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Case Tractors Discussion Forum

David Bradly 1200 injector pump

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Bear Creek Majors

09-23-2012 13:48:10

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A friend of mine just picked up a 1200, he got it to run but it runs full throttle and he has to block off the intake to shut it down. I pulled the cover off of the injector pump and found the rack not moving back and forth. The shaft itself seems loose as it wiggles around in the pump, just not sure if the plunger screws are tight or if something in the governor end is holding it tight. Any suggestions?

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Bear Creek Majors

10-01-2012 10:32:10

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 Re: David Bradly 1200 injector pump in reply to Adirondack case guy, 09-23-2012 13:48:10  
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Got it loose yesterday, took the endcap off the rod at the back of the pump, gave it a few light taps with a hammer and it started to move. had to work it backand forth for quite a while but it eventualy loosened up real good. The fuel was old and stale and the battery was crap, but we got it running and seems to run and start OK now.

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09-24-2012 10:24:06

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 Re: David Bradly 1200 injector pump in reply to Dave SE Mich, 09-23-2012 13:48:10  
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Nothing special about the pumps as far as I know. My local diesel shop hasn't had any issue getting SIMMS/Minnimec parts when repairs were beyond me. I believe it to be very similar to the one on 5000 Fords, aside from being backwards.

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Bear Creek Majors

09-24-2012 09:46:48

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 Re: David Bradly 1200 injector pump in reply to Bear Creek Majors, 09-23-2012 13:48:10  
Yes itís a David Brown, apparently Iím easily confused when the tractor is not painted blue.
The pump didnít look to bad inside, I have seen worse on the Majors and made them work. Iím assuming the pumps are the same but I just didnít want to fid out different after I broke something. I think Iíll soak it down with some penetrating oil and get a little more aggressive with it.


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09-23-2012 14:52:55

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 Re: David Bradly 1200 injector pump in reply to Bear Creek Majors, 09-23-2012 13:48:10  
David Brown perhaps?

Was there any oil in the pump, or anything that vaguely resembles oil?

You can use a screwdriver to work the rack back and forth, might just be stuck from lack of maintenance, and sitting.
This post was edited by RGMartin at 14:54:13 09/23/12.

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