Finally replaced the junky IP I have suffered with for months! Paid $100 for a nice looking lower half. Completely disassembled it, cleaned and replaced o rings and washers. Mounted, ran excellent! SOOOO much power over a sloppy pump. The old one had 1/4" of in/out play with no feeling of the camplate rollers as you turn it. The main spring on the pump shaft was shattered and bits of SPRING STEEL were around the shutdown solenoid and inside. Pump casting was brown inside. Truck test drive was great, locked up shop, headed home and 2 miles out, lost fuel pressure and then had what sounded like a carnival ticker wheel under the hood. Immediately shut it down, looked under and found the KSB blockoff on the back of the block was loose with one bolt just sitting back there. Got a tow from a buddy back to the shop at 10:30pm, removed pump and by 2AM I had the pump installed, all bolts double checked for torque and locktite on all. Also retorqued tappet cover bolts and now everything is bone dry! Truck roasts tires up through overdrive and has an RPM band I couldn't even imagine before! Old pump had the KSB hardwired to keep running and it got to the point where it never idled anymore. Would stall hitting the brakes in reverse, only revved to about 2k with white smoke and popping. Old injectors were shot from metal the pump pushed through (could blow through them and they would leak fuel out) so with a pump and good used low mile injectors, my truck goes like snot! Also, I removed the fan and shroud and didn't install them when I put it back together. Never ran one on my last truck and the IC cross flow radiator has so much more cooling capabilities. I have been driving it for days and it still stays at the lower mark of the temp gauge operating band just like it did with the fan. When idling at a light, it never moves more than an 1/8" hotter! So much better throttle response and no more shutdown fan squeal!
1 minute video of the first test drive. Stock spring, +1 turn on fuel screw, starwheel bottomed and 1 turn on smoke screw. Throttle lever clearanced to fuel line, high speed screw removed and banjo bolts drilled and a home ground fuel pin. Timing to the head as well. No power braking of the start, just hammered it. It was a little wet out on the road so the tires spun quite a bit.
http://s393.photobucket.com/albums/pp19 ... 6f25bc.mp4 Charlie
1977 M880 Cummins 5 speed SOLD
1985 Crew cab Cummins P7100 NV4500 D60/D80
SUNY Maritime Class of 2017!
I was kind of tired running on 10 hours of sleep in 72 hours and a day of school plus 6 hours in the shop. Made a big bang 
Luckily, no sheared parts and the barring tool wasn't hurt. Dampener wasn't bent and it started right up. Phew....