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Cub-Lo - NO oil pressure

The tractor doesn't have a oil pump. Just two gears in the back of the motor that pumps the oil. And also a oil regulator spring and valve.
 
Thats the oil pump!! do as bowweevil says you need to prime the pump, by pumping a little oil down the oil filter.


Andrew
 
To prime the pump! Hal

1.Remove the allenhead screw at the back left side of engine block and pump oil using a squirt can.

2. Remove oil filter cap & fill housing with engine oil & replace the top.

PS: Then start engine and let idle to see if you have oil pressure.
 
Remove the oil pressure gage and crank the engine. If oil comes out the gage hole, then there is some oil cirulation and the pump is primed. The problem is something else. I had this problem a couple years back. I was told that maybe the rebuilder left out one of the oil gallery plugs. A couple of these are internal and can't be seen without some disassembly. The parts catalog information shows where they are. One is behind the cam drive gear. In my case, it was none of this. The problem was that the idler gear in the timing gear chamber at the front of the engine had come loose. The retainer bolt that holds it had broken (or been twisted off by the rebuilder). Oil pressure pushed the gear out so that oil leaked out of the gallery and drained back to the pan. The gear still meshed and the tractor would run, as the the front cover kept the gear retained enough so that it did not come loose and out of mesh. If it's something in that timing gear area, you are looking at pulling the front pulley and the timing gear cover to find it.
 
I had the same problem with a cub prime it remove the allien screw pump in some oil that should do it but it may loose prime keep a eye out
 
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