Posted by Steve@Advance on January 09, 2015 at 15:58:42 from (108.245.66.82):
In Reply to: cub tractor posted by richardjones on January 09, 2015 at 10:30:03:
Not familiar with your particular engine, but sounds like it has lost it's prime.
Looking at pictures of the pump, appears the gasket sets the clearance for the gear endplay. Very important, too tight the pump will gall or lock up, twist the drive off. Too loose it won't prime.
Any way to determine if the pump is turning?
Any doubt about the pick up tube and screen? Any air leaks and it will suck air and loose prime. Also if the pick up tube is empty, as in the oil is drained down into the pan, and the oil is cold and thick, the pump will have a hard time drawing oil up to the gears.
If you're sure everything is mechanically sound, pack some soft grease, vaseline, etc. into the pump. Leave the gauge disconnected from the engine for an air vent. Get some heat on the oil pan if it's cold. Start it up, bring the RPM up for a second, be ready to shut it off, see if it will shoot oil out the galley.
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