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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

Oliver Cummins project

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09-15-2020 06:13:22

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Everyone, I have an early dodges 12v cummins I am putting into a 1750 Oliver. The question is do i need to change the injection pump or modify it? Tractor will be used for mowing, raking and general farm yard work.

What else do I need to know ?

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09-15-2020 08:27:28

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 Re: Oliver Cummins project in reply to ml44special, 09-15-2020 06:13:22  
I have the bell housing, tub, and everything already done, Just need to do front motor mount and adjust pump or replace it to ensure proper operation.

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09-15-2020 08:18:26

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 Re: Oliver Cummins project in reply to ml44special, 09-15-2020 06:13:22  
The Bosch VE pump will work as is but governor response will be on the sluggish side, unless the main governor spring is replaced. The stock spring is about 15 % regulation, most tractors are 8-10 % regulation range. Not really an issue for light load use, but for heavy full load use the engine will drop about 300 RPM. Tractors on average drop 175-200 RPM no load to full load.

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09-15-2020 08:47:17

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 Re: Oliver Cummins project in reply to Dieseltech, 09-15-2020 08:18:26  
There is a P3000 Cummins 5.9 injection pump for sale locally, off an industrial application, would I be better off purchasing it and switching injection pump?

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09-15-2020 13:18:19

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 Re: Oliver Cummins project in reply to ml44special, 09-15-2020 08:47:17  
Exactly what pump do you have now? I assumed a VE rotary as you said early Dodge. If you have a P7100 then you need a P7100 with the AG Bosch RSV governor. The VE and P7100 do not interchange as timing covers and pump drive gears are different.

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09-15-2020 06:33:18

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 Re: Oliver Cummins project in reply to ml44special, 09-15-2020 06:13:22  
Get ahold of Maibach tractor in Ohio. They are the guys to talk to about cummins swaps. I believe pump settings will have to be changed along with governor. I think you can use your 1750 tub with alot of modifications but a 1850 diesel tub is preferred. Bellhousing and clutch parts. Like I say those guys will know what you need.

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