530 Case injection pump help needed

VaMark · Aug 5, 2014

I have a late 60's Case 530 CK that has a seized pump and a broken shaft on the DBGFCC431-27aj pump.
Where can I purchase repair parts or get this thing rebuilt without breaking the bank? I know it's not cheap to work on these things but I mainly use it to open my driveway during big snows and digging a few holes or lifting something.
The reason it locked is my own fault, I ran biodiesel in it and did not run it out in time to keep it from going bad... bad idea, no more biodiesel for me!
I am going to drain and flush the entire system and replace fuel filters before installing new pump.

Thanks for any help you may have to offer.
Mark

JDemaris · Aug 6, 2014

Cheapest way out is probably to find another DB431 pump if you can get cheap and use the head & rotor out of it. Need not be from a Case. Like from a Deere 400, 401, 410, 440 skidder, 450 crawler, Lanz 710 farm tractor, 2010, 2020, 2030,2510,2520,3020, 430 combine, 530 combine, 4400 combine, 880 windrower, etc. Also from a Case 580CK. Several Allis Chalmers engines too.

AJ. · Aug 6, 2014

The sensible thing to do is take the pump to a fuel injection shop for repair,they will replace the bits needed,reseal it and set it up properly,it will cost a few bucks but would be cheaper than a block should you assemble something wrong and have a run-away putting a rod through the block.
AJ

JDemaris · Aug 6, 2014

It's not a matter of installing "bits" in a pump
like his that has a ruined head & rotor assembly.
Probably talking over $1000 since all the major
parts are ruined and unrepairable.

There are many ways a person can ruin an engine.
The rotary injection pump is no more complicated
then some carburetors or hydraulic pumps. It just a
matter of who can do what, and if the proper
information is on hand when doing the work.

VaMark · Aug 6, 2014

I have full confidence in my ability and am not intimidated by this pump, I have been doing industrial maintenance work for 20+ years and have repaired things of this nature. I have rebuilt manual and automatic transmissions etc and tinkered with old tractors and heavy equipment for 20+ years.

I have found a couple DB431 and JDB431 pumps on Ebay that are rebuilt for around $650, might end up buying one of them and building a good one if it will work.

I also have another fellow checking on parts from another forum, he will let me know when he gets back from vacation what he has.

530 Case injection pump help needed

VaMark

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JDemaris

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AJ.

Well-known Member

JDemaris

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VaMark

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