The problems keep coming D2 5J Pony will not disenguaged

Well went again to try to get the D2 started last Saturday.Guess what the pony motor is stuck enguaged to the big motor.I pull the starter rope and the diesel engine turns.I moved the levers to try to get it unstuck with no luck.So now what? Seems like my little Cat is turning into a big project.I was going to try to use some of the last advice and now I need more.Sorry guess thanks in advance for any help.😞

Hi laying tracks,
when sitting in the operators seat look to the left of the Master Clutch throwout lever, under the foot plate, there should be a small cover about 2" dia with two 7/16" head bolts holding it on or a large pipe plug, and some real early units may not have this feature. Somewhere I think I have the Cat proceedure to drill a suitable hole to access the latches--I will look for it if you need it or someone else may find and post it first.
Access is gained to the pinion latches here. If you cannot see the latches fully turn the pony flywheel until one appears in the window. You should see a latch, it has a screw held in place with a split pin, you just need to push down hard on the latch here to get it/them to unlatch and you should be good to go. The two latches are linked together so unlatching one does both.
Hope this helps.
Cheers,
Eddie B.

Did you release the clutch on the starting engine? If you did and it still turns the diesel then the clutch is stuck too.Any time the starter latches are engaged you can release the clutch and it won,t let the diesel turn then.At all times make sure there is oil in the clutch housing of the starter pinion and there is level plugs to fill it to. If you get the starting engine started with the clutch disengaged then engage the clutch and see if the diesel turns then and starts.If it doesn,t kick out after the diesel starts then you have pinion and latches hanging up.