Vac/PS pump and INJ pump gear ?'s

[stoneagemaxx]

well after searching the forums i've been reading about the disassembly of the vac/ps pump, i have a '92 do they just unbolt to seperate the two? all i'm trying to do is replace the leaky seals and all i find is the info on the pre '91. 5 pumps, and my second question is where is the best place to find the injection pump drive gear? cummins priced it out at 170, dodge priced it out over 220w/ an employee discount, anyone know of any better deals? thanks for the help

 

[stoneagemaxx]

ok, i think if found the info on the ps/vac pump, they do just unbolt and come apart correct?

 

[sdstriper]

How about a salvage yard for the gear or (seller ID - redliner) on ebay. Or Reliablegoods online.



That pwr steering pump gear may come off the same way as the older ones do, you make a pin and run a bolt down on it to "draw" the gear off, let someone else who knows for sure confirm that, I'd hate to see you damage something if I am wrong.

 

[dpuckett]

The vac pump gears are different from nonIc to IC. At least they attach differently, if I recall correctly. They could be the same gear.



They just unbolt to seperate. It is much easier off engine, and they may require some persuasion from a rubber mallet to get them apart. Take the usual precautions when reinstalling the p/s and vac pumps, and you should be good to go.



I keep forgetting to look up the CUmmins part number, but I called the StLouis shop and they had like 27 in stock when I gave them the part number, which makes me think it is posted somewhere on the TDR. Kits were around $7. 50ea; I ordered 2 kits, and had them shipped (I hate dealing with the Sikeston Cummins shop) for $17. xx total.



Daniel

 

[stoneagemaxx]

Thanks for the reply's, i got an seal kit from my local cummins dealer for the ps/vac pump but when i went to replace the seals yesterday after cleaning up the pump i find that they gave me a seal kit for what looks to be the early style but i'm off the the cummins dealer again to order up all the parts i need.

 

[sdstriper]

stoneagemaxx, could you please post the two different P/N's for my "piles of useless files". Thank you sir!



Ross

 

[dpuckett]

You sure they gave you a vacuum pump kit and not a power stering pump kit? There are about 3 or 4 o-rings, a big gasket, and the seal between the p/s and vac pumps. I didnt realize they had seal kits for the early style pumps.



DP

 

[sdstriper]

They do. There are o-rings for the brackets and drive support. Plus the other misc where the pump and the drive support come together etc.



I went in with p/n's and ordered all the seperates from one guy and when I went to pick them up another guy informed me of the whole works available as a kit...

 

[stoneagemaxx]

the part number that they gave me was 4089742 priced at 8. 48 but it did not have the correct o-ring for between the vac and ps pump, i'm trying to locate the correct part number right now.

 

[sdstriper]

Here's the seperates from the 89' Cummins Part Catalog, the numbers will be superceded automatically by them (Cummins). Please post the new p/n if you get them.



Ref #'s first, then part number, Cummins description, then mine in parenthesize.



Ref # 4, 3913192, hyd. pump gasket (gasket between assy and gear case)



#8, 3910260 (2 qty), o-ring seal (one for each pod @ accessory drive support or bracket,bottome pod has bracket)



#13, 3911805, o-ring seal (this is the one between the pwr steer pump and accy drive support) This is a current p/n @ $2. 35



#20, 3912822, o-ring seal ( between bottom pod bracket and accy drive support)

 

[sdstriper]

the part number that they gave me was 4089742 priced at 8. 48 but it did not have the correct o-ring for between the vac and ps pump, i'm trying to locate the correct part number right now.

I get nothing when I punch this number in on Cummins QuickServe. Dunno what up with that?