Re: Mercruiser 5.0L - Advice required regarding flushing
Daniel, yes..... the closed cooling system would be much better for you, IMO.
You can use the flushing systems...... Salt-a-Way is one them.
These introduce a neutralizing chemical into the cooling water side.
However, there is a catch with the A drive, in that the sea water pump is in the lower out drive unit.
These kits are more effective, IMO, with an engine mounted sea water pump.
NOTE: Use extreme caution if any of you consider using these kits to winterize with.
This is topic that has been discussed here in the past. More later if interested.
Rick ... aka Ricardo
28' SDN F/B w/ twin Volvo Penta 5.7L DP's