Home › Forum › Ask A Member › Water pump theory question › Re: Water pump theory question
Melugin:
The 25hp engines of that era do not have the troublesome gearcase with the pickups too far forward. Are these salt water engines? If so, the best bet is to go through everything in the cooling system. I would definitely pull the head and look at those deflectors, these deflectors are in the cylinder cooling galleys, not under the powerhead. Pull the head cover off and replace that thermostat. And yes, remove that powerhead/ inner exhaust tube, and replace that grommet, don’t bother attempting to ream through it. The problem here is if the engine has seen salt water use, and never been properly serviced, many of these fasteners aren’t going to come out easily. So, I should have prefaced my comments by saying trying to service salt water engines of this vintage may leave you with several broken fasteners, and a corroded mess not worth repairing.
Needless to say, I would also update the water pump to the latest complete kit from BRP.