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More 530 inj. pump questions

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GARY B.

11-25-2001 11:25:31




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I took the suggestion of removing an injector and attaching the line to it to see if there's any sign of fuel at the tip when cranking. Nothing. I have a book on diesel engine and fuel system repair which has a chapter covering Stanadyne (Roosa Master) inj. pumps. For my DB model it shows two designs of end plates. An "early design" and a "late design". My end plate looks like a combination of both! Mine has just a screen at the fuel inlet. No pressure reg. valve like a "late design" would have. At the bottom of my end plate it says OUT but has a plug like a "late design" would have. Mine has a diagonal passageway in the end plate with a 1/2 inch slotted screw. When the screw is removed I don't see a spring like I think I should according to the book. The book refers to hand priming the "early design" but doesn't explain how this is done. The machine did run before the teardown (no comments) and except for removing it, the pump hasn't been touched. Any imput would be appreciated. A local diesel repair shop (very good reputation) say's $400 - $1200 to repair this type pump. GULP!! Thanks, Gary

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tom bittner/stateline diesel injection

11-26-2001 12:34:11




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 Re: More 530 inj. pump questions in reply to GARY B., 11-25-2001 11:25:31  
hey I can rebuild that pump and warranty it for a full year for 325 dollars this includes return shipping..chech out my web site www.dieselstateline.com tom 1 507 329 3221



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John M

11-25-2001 20:35:46




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 Re: More 530 inj. pump questions in reply to GARY B., 11-25-2001 11:25:31  
I did run across one Roosa pump that was just plain missing press reg spring&plunger from factory.(480C,hard start&no power) Also, metering valve could be stuck due to pump sitting dry. Your diesel shop should be able to help you by #`s off ID plate.



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