Dave In Chattaroy
Member
I need some input from you guys. I had posted a while back about the oil pressure light on my ’72 Ford 5000 (diesel w/SOS) coming on and staying on.
I have owned this tractor for about 6 years and use it primarily for stacking and feeding round bales with the Ford high lift loader that’s on it,
so I need to minimize my downtime.
From what I’ve been able to gather possible causes could be, faulty pump, faulty relief valve, broken/worn pump shaft, or bearings out tolerance.
I replaced the oil pressure switch and verified the wiring and operation. I also replaced it w/an analog guage that confirmed no oil pressure.
Some of you suggested that I pull the soft plug and ensure that the oil pump gear was engaging …..it is. Next I pulled the oil pan and replaced the oil pump with a new one, I also cleaned and inspected the sump for shavings and didn’t really find anything alarming. I was told that damaged main bearings would be pretty obvious with residue in the pan. With the oil filter removed oil does get pumped out of the oil supply. Next I pulled the valve cove to see if any oil at all was making it to the top of the motor..….started the tractor, pretty much nothing up top.
So here’s where I’m at today, I suspect possibly the camshaft bearings are done or I have a plugged oil gallery somewhere. I’m about ready to pull the motor and either have it rebuilt or buy a remanufactured long block.
Before I do this am I missing anything???? Any last troubleshooting????
As always I appreciate your suggestions and advice. :?:
Dave
I have owned this tractor for about 6 years and use it primarily for stacking and feeding round bales with the Ford high lift loader that’s on it,
so I need to minimize my downtime.
From what I’ve been able to gather possible causes could be, faulty pump, faulty relief valve, broken/worn pump shaft, or bearings out tolerance.
I replaced the oil pressure switch and verified the wiring and operation. I also replaced it w/an analog guage that confirmed no oil pressure.
Some of you suggested that I pull the soft plug and ensure that the oil pump gear was engaging …..it is. Next I pulled the oil pan and replaced the oil pump with a new one, I also cleaned and inspected the sump for shavings and didn’t really find anything alarming. I was told that damaged main bearings would be pretty obvious with residue in the pan. With the oil filter removed oil does get pumped out of the oil supply. Next I pulled the valve cove to see if any oil at all was making it to the top of the motor..….started the tractor, pretty much nothing up top.
So here’s where I’m at today, I suspect possibly the camshaft bearings are done or I have a plugged oil gallery somewhere. I’m about ready to pull the motor and either have it rebuilt or buy a remanufactured long block.
Before I do this am I missing anything???? Any last troubleshooting????
As always I appreciate your suggestions and advice. :?:
Dave