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Rod Mitchell 
Bronze Level
Joined: 04 Nov 2021
Location: Arizona
Points: 7
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 Topic: HD 4 Injection Pump
Posted: 11 Nov 2021 at 12:43pm |
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Hello, I'm new to the forum but have owned my HD-4 for 30 years and it has been good to me. I believe that I've read through past forum discussions that might relate to my question but appologize if I missed something. I'm in the market for a replacement IP (DBG FC437 7AF) and am unable to locate one. Can anyone tell me if I could use a DBG FC427 pump, which I can find? I understand that I would get less fuel to the injectors but could I compensate for this by metering valve or torque adjustment? Any leads on a used IP DBG FC437 7AF would also be appreciated. Thanks for any help.
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Fred in Pa
Orange Level
Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210
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Posted: 12 Nov 2021 at 6:31am |
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Spencer Diesel
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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Rod Mitchell
Bronze Level
Joined: 04 Nov 2021
Location: Arizona
Points: 7
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Posted: 14 Nov 2021 at 11:39am |
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Thank you. Good lead.
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kendrick84
Bronze Level
Joined: 13 Jan 2022
Location: spokane wa
Points: 1
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Posted: 13 Jan 2022 at 9:42pm |
I got mine rebeult at Advanced diesel here in Spokane,wa (509) 535-0336 they have pumps shipped to them from all over I have done business with them for years they are fast and good
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DiyDave
Orange Level Access
Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 51741
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Posted: 14 Jan 2022 at 4:03am |
Be wary of the one post recommendations, Not saying he is a spammer, just not sure... 
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Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
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DrAllis
Orange Level Access
Joined: 12 Sep 2009
Points: 20562
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Posted: 14 Jan 2022 at 8:39am |
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To purchase the WRONG injection pump you are going to spend "X" amount of $$$$$$, and screw around trying to make it equal to a correct pump. Why don't you just have your correct pump freshened up for a "few dollars more"? (which was the title of a Clint Eastwood movie.)
Edited by DrAllis - 14 Jan 2022 at 8:39am
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Rod Mitchell
Bronze Level
Joined: 04 Nov 2021
Location: Arizona
Points: 7
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Posted: 15 Jan 2022 at 10:56am |
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Thanks DrAllis. I absolutely would not think about buying the "wrong" pump if I could find the "right" one for sale. My rotor was seized up completely and the 10 or so diesel shops that I contacted could not find a replacement or parts to fix mine. Thanks to a suggestion on this forum, I contacted Spencer Diesel and they were able to find used parts and rebuild mine. They were very good to work with and I will use them again. The bottom line is my old HD 4 is back up and working and I thank all on the forum for their suggestions and comments. If I missed finding a source for my pump online , please let me know for the next project. Thanks again -- Rod
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