D2 5U: after 30 years I went to start it and no oil pressure

One additional point. Over the years, I always manually rotated the engine with the fan, in the winter too. If there was some water in the sump, could it have frozen the oil pump and then when turned if over by the fan, could it have sheared the oil pump pin in the drive gear ? Is there a way to see the drive gear off of the cam via the access panels in the side of the block ?

One additional point. Over the years, I always manually rotated the engine with the fan, in the winter too. If there was some water in the sump, could it have frozen the oil pump and then when turned if over by the fan, could it have sheared the oil pump pin in the drive gear ? Is there a way to see the drive gear off of the cam via the access panels in the side of the block ?

Hi jsk.
DANG!!!!!!!!!!!!!! ONLY standing 30 years and now no oil pressure??????? You just cain't trust these noo-fangled modern tractors. They don't build 'em like they used to.

Did you set the alarm clock for it to wake up??????????????

If you crack the oil pan plug and check for water, that should give you a clue about whether frozen water has jammed the oil pump or not.

(I SEVERELY scolded my inner child for the facetious remarks above and it just laughed at me. Maybe I need to kick it's buttt??????)

Just my 0.02.

Hi. It didn't look like it had any water when I drained it. However hard to tell.
I took the gauge off to check and ran it for about 2-3 minutes under no compression but did not see any oil coming out of the rail fitting at all.

Hi, jsk.
Sorry. I mis-cued above. I forgot that you had said that you had changed both engine oils. If there had been water in it when you drained the diesel engine, it would likely have come out first and may even have been pretty clear after standing for thirty years. Ditto with the pony motor.

I'm no 'ex-spurt' but I suspect that it would be possible to get some oil into at least some of the galleries by pumping it in through the oil pressure gauge opening. This might help to partially 'prime' the system while you are turning it over.

Another possibility, given the time it has been standing, is that the old oil may have 'jellied' in the pickup pipe, especially if it had a good number of hours on it when parked.

Happy hunting.

Just my 0.02.

you might be able to use a inspection cammera to look at the pump drive gear via a side cover. and maybe use a pencil flame torch to warm the pick up pipe if like deas suggested it migh have gelled in the pipe

Hi, jsk.
Sorry. I mis-cued above. I forgot that you had said that you had changed both engine oils. If there had been water in it when you drained the diesel engine, it would likely have come out first and may even have been pretty clear after standing for thirty years. Ditto with the pony motor.

I'm no 'ex-spurt' but I suspect that it would be possible to get some oil into at least some of the galleries by pumping it in through the oil pressure gauge opening. This might help to partially 'prime' the system while you are turning it over.

Another possibility, given the time it has been standing, is that the old oil may have 'jellied' in the pickup pipe, especially if it had a good number of hours on it when parked.

Happy hunting.

Just my 0.02.

I agree with Deas, You need to prime the oil pump by pumping oil into an oil gally. I would rig up a pump of some kind to hook to the oil gally and pump intil you have oil coming up to the rockers. Then remove pump and I will bet you have proper oil pressure. I had to do the same thing after a tractor of mine sat for 17 years. After so many years the oil had eventually dripped out of everything. I was lucky and found a large squirt oil can and clamped an old grease gun hose to the nozzle. I then used that to pump oil in. It was slow but worked great. Good luck.