starting egine w/ no water
#3
Not likely. You will damage/fry the impeller in the SWP in as little as 3-5 seconds. If you have a plastic SWP, you will likely melt/damage the pump housing as well.
Closed cooling systems STILL HAVE a SWP and a sea-water side of the cooling system. Thus the same applies to an "open loop" and "closed cooling" system setup as well.
"Closed cooling" usually means only antifreeze touches the internals of your block, depending on the setup/model/plumbing.
Closed cooling systems STILL HAVE a SWP and a sea-water side of the cooling system. Thus the same applies to an "open loop" and "closed cooling" system setup as well.
"Closed cooling" usually means only antifreeze touches the internals of your block, depending on the setup/model/plumbing.
Last edited by Sydwayz; 03-25-2009 at 07:46 AM.
#7
21 and 42 footers
Platinum Member
#8
Registered
Not likely. You will damage/fry the impeller in the SWP in as little as 3-5 seconds. If you have a plastic SWP, you will likely melt/damage the pump housing as well.
Closed cooling systems STILL HAVE a SWP and a sea-water side of the cooling system. Thus the same applies to an "open loop" and "closed cooling" system setup as well.
"Closed cooling" usually means only antifreeze touches the internals of your block, depending on the setup/model/plumbing.
Closed cooling systems STILL HAVE a SWP and a sea-water side of the cooling system. Thus the same applies to an "open loop" and "closed cooling" system setup as well.
"Closed cooling" usually means only antifreeze touches the internals of your block, depending on the setup/model/plumbing.
#9
Registered
30 seconds is far too long. Engine can run for a few minutes without water. Impellar only a matter of seconds. If you have a bravo style sea pump you can pull the belt on the pump. At that point it seems far easier to just hook the boat to a hose. If you have allready run the engine then go ahead and change the impellar to be safe. Closed loop or open, fresh water still is fed to the sea pump.