OEM flush kit

Larry Sturm

Active Member
GOLD Sponsor
Mar 26, 2017
140
Chiefland, Florida
Boat Info
2003 SeaRay 420 Sundancer
2003 SeaRay 320 Sundancer
Engines
Cummins 6CTA8.3-M3
Mercruiser 350MPI
I just purchased a 2003 Sea Ray 320DA with Mercruiser 350MPI engines, V drives. Engines have a OEM flush kit with a label that states engine must be running when you flush system. My question is do you shut the tru haul valve, then turn on fresh water, and then start engine to flush. A engine manual did not come with boat.
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Yes, close the thru hulls and flush. Be sure to reopen them when done. Its part of my pre-flight to check that they are open when heading out because you may forget.
 
Yes, close the thru hulls and flush. Be sure to reopen them when done. Its part of my pre-flight to check that they are open when heading out because you may forget.
Just to make sure: you turn the water on first, then start the engine?
 
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