Reading over this issue......
Once the engine gets up to temperature EVERYTHING expands a little.....Including the Plunger bores in the Injection pump.

How old (Miles on the IP) ?????
When was the fuel filter last changed ????

A hard / no start on a warm engine can be related to NOT ENOUGH PRESSURE BEING MADE in the IP to pop the injectors

GET A GLOW PLUG ON THE DRIVERS SIDE OUT and spin the engine....see if fuel mist blows out......

If fuel blows out it should run....especially when warm.

NO fuel at glow plug hole..... WHY ?????
IP WORN OUT...
FUEL SHUTOFF SOLENOID FAILURE....

The fact that the engine will start from cold and run OK indicates that the systems SEEM to be functioning.....

An electronic components failure SHOULD show issues while the engine is running...

A short shut down should NOT cause an issue

My suspicion is the IP is just not making POP pressure....

The reference on the SOL D unit was correct.....The unit would not lite the fire when it was cold and line voltage dropped off....

Jump the rig with some big batteries and BOOM lite right off.

SOL D never addressed the issue and faded into the mists of time and 6.5 history.....


I have started a few 6.5 with low crank speed.....Computer does not care so much about speed.

Cranking speed has more to do with getting compression in the cylinders up .....And if the IP is worn ....a low speed will simply not get the pressure in the plungers up to pop level....


When it is warm and will not start....Yank a plug...roll it over and see wasssssup