Anybody with Quickserve? '05 ISX Pump Disassembly

Begle1

Begle1

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Nov 18, 2007
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I'm trying to put an ISX fuel pump onto my first gen. It's a gear-to-gear pump driven by a gear on one of the cams.


I got it apart to the section that mounts to the plate and holds the drive gear and the gear's shaft. I pulled three seals out of the gear shaft bore, but now when I look in I just see the gear shaft spinning and have no idea how to take it apart from here (short of pressing on it and praying).
 
I have no idea. You can still do an "Engine Family Search", right?

'05 ISX should be a "CM870" engine family if I recall correctly. I know they went to the CM871 in '07, I think the CM870 replaced the CM570 in '02. Automotive engine.

I don't think they ever changed the transfer pump on the IFSM, they did up the rail pressures a bit in '02 though.

It used to be a real pain to get data off of Quickserve; best ways were to either take screenshots or print individual pages to PDF. If you could get any info for me I'd be thankful.
 
Begle1 said:
I have no idea. You can still do an "Engine Family Search", right?

'05 ISX should be a "CM870" engine family if I recall correctly. I know they went to the CM871 in '07, I think the CM870 replaced the CM570 in '02. Automotive engine.

I don't think they ever changed the transfer pump on the IFSM, they did up the rail pressures a bit in '02 though.

It used to be a real pain to get data off of Quickserve; best ways were to either take screenshots or print individual pages to PDF. If you could get any info for me I'd be thankful.
Click to expand...

nope it wants the ESN i cannot do family
 
Give me your email, the screen shot i have is to large to be allowed to upload it.
 
You have mail, i think i found what you where looking for, if not let me know.
 
I got your email; thanks. I got no idea what that thing is though. LOL That's one of those mini-ISX common rail thingies.

Here are pictures of what I'm dealing with.

This is the pump disassembled into the three sections. The left-most section is an end-cap that has an inlet and outlet; the middle section contains the two gears that mesh together to move the fuel; the right-most section also contains a fuel inlet and outlet and holds the gear that rides on the camshaft.

DSC02304.jpg


The drive gear connects to the pumping gears by a little hex driveshaft.

DSC02300.jpg


The big question is: How do I remove the gear from this section?

DSC02293.jpg


DSC02291.jpg


Here's the section from the rear; that shaft inside the hole has a hex cut in it for the driveshaft, and when I turn the gear the shaft moves. In other words, all I can see in that hole is the shaft that the gear is on.

DSC02295.jpg


It has to come apart somehow... Even then I don't know if it's serviceable.
 
Crap. I hacked QuickServe and they don't have any info on how to disassemble the pump.

I sure hope that doesn't mean Cummins isn't going to sell me the three internal seals I ripped out of it with a screwdriver... :bang
 
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