Pumps

I need to replace a pressure pump and unbolted it and can not get it off.

I use a pickling fork a u shaped wedge tool with a strike end.

The keys are a harder steel than the crankshaft and often fret the crank. one solution over the years has been to use a silicone glue type product and literally glue the two parts together.

Because of the high rpm 3400 and pressure combined with water these things can be very difficult to separate.

some pumps will come with threaded ports on the ears to provide a means to separate the pump from the motor. Use caution as it is easy to break of the ears if too much for is use on the bolts.

drain all the oil from the pump before you start. Try the flat bar method above as some times you get lucky.

If that does not work you need to use the pickling fork and a mini sledge or very large hammer hit it form all four directions working around the shaft. sometimes a large wrench is needed as a block as the unit separates.

It often takes a huge amount of sweat time and force to separate these two.

High pressure fuel pump for dual quad carburetors?

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