The pump has two nuts at the adjustment slots on the mounting flange, a bolt on the oil filter
mount and the splined shaft that engages the injector timing gear
. The sea water
pump drive tang screws onto the forward end of the injector pump
shaft. The manual says to gently tap the pump shaft with a suitable nylon drift and hammer. Not sure what a nylon drift is but more than gentle tapping on the shaft/tang did not loosen the shaft. There are extractor bolt holes in the injector pump
. I still need is find the size threads of the extractor holes and suspect i will need to find/ fabricate an extractor. Should I use some PB Blaster and/or heat? I am concerned about using toomuch force with the hammer. The timing gear is Westerbeke
part #031027. Any other suggestions?