no more than .002"....maybe .003".