sdseva

I am replacing the PS pump on my dads truck.. Having issues getting the dang thing back on.. The new pump has some threaded bolt thing sticking out of the back about one inch so it catches on the motor mount and its keeping me from getting the pump in..The Ive tried removing two of the mounting studs so i can get past that but now it seems like maybe thats not the right way.. can I cut that threaded bolt off a little.? what am I missing??

j.fonder

picture? i've replaced mine and have no clue what you're talking about.

NJTman

Some pump housings have a threaded bolt sticking out of the back of them, but ours did not. Its an alternate pump mount in a different vehicle where a bracket attached to the bolt. When you buy a new pump, you're supposed to transfer the threadless bolt from the oem Cummins pump to the replacement pump. Just unscrew one and put into another. Its there to keep the reservoir housing attached to the pump

sdseva

curses!!! I already returned the core!! so can I just cut it off maybe??

mknittle

Should work. as long as it clears.

NJTman

Yes

Wizzer wheel will do, but pull the bolt out so you don't heat up any seal, if one exists ( can't remember )
Or a hack saw

sdseva

ugh... chopped it off... It fits!! then when I was tightening down the nuts I broke a corner of the mounting bracket.. was unsure how it happened till I removed the bracket and found that the input shaft thing was not clocked perfectly. now I know that the pump should seat with little to no resistance. Pretty lame day

putting that behind me.. where can i find the mounting bracket, seal and large o-ring?? dealership part maybe? Cummins perhaps?

I see beers in the near future...

j_martin

Most of the trouble, including broken ears on the vacuum pump can be avoided by coupling them on the work bench and installing to the timing case as an assembly.

thrashingcows

That's how I do it. Only takes about 10 min max to remove the whole assembly.

NJTman

The ears break off if you forget to install the 3/8 thick washers on the rear inside studs before the pump is installed. They keep the alignment correct

j.fonder

i lost one of these when replacing my PS pump. didn't realize it until i had the pump almost complete back together. i used a big nut and just ground it down until it matched the other one. why dodge, why...

NJTman

Same reason why we have cracking mounting plates for the steering gears...

Bean counters.....

sdseva

The washers were there! Pretty sure the round plate with the cross in the middle wasnt seated properly.. Ill definitely be assembling the whole thing before installation. Of course its sunday and Ill never find a place that has a bracket so im out of luck..

j_martin

Pretty sure the "bracket" is the back casting of the vacuum pump.

sdseva

So... Looks like I might have to purchase an entire vacuum pump..? Cummins quoted me over $400