gmulhollan
New member
- Joined
- Apr 13, 2010
- Messages
- 1
I have a Gravely LI, serial number A-12456 (1945?). This tractor and Gravely in general are new to me. I have read through the old threads and the service manuals on this beast, but need some more detailed advice. When received, it would start right up (still does), but the oil pressure gauge read on the low side and as the motor warmed up, its reading and the oil stream under the fill cap would diminish. I have changed out the filter (spin-on type, with gauge on the output of the filter; this is as I received it). I took off the gauge and tested its response with my air compressor. The 'red' block tops off at 15-20 PSIG (poor resolution on my compressor's gauge) and 60 or so is just past 12-noon. So I know the gauge is working. New filter, 30 weight oil and no reading, but tilting just like in the manual and bang! high pressure in the gauge. :thumbdown:But...the oil pressure still decreases as the motor warms up. To my uneducated mind, this implies the oil gears are worn and as they warm up the gap between them becomes too big to pump the oil. Does this sound correct or are there other (cheaper, easier to get to) items that I should attend to first?