Reply To: Pump Impeller vanes “set” in a month

[olcah]

Tried to clean up the worn grooved pump housing.  Put it in a lathe and indicated the pump cavity to be straight and concentric.  Measured the depth of the pump cavity to be 0.508 inch.  Took several light cuts on the bottom of the cavity removing 0.006 inches.  Then took 0.006 inches off the housing flange which brought the cavity depth back to 0.508 inch.  This removed most all of the damage leaving one partial groove about 0.002 inch deep, which should be OK.  Did not want to remove much material as it narrows the water discharge passage.  The narrowest part of the passage is about 0.100 deep (not machined just as cast) so the passage would be 0.006 inch narrower.  Also it is difficult to hold the housing in the lathe and the less machining the less chance of the housing moving during cutting.  See photo I think this will work.