I just picked up an 86 trooper TD in need of some freshening up motor wise,w/271,000 orig. miles!!!
I purchased this very clean rig in Wa. state.I changed and topped off some or the essentials,along w/ fuel and air filters,pcked up some emergency tools @ Wally world(I Vacationing w/ my lady in my 05 VW Golf TDI &not planning on buying anything @the time),and off we went back home to Denver Co.from the Seattle area 1,350 miles w/ a,"what am I getting into feelling in my head"
After the first 100 miles @3150 rpm I took an exit ramp ,engine went to idle & the oil death light came on,the pressure gauge was conveniently not working.
With anything over 900 RPM it quickly extinguishes.
At a minimal load at 35 mph the engine surges,but w/ a load w/ resistance over 50 mph it doesn't surge--works correctly.. Oil consumption @ 1000 mi.was approx.1/4 a quart or less,mostly from external leaking,and power was pretty good.
On long up hill grades engine temps would rise dangerously close to boiling over & the truck was lightly loaded.

@ mile #1189,the engine stopped for 5 seconds and then continued as normal,@65 mph.,then 90 miles later again for 8 sec.,then25 mi.for10 sec.& again twice more until it ended up @ the end of a strap behind the VW,for the rest of the trip to Denver.

I suspected the fuel cut out solenoid I jumped it/no go,soo I'm assuming the fuel pump.

I would like to re-bearing the crank,replace the oil pump,crank seals,Re-build the fuel pump and increase the fuel delivery to 130HP advance the timing,Intercool it and increase the cold side displacement of the turbo.,Yes I will be running pyro& boost gauges.
Can anyone help me w/ some experience on this C223T motor? <img src="/forums/images/graemlins/scared.gif" alt="" />

Congrats on getting a great vehicle/ engine.
I hope I don't offend you but before monkeying witht he fuel pump (injector pump) I'd:
Check the air cleanre
Check the fuel filter
Check the grounding strap betweent he engien and body/frame
Check that the battery hold down clamp is not causing a "short".let me expalin.. If the battery hold down is a metal frame tha t comes over the top of the battery, and if the protective rubber coating is worn off then the clamp can act as a path to ground thus daining the battery or not allowing the voltage to go where it should.
I removed my hold down and replaced it with a non-conductive material.
I'm in Burke, VA (near DC).
Let me know if you need help.
Others will chime in on your problems I am sure.
Regrads!
Eric

Thank you!,but I did find the problem.It was a bad contact close to the fuel cut off sol. after all.
I still have the surging issue at light load situations though.
I'll see how this rig works out,before I drop the $$$ on the rebuild and upgrades/power upgrades.
Any idea of a good pts. source for bearings,seals,oil pump,valve guides,etc..??? <img src="/forums/images/graemlins/pfft.gif" alt="" />