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my buddy has a 12wj that just grenaded and now we found and installed a rebuilt one. what are the proper maintenance procedures for lubricating these pumps?
 

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Keep the thrust bearing with Extreme pressure Lithium Grease only. There should be a zerk for it. Pretty sure you can use the same stuff for the tail section too, though other lubes would work well too. Just dont use the water proof crap.
 

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Maybe 20 pumps on a fresh thrust bearing. On the rear, maybe 5-10 pumps initially.

After that, at the beginning of each season I give my thrust bearing a few pumps. Rear I do every other trip.
 

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You just need to keep the bearing cavity full. I take off the 1/8 pipe plug on the side of the bearing cap and pump grease until it comes out there, put the plug back on and your ready to go.. Jim :)
 
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