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Oil Pump picture

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Dick L

12-09-2001 12:38:54

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I opened up 4 pumps to take pictures of different conditions.
At the bottom of the picture is a pump out of a tractor that has been setting out side a long while. I have found several like this and they will turn but will not pump oil.
The picture of the pump with the feeler gage shows how you mesure the .001 to .003 clearance called out in the manuals. If you can get much more than .003 under the streight edge you will want to remove material from the surface that the streight edge is sitting on.
In picture 2, the pump at the top left only needed cleaned up and would not have needed taken apart. The pump to the right looks to be in good shape but I only took the cover off. The pump at the top happens to be one that looked like the one at the bottom.

pix 2

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BamaDee

12-09-2001 13:45:14

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Re: Oil Pump picture in reply to Dick L, 12-09-2001 12:38:54

Once again, nice camera work Dick L. Was it water in the pan or acid corrosion that ate the rotor ?

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Dick L

12-09-2001 15:37:01

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Re: Re: Oil Pump picture in reply to BamaDee, 12-09-2001 13:45:14

No idea what all history is behind these old fence row tractors. Bout all have water in the pan if they still have a pan on them. I have not cleaned that one up, but most that look like that, the rotor can be saved. The blade springs will be shot. The blades them selves can sometimes be stoned and used. What you see is a rusty oily paste like gunk. The rotor will have pits, if they are not to deep on the top and bottom they can be resurfaced in a spin index or lathe. The outside diameter of the rotor has no function that the pits would give a problem. I would never rebuild one in this condition but it could be done.

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David Pozzi

12-13-2001 09:27:28

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Re: Re: Re: Oil Pump picture in reply to Dick L, 12-09-2001 15:37:01

I'm getting into the oil system of my AC "B".
It turns out from reading posts here that the spin on type oil filter tube that pokes inside my oil filter has been lost, and that is the cause of trouble with low oil pressure readings.
Since I can't find a replacement easily, I'm going to make a new tube on my lathe.
I don't have the ID restriction of the tube or the length of the tube.
Can you please post the dimensions of the tube for me if you can? If nothing else, just the ID restriction will do.

I'm going to start making it very soon and will drill the hole in the end of it last. I have to do a clutch job on it and lucklily I checked here on the low oil press problem first. I'll probably check my pump too. I want to fix the filter tube first, start it and check pressure, then split the tractor and check out the pump, do the clutch job and reassemble.
Any good sources for parts if I need them?
We have been using this tractor for many many years on our Strawberry farm in California.
Thanks, David

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Dick L

12-13-2001 11:51:48

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Re: Re: Re: Re: Oil Pump picture in reply to David Pozzi, 12-13-2001 09:27:28

If you want to save some time on the oil filter tube you can use a piece of break tubing. Knerll the bottom part that goes in to the body and use a couple drops of loctite. Use a dull tubeing cutter for the top and don't ream the top hole.
I am at the factory now but will get you a length some time tonight. I seem to get my best prices from Roger VanCamp and Sandy Lake Implement.

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David Pozzi

12-13-2001 13:07:33

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Re: Re: Re: Re: Re: Oil Pump picture in reply to Dick L, 12-13-2001 11:51:48

Thanks for the quick reply. I will rough out the tube on my lathe this afternoon. I'm guessing the ID needed should be 1/16"?
I'm going to put that size hole in it and see how the oil pressure guage reads.
I'm going to make the tube about 3.25" long from the gasket surface, I think the OD should be about 1/4".
If you have an origonal, I'd appreciate the proper ID hole size, OD, and length from where the tube seats to end.
This is a neat little tractor I have spent many many hours driving on our farm. My wife now uses it for harrowing here horse arena. Our Mexican foreman borrows it occasionally for doing furrows in our strawberries and asks if he can borrow the "Tractor you wife". We have taken to calling it the "Tractor you wife", kinda cute!
We still use farmall H, C, 200, A, 100 tractors on our farm. They just won't DIE!
Thanks for your help. David

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David Pozzi

12-13-2001 16:07:53

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Re: Re: Re: Re: Re: Re: Oil Pump picture in reply to David Pozzi, 12-13-2001 13:07:33

I finished the tube. I made it .6 OD where it seats on the housing, it sticks into the housing a half inch, it's .250"OD sticking up 3.25" from where it seats.
I drilled most of it at 1/8" and the last bit at 1/16".
I'll try it out tomorrow and see if the oil pressure is better.
If your ID dimension is larger, I can drill it out more on the tractor.
Thanks, David

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David Pozzi

12-15-2001 22:00:31

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Re: Re: Re: Re: Re: Re: Re: Oil Pump picture in reply to David Pozzi, 12-13-2001 16:07:53

I got the tractor running and oil pressure is now in the middle of NORMAL!!! :)
Thanks, David

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Dick L

12-13-2001 18:17:41

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Re: Re: Re: Re: Re: Re: Re: Oil Pump picture in reply to David Pozzi, 12-13-2001 16:07:53

It is 1/4" OD tubeing. It is 3 3/4" long (above the extended base) The hole in the top is .118 Dia. 1/4" down from the top is the center of a hole .085" drilled through both sides.

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David pozzi

12-13-2001 19:34:29

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Re: Re: Re: Re: Re: Re: Re: Re: Oil Pump picture in reply to Dick L, 12-13-2001 18:17:41

Thanks! I kinda thought there might be a cross hole.
David

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