Engine/Transmission (1994 - 1998) C series P7100 on a B series?

[Woodenhead]

I have a P7100 pump that came from a 6CTA-A motor. I called a local shop and they gave me all the info for the pump as well as calibration data. They said they could likely calibrate it so it would work on a B series but were not sure how well it would work.



Anyone have any thoughts as to what might happen if one were to try this . My thoughts are the C series would require more fuel so this pump would likely push more fuel, however the 215 pump I have is perfectly capable of all I need it to do. I'm certainly no expert here and really have no idea what would happen. Any comments?



Mike

 

[Andy Redmond]

It may be a "230" hp pump which is loosely based on the 180 hp pump found in auto trans trucks of your vintage. Plenty of folks have proved the 215hp pump is hard to beat.



I'm guessing that it may have different governor parameters that will need to be addressed for the ram's wider rpm range?



6CTA-A 6 cyl. C series, T turbo'd, A innercooled or after cooler, a after cooler maybe a industrial engine??



Have you had Cummins/Quick Serve to run the engine serial # to determine if it was an automotive application?



Good luck! I'd have the 215hp pump tweaked if it was me. . Andy

 

[Joseph Donnelly]

Keep your 215 hp pump. The C pumps oil from the front, not a hose into the side. Its a difficult swap and the C pump is not as good as the 215, imho.

 

[Woodenhead]

Thanks for the info guys. The info the shop gave me for the pump says it's from a 250 hp motor. I just have the pump so I can't run the engine serial # to find anything else out about the motor. I do have the calibration data, I guess if I could get the data for a 180 pump I could compare the two.



I wasn't really considering switching pumps, I was more or less just wondering how useful the C series pump was. I do know someone who currently has a busted 180pump and is in need of a cheap replacement but it looks like the oil lines may be an issue.



Thanks again,

Mike

Mike

 

[therabbittree]

I aminthe process of doing a p pump from a C series on to a b series. I had to weld up the gear case from the ront side and then drill two holes at 90 degrees to each other inorder to make ahome made oil gallery. for the pump to gear case junction i had a friend ream out a area aroud the drill hole so a o ring fits tosealthe pump to the gear case. now on the other side of the oil gallery (outer edge of gear case) i'm drilling and tapping for a an fitting to supply the oil. If you decide not to dealwiththe oil gallery fabrication thenlet me knowi you want to sell your pump?. . i may be looking for another spare.

thanks

deo

-- email address removed --

 

[HoleshotHolset]

Here's a shot of Deo's modified gearcase - that will allow you to use a front-oiling P7100 on a B-series: #ad




Matt

 

[Woodenhead]

When I received the pump I really knew nothing about it's history or at first what it came off of. Yesterday I brought the pump to local shop to have them check it out for me. Before they put any fuel to it they found the rack was stuck and wouldn't budge. They pulled it apart and found since it had been sitting so long the plungers were a little sticky in the barrels and this is what was holding the rack. I'm told the pump is actually in good shape and with some cleaning, lapping, new seals/gaskets and calibration I could likely sell it for $1000-$1400. The problem is to have them do all the work it'd end up costing me around $1000 for parts and labor. So... since I really have little into the pump as it is I just took the parts home and will one day attempt to do the work myself and if I ever get it together I'll get it calibrated and see what happens.



Like I said, I have very little invested in the pump and if nothing else I'm finally learning more than I ever dreamed about what really goes on inside a P7100 . When I have time I'll try to take some pics of the internals and post em.



Thanks for the info.

Mike

 

[HoleshotHolset]

Mike,



That's what this hobby (obsession in my case... haha) is all about. Learning as much as you can and having fun with it.



When I took apart a 4-cyl 'A-series' inline pump... I learned a LOT!



Matt

 

[HCanales]

Did you folks happen to find any manuals on how to put together and calibrate the pumps? I'm in the same boat as you guys with my hobby!

Let us know what you find out...

Thanks HCanales.

 

[Woodenhead]

I ordered a book on Bosch Diesel Injection pumps from Bentley publishing. I don't have it yet but we'll see what kind of info. it has.

 

[HCanales]

Let me know what you find out when you get it because I may want to purchase the same book.

Thanks HCanales

 

[Woodenhead]

will do



woodenhead

 

[Cooker]

The book in question is good IMHO but not great. Most of the info could have been found by carefully reading the TDR (both the printed magazine and the forums) over the years. It still leaves a great deal to be desired when trying for figure out how to calibrate these pumps for HP.