Can an Inline pump work on a first gen B5.9?

[PJensen]

I have a 91 1/2 B5. 9 can I get an inline pump and bolt it on and make it work on this first gen Cummins?



What parts are different from a First Gen 12V and a Second Gen 12V as far as the engine goes? Beside Pump and Injectors?



If I can switch the pumps from rotary to inline what other parts are needed to do the swap?



Thanks for answering my goofy questions.

 

[nmanalo]

PJensen, you can make an inline pump work on your first gen but it would be costly and time consuming IMO. The different parts besides pump and injectors are the lift pump, the wastegated turbo, injector lines and front geartrain cover/backing assembly. Those are the main parts to do the swap other than the turbo if you want to keep yours. This is to the best of my knowledge so I probably didn't get all the differences!!! It's probably easier and less time consuming/cheaper to swap in a 2nd gen engine IMO !!!

 

[Evan A. Beck]

I got an extra P7100 if you need one... 175HP stock pump.

 

[Power Wagon]

The differences are (at least the ones I know, I'm sure there's more:



The gear case, the driven gear that drives the pump, ALL the linkages and their attachements. The filter mechanism (I don't believe it fits, there's interference with the brake), the air inlet, the injection lines, the injectors, the routing for both fuel in and fuel out, the vaccum pump, an oil supply for the injection pump (present one has none, the P7100 will need need an adapter and braided line to lube the pump), the brackets that hold brace the injection pump on the bottom, and possibly even a small divot on the cylinder head that allows the pressurizing valve to be removed and replaced without taking the pump off.



Those are at least some of the most obvious differences. The earlier trucks don't have as much throttle travel, so that'll require some mods to get full travel, and if you have an auto, adapting the throttle position sensor to work, since it's a different one, may be a headache.

 

[R.E. Miller]

I can't confirm this, but I think that the head it self is different on the second gen trucks as are the rods/pistons/pins to handle higher cylinder pressures and the increase in rpm. I think that I read that over on Dave Fritz's web page, please don't hold me to it



Russell