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Discussion Forum

case 580c backhoe injector pump

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oldcaseguitar

03-17-2011 14:58:13
24.23.2.77



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I need to rebuild the injector pump on my case 580c. Any help or guidance would be appreciated.




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Jerry Pelchat

04-13-2011 19:22:50
75.119.250.106



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 Re: case 580c backhoe injector pump in reply to oldcaseguitar, 03-17-2011 14:58:13  
Hello... I've got a 580C as well...I was running it home last winter and suddenly started to lose power... barely made it back like a lame duck...I checked fuel, new filters, return line clear, etc...I couldn't get it to rev up...just idle...anyways, I ended up removing pump which was a bit_h to get back stud nut off... I went to pour fuel out from inside pump shaft and a bunch of small black pieces of hard plastic came out... you mention "flex-ring" and I am thinking that is my problem...plugging up fuel passages...what do u think?...big job to replace? and recommendations?... ie rebuild kit?... thanks for feedback

Jerry

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mite-help

03-18-2011 16:18:23
75.222.49.66



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 Re: case 580c backhoe injector pump in reply to oldcaseguitar, 03-17-2011 14:58:13  
Is this the standyne/roosa master pump? I have done several with success. look in archives here, info & posts from "j.D." sure helped me. He is boss on these things, but haven't seen him post here in a while--get a special tool to remove cam advance ball stud on bottom of pump- pump shop can order one. I tried to make one, broke the stud-than I had real problems! called a bristol bit I think--available online also. most failures is broken up flex-ring" stopping things up--no rpm-- good luck--paul

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oldcaseguitar

03-18-2011 19:35:10
24.23.2.77



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 Re: case 580c backhoe injector pump in reply to mite-help, 03-18-2011 16:18:23  
Thanks so much Paul. I will look up your referenced info. It is a stanadyne pump, and I'm pretty sure it's the flex ring that's gone bad. Just an additional note in case you do another one-- I spoke to a supplier today who has a seal rebuild kit that has a steel surrounded rubber ring to replace the plastic flexring. The idea being that the steel surround will contain the rubber should it ever go bad. Thanks again, Rick

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Adirondack case guy

03-17-2011 15:50:34
67.252.92.228



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 Re: case 580c backhoe injector pump in reply to oldcaseguitar, 03-17-2011 14:58:13  
What are you doing, just fixin a leaky throttle shaft?



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oldcaseguitar

03-17-2011 15:50:22
24.23.2.77



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 Re: case 580c backhoe injector pump in reply to Adirondack case guy, 03-17-2011 15:50:34  
No leaks. It just won't throttle up. Starts and idles fine.



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Injection pump

03-17-2011 15:10:13
68.149.56.30



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 Re: case 580c backhoe injector pump in reply to oldcaseguitar, 03-17-2011 14:58:13  
Unless you really know what you're doing, take it a to shop that specializes in them.



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oldcaseguitar

03-17-2011 15:12:54
24.23.2.77



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 Re: case 580c backhoe injector pump in reply to Injection pump, 03-17-2011 15:10:13  
I'm thinkin' I'll take my chances with a $50 rebuild kit. If it doesn't work out for me then I'll let a shop rebuild it. Prices I'm getting are about $800 +-



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indyguy

03-17-2011 16:06:25
63.238.232.227



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 Re: case 580c backhoe injector pump in reply to oldcaseguitar, 03-17-2011 15:12:54  
are you willing to risk your engine by having a run away? If you have no experience with injector pumps and how they operate hire someone who does.



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