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Case Tractors Discussion Forum

Case 400 Injection Pump

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Author  [Modern View]

06-21-2020 22:51:31

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I took the hydraulic head apart but I think a small part that goes between the retainer and the check valve in the center of the head is missing. I have the retainer that screws into the top of the head, the check valve needle and seat assembly and the spring that holds the needle down, but there must be a sleeve or something that holds the seat in place. When I tapped the plunger out the only parts that I found on the bench were the needle and seat and a brass ring that is beveled on the inside edges. Would someone have an exploded view of the hydraulic head on the PSB Injection pump they could share so I know what I'm looking for.

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Roger s

06-26-2020 20:15:13

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 Re: Case 400 Injection Pump in reply to Grabatire, 06-21-2020 22:51:31  
Is this what you are looking for? It's the breakdown of the pump. Sorry it's not clearer.

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06-24-2020 09:01:57

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 Re: Case 400 Injection Pump in reply to Grabatire, 06-21-2020 22:51:31  
All is well. I found the piece.

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06-22-2020 07:58:52

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 Re: Case 400 Injection Pump in reply to Grabatire, 06-21-2020 22:51:31  
i have the same pump off a 400 and it is siezed also and asked for pictures here too. maybe diesel tech will get some.

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06-22-2020 07:39:49

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 Re: Case 400 Injection Pump in reply to Grabatire, 06-21-2020 22:51:31  
you are gutseyer than me, I send them out to be repaired. That kind of work is a bit beyond my shade tree mechanicing skills. Wishing you well. gobble

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