[AT] Injection pump rebuild

[Cecil R Bearden]

I found the JD manual which denotes the pumps of that style, on a site  
www.SCRIBD.com
US diesel in FT-Worth, Or SE power systems at www.diesel-plus.com for parts.
If you find the injection pump manual for the case let me know.  I have 
not really looked but I have the service manuals from the factory for my 
930 and 1150 and 2470 case machines.

Cecil in OKla


On 7/27/2014 6:30 PM, Ken Knierim wrote:
> Cecil
>      A big congratulations to you!
>      I'll have to pass this along to my Dad who's got an old Massey
> Ferguson/Minneapolis with a dead Roosa Master injection pump on it. I've
> got to work out some of the same things for an old Case 400 with a rotary
> Bosch IP that needs some help. The fact you've been able to figure one out
> means it's POSSIBLE. As you've noted, there are flow benches and folks
> generally charge big bucks for that work.
>      I've always wondered how tough it is... they had to be put together and
> serviced by humans so there has to be SOME leeway. I fought the learning
> curve on a Ford FMX automatic transmission many moons ago and having a
> transmission wizard to ask saved my bacon.... there was that ONE nineteen
> cent part that got me.
>
> Ken in AZ
>
>
> On Sun, Jul 27, 2014 at 3:31 PM, Cecil R Bearden <crbearden at copper.net>
> wrote:
>
>>> My JD 2270 swather was built in early to mid 70's.    I bought itabout
>>> 3 months ago locally and spent a lot of time and about $1000 of parts
>>> to get it back into shape.  When I bought it the PO said that the inj.
>>> pump would plug with some little pieces of rubber at times and he
>>> would just clean it out.  It would plug in the check valve in the top
>>> cover of the Roosa Master pump.   I did not remember what this symptom
>>> was at the time, but a week or so later, it came to me.  The Governor
>>> drive ring in the pump  is made of 2 pieces with a rubber gasket like
>>> piece that fits over some rivets on each piece to drive the governor.
>>> Low Sulfur diesel and the new additives in fuel now tends to eat on
>>> the rubber.  A new one made of polyethylene or ?? is the replacement.
>>> I found a forum discussion about injection pumps on the tractor by net
>>> forum ( I think) and got a email address for US Diesel who supplies
>>> the parts.  There is a replacement governor ring that is solid, so I
>>> ordered it.  A swather runs at a constant speed, so it would not need
>>> a cushion between those plates.  I also ordered the seal kit and a bit
>>> to remove the timing screw that is special to JD.  I put the parts up
>>> and bought 2 repair manuals on the pump. one from IHC and the other
>>> from ALLis.  2 days ago I started in the field and the swather cut
>>> great, and traveled about 7 mph cutting 3-4 ft tall Johnson Grass,
>>> clover and prairie grass mixed.  Great!!  Got to the end of a 3/8 mile
>>> run and turned around to go back.  After about 250 ft, it began to run
>>> down like it was out of fuel.  I worked with it for about an hour in
>>> 105 deg heat.  It would run for about 45 seconds then just run down
>>> until it died.  I opened up the pump and tied the shut off solenoid
>>> with a wire to determine if that was the problem.  Same thing.  I made
>>> a call to a diesel shop where I know the owner, and he said the
>>> governor ring was shot.  He also said if I would take off the fitting
>>> in the tip cover and let some fuel spill I could get it back home.  I
>>> did, and got it home.
>> I dug out my parts and searched for the manuals.  I could not find
>> them.  I found a site on the internet where I could download the JD
>> repair manual for the pump for $9 for the next 24hrs.  I got it and
>> pulled the pump off and started working on the rebuild.  A lot of the
>> parts included in the seal kit were just like a carb kit, you don't use
>> all of them.  This morning I installed the pump and with a little work
>> on getting the air bled, it worked great!   If I had wanted to go back
>> together with the original type of governor ring, I would have only
>> needed the seal kit.  $14 + shipping and the $12 bit to take out the
>> timing screw.   As it turned out, I spent $85 on parts, and 5 hours on
>> the overhaul, and it Works!!    Injection pumps have been such a mystery
>> around here, there were never any books available and no parts.  It was
>> always $500 to get one thru a shop no matter what the problem was.  I
>> have a White 2-105 that has had the pump worked on 3 times because the
>> top cover will leak after about 3 years.  $450 each time.  The same $14
>> seal kit fits that pump........    Pump shops make those of us with the
>> old equipment pay for their new test stands for the new stuff.........
>> I had checked with the local pump shop here, and to rebuild this pump
>> would have cost a minimum of $450 + parts.
>>
>> Just had to share this small victory.   I have wanted to be able to
>> repair my inj pumps for years, finally it happened.
>>
>> Cecil in oKla
>>
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