Fresh water flush system for salt water cooled I/O Mercury 4.3 liter engines? - Maxum Boat Owners Club

Capt Al · 06-08-2010, 02:32 AM

Replaced my manifolds and risers recently after 8 yrs of use. Not bad but...... Mercury sells an adapter that allows you to attach a garden hose and flush out the saltwater cooled engine. Mercury say's that this will help even though the I/O drive sits in the water. Others say that it's a waste of time due to the fact that the alpha drive gen 1 pick up sits in the water. Any thoughts?

seapuppy · 06-08-2010, 02:37 AM

well capt....I used to work in the marine industry for about 17 yrs...mainly big assed boats....and my thoughts are that if you can flush some of the raw water out after a use..then it will be a plus for your boat....I think flushing salt water from your system would be a plus....thus..if you can add the system...go for it...can't hurt....certainly would help..

SP

ss3964spd · 06-08-2010, 01:44 PM

Agree with SP, some flushing is better than no flushing.

Since you don't mention what boat it is I'll add that if it's a trailered boat I wouldn't bother with the adapter and just use muffs on the out drive to flush. That way everything gets flushd.

Dan

Capt Al · 06-10-2010, 03:59 AM

Quote:

Originally Posted by seapuppy

well capt....I used to work in the marine industry for about 17 yrs...mainly big assed boats....and my thoughts are that if you can flush some of the raw water out after a use..then it will be a plus for your boat....I think flushing salt water from your system would be a plus....thus..if you can add the system...go for it...can't hurt....certainly would help..

SP

Thanks for the feedback! I agree.....