Hello I'm new to this site. I have came here for a lot of information, but now I'm stuck scratching my head.

I have a 1992 Non-turbo IDI 5 speed 2WD
I just replace my injection pump 2 times. Got the pumps from O'reilly. So after the second time I thought I did something wrong so sent it to a shop. They told me the injection was basically trashed wasn't doing what is what supposed to do. So on the 3rd pump I got a good one and took it back to the shop to get my truck time and had them turned the pump up a little to give me more power. I have tested all the injector and all tested good beside one and replace it. I have replace Glow plug, glow plug relay, solenoid on fender, fuel filter, fuel pump (replace about a year ago)

The problem I'm having is I'm burning up to much fuel and lose of power going up small hills. I thought by them turning the injection pump up it would help out but all im getting is black smoke when going up a hill. Faster take off but really nothing after 4 gear. I'm learning as I go on this. Truck was my first truck so I'm kinda at a stand still on why I'm burning so much fuel. 68 miles im burning over a half a tank. Running only front tank, but i know i had better fuel mileage before this injetcion pump was put on. So should I turn the pump back down or do I have another problem somewhere? Thanks.

 

Turn the pump down! without a turbo you cannot use all the fuel that you are putting in. Black smoke=wasted fuel.

 

welcome to FTE.
if you are getting black smoke out of the exhaust, you are over fueling the engine.
you want to see just a very slight haze out of the exhaust on a full throttle up hill run.

 

turn your pump down!
wanna know what happens to an over fueled engine?
look at pictures closely.
IMO, a pyrometer is a must on any diesel.
i cracked every single piston, and the driverside head is cracked inbetween every valve.
temps got up to 1250, sometimes peaking to 1300.
i tried to drive by pyro, but ended up cooking it.

 

Was this N/A or turbo? Where was your pyro located? Were those sustained temps(minutes) or short(a few seconds)?
Thanks for the info, I love the pictures and having numbers to go with the carnage.

For the OP, turn your pump down! :P
And install a pyrometer!!
I agree with the others, I'm running N/A and without a pyro I would have ruined my engine a long time ago. Heck I didn't even turn up the pump when I put in the pyro and with that setup towing a 4K trailer up small mountains(common in my area) I saw quickly that I was cooking my engine on long climbs. This was with stock everything, and a rebuilt pump.
That was a few years ago, and so far so good, thank God, but now that I'm tuning it I'd be toast in short order without it.

-Joshua

 

this was with a worn out 093 turbo.
still produced 10 psi.
and innercooled.
pyro located between #6&8 on exhaust manifold.
105 cc pump
when i saw temps reach 1200 i tried to stay out of it.
temps were only for a short amount of time.