Author Topic: Rebuilding a Detroit Fuel Pump  (Read 771 times)

Offline brianzero

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Rebuilding a Detroit Fuel Pump
« on: October 25, 2019, 11:13:32 AM »
Has anyone had any luck rebuilding a Detroit fuel pump or tried to rebuild it and failed? Mine is leaking, and before I replace it, I'd like to hear if anyone's rebuilt one? How hard could it be? Gaskets and o'rings?

Offline Geoff

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Re: Rebuilding a Detroit Fuel Pump
« Reply #1 on: October 25, 2019, 01:00:35 PM »
I rebuild DD fuel pumps, but I have the special tool to R&R the seals without damaging them.
Geoff
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Offline chessie4905

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Re: Rebuilding a Detroit Fuel Pump
« Reply #2 on: October 25, 2019, 04:51:18 PM »
Just get a new one and the ear drive piece. It's not like they are that expensive.
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Offline Geoff

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Re: Rebuilding a Detroit Fuel Pump
« Reply #3 on: October 25, 2019, 05:38:09 PM »
Just get a new one and the ear drive piece. It's not like they are that expensive.

In the 80's, rebuilt fuel pumps were under $50.  I think the price  now is 3-4 times that.  Supply and demand.  I do them for $50.  Forks are usually okay.  Good luck!!
Geoff
'82 RTS AZ

Offline brianzero

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Re: Rebuilding a Detroit Fuel Pump
« Reply #4 on: October 25, 2019, 07:15:33 PM »
You all know how all these old american rigs are built, to be serviced and not just disposable like all the chinese garbage flooding the market. I do get pleasure out of fixing stuff still, until my hands no longer work, ill keep doing it. If figured that fuel pump should be easy to fix. Ill try to find an exploded view in one of my manuals.

Online luvrbus

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Re: Rebuilding a Detroit Fuel Pump
« Reply #5 on: October 25, 2019, 07:30:14 PM »
Kits for a Detroit pump from a DD dealer are around $140.00 you can buy the cheap after market kits for around $80.00 you need the right tools to rebuild one it's not a slam dunk
Life is short drink the good wine first

Offline brianzero

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Re: Rebuilding a Detroit Fuel Pump
« Reply #6 on: October 26, 2019, 10:04:48 AM »
Kits for a Detroit pump from a DD dealer are around $140.00 you can buy the cheap after market kits for around $80.00 you need the right tools to rebuild one it's not a slam dunk

The fuel pumps I see are either right or left spinning. Which ones are we all using for the 6v92's? I see em on ebay for $150 or so.

Online luvrbus

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Re: Rebuilding a Detroit Fuel Pump
« Reply #7 on: October 26, 2019, 12:24:41 PM »
The L and R is for suction location they all turn to the right
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Offline Geoff

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Re: Rebuilding a Detroit Fuel Pump
« Reply #8 on: October 26, 2019, 12:36:12 PM »
All the ones we use are LH, it is stamped on the front of the fuel pump.
Geoff
'82 RTS AZ

Online luvrbus

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Re: Rebuilding a Detroit Fuel Pump
« Reply #9 on: October 26, 2019, 04:39:07 PM »
I never rebuild a pump when I replace it I always replace it with the high volume pump for a 8v92 DDEC engine even on a 6v92 or 8v71
Life is short drink the good wine first

Offline Dave5Cs

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Re: Rebuilding a Detroit Fuel Pump
« Reply #10 on: October 27, 2019, 11:53:19 AM »
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
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Offline freds

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Re: Rebuilding a Detroit Fuel Pump
« Reply #11 on: October 27, 2019, 04:23:06 PM »
These guys have them 109.00 to 152.00 :)

https://dieselpro.com/detroit-diesel-parts/6v92-engine/fuel-pumps.html

Once you get a part number, check Amazon.

I need a diesel lift pump for my Kohler/Perkins generator and ordered from the diesel source for $80.00 and once I received it and had the part number I could have gotten it for $35.00 from Amazon.