1982 Freightliner COE...

Are you sure the clutch or shifter linkage isn't interfering with the throttle linkage? That's my bet.

 

The inj. pump will have to be sent off and be rebuilt but 1st pull the big hoses off turbo and look for oil from leaking seals at turbo that lead to intake side if no oil is seen then send the pump off to a rebuilder like the one in atl, ga the name is assocated fuel at 404 361 1361 they can still rebuild the old inj. pumps on those eng.

 

You can still get new fuel pumps for the old iron.

 

The guys here have really given you great advice. The only thing that I would add, and I don't know that that could cause your problem, would be to adjust the injectors and the valves by the sequence in the Cummins manual.

I would bar the engine over and watch to make certain that the injectors are not sticking anywhere and that the sequence is done and the adjustments are correct, because if not, the injectors will not shut off, and fuel will be injected at the wrong time. You should also check your exhaust stack and see if it smells like fuel or oil or if you have residue in the pipe. That should give you a clue.

Again, I don't know if it could cause the problem you're having, it really sounds like a problem in the governor or AFC valve, or that you are sucking oil, but it's a good idea to adjust the valves and injectors on a new to you truck anyway. It definitely affects how the injection works. Please tell us what happens because I am curious also about this problem.

 

PT fuel pumps, which you have , will surge when they suck air in the fuel supply pump which is most likely your problem. A bad fuel supply line? Check with a inline sight tube if bad hose can not be found.
As for the starter problem the most common cause of starter failures is low voltage. If not over heating the stater the soliniod contacts weld together due to slow pull in - contact. They weld together, will not release after the engine starts, and run the starter motor to its death.
A highly restricted fuel return line can also cause one of these engines to run away. Yours just sounds like not returning to requested RPM as in low idle in a reasonable time. Run away can go above and beyond rated RPM two times rated speed or more.

 

Paint? Pics?

 

Were you able to get fuel inj. pump rebuilt or did it get a new inj. pump?