the flow of water to cool raw water intake engines

'03 bu vlx, indmar monsoon efi engine.
Where exactly does the raw water go once it enters the boat. i.e. raw water intake -> water filter -> impeller -> ???
My boat's intake hose looks like it goes straight to the v-drive unit then out and to the impeller, but that can't be right can it??

(Message edited by patrick on October 18, 2007)

That is right. The impeller sucks through the v-drive, transmission cooler (at least on my previous Indmar powered boat) and then into the impeller. From there into the engine circulation pump.

I believe in from bottom intake grate, around to lower v-drive unit, raw water pump, to trans cooler to top of front of engine intake, then disperse to exhaust and engine water pump and block.

george is right... it flows thru the trans cooler then to the impeller and then the eng...

Good to know. Thanks for the info!

One more question. If I run antifreeze through the engine, would I have to use a fat sac pump to pump it out of a bucket and into the hose or would the impeller be able to suck it out efficiently enough?

The impeller can suck it from a bucket

the boat will pull a 5 gallon bucket down in less than a minute.