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Old 04-30-2013, 12:37 AM
88 PS190 88 PS190 is online now
MC Maniac
 
Join Date: Aug 2005
Boat: 1988 MC Prostar 190, 351 Ford
Location: Midwest
Posts: 3,451
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Dubbs, these marine engines have a RUBBER impellor in the raw water pump.

This rubber uses water for lube, when new/dry they ship with glycerine, best practice is to prime on jose prior to the first run.

When run dry these chunk/tear. When you then go to the lake and this fails you overheat/strand.

Best is new every year, i pull and reinstall, this kid likely does not know, but ypu trash that impellor and you trash a day.
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