David Bradly 1200 injector pump

Anonymous-0 · Sep 23, 2012

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?

RGMartin · Sep 23, 2012

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.

Anonymous-0 · Sep 24, 2012

Yes it’s a David Brown, apparently I’m easily confused when the tractor is not painted blue.
The pump didn’t look to bad inside, I have seen worse on the Majors and made them work. I’m assuming the pumps are the same but I just didn’t want to fid out different after I broke something. I think I’ll soak it down with some penetrating oil and get a little more aggressive with it.

Pat

RGMartin · Sep 24, 2012

(quoted from post at 12:46:48 09/24/12) Yes it’s a David Brown, apparently I’m easily confused when the tractor is not painted blue.
The pump didn’t look to bad inside, I have seen worse on the Majors and made them work. I’m assuming the pumps are the same but I just didn’t want to fid out different after I broke something. I think I’ll soak it down with some penetrating oil and get a little more aggressive with it.

Pat

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.

Bear Creek Majors · Oct 1, 2012

(quoted from post at 17:46:48 09/24/12) Yes it’s a David Brown, apparently I’m easily confused when the tractor is not painted blue.
The pump didn’t look to bad inside, I have seen worse on the Majors and made them work. I’m assuming the pumps are the same but I just didn’t want to fid out different after I broke something. I think I’ll soak it down with some penetrating oil and get a little more aggressive with it.

Pat

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.

David Bradly 1200 injector pump

Anonymous-0

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RGMartin

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Anonymous-0

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RGMartin

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Bear Creek Majors

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