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I did use a touch of grease when installing the impeller.
The impeller in the pump was 6 blades and the one I installed has 5 blades/legs so more flow and less pressure (as I understand this). If anyone thinks this is a problem please say. I’ll be using my infrared thermometer and I’ll be looking for 120 – 140°f
Again thank you everyone for reading and extra thanks for responding.
Are you sure this impeller is an OEM piece and not some aftermarket thing with the OMC part number on it? I have never heard of 5 blade impellers replacing six blade impellers on OMC outboards. I would be suspect, this is one area you don’t want to fool around with, be sure the impeller is OEM. Overheat it at high RPMs, definite damage occurs…
Looks like the original OMC part number was: 378891 which supercedes to: 775521