Raw water flow

[Jakem]

Curious on how much water I shoukd see coming out of my exhaust and prop while running on muffler. Ford 302...mc-1. I just changed the impeller and housing. Could someone post a vidio if possible

 

[dubs283]

Curious on how much water I shoukd see coming out of my exhaust and prop while running on muffler. Ford 302...mc-1. I just changed the impeller and housing. Could someone post a vidio if possible

Once engine is running warm at idle with choke open you want to see pretty much the same amount of water exiting the exhaust as what is going in. The exhaust is an open ended system with constant flow, the only cooling water that isn't continually exiting is what is in the engine block. Once the thermostat opens that water can exit and be replaced by incoming water supplied by the sea water pump

 

[Scott Danforth]

Curious on how much water I shoukd see coming out of my exhaust and prop while running on muffler. Ford 302...mc-1. I just changed the impeller and housing. Could someone post a vidio if possible

at idle, just about 7 GPM is running thru the system with all the restrictions

 

[Scott06]

Curious on how much water I shoukd see coming out of my exhaust and prop while running on muffler. Ford 302...mc-1. I just changed the impeller and housing. Could someone post a vidio if possible

About this much this is an MC1, this guy has a lot of water pressure to the muffs so if you are on a well may be a bit less

 

[Jakem]

Ya mine is pretty close to that..little less maybe. I see a solid stream coming from the lower unit on the right...I see that hole on mine but I believe it's plugged now that I see that...drill it out or what best

 

[Scott06]

Ya mine is pretty close to that..little less maybe. I see a solid stream coming from the lower unit on the right...I see that hole on mine but I believe it's plugged now that I see that...drill it out or what best

I think that was a casing drain used on some MC-1's but not sure @Bondo may know

 

[Bondo]

Ya mine is pretty close to that..little less maybe. I see a solid stream coming from the lower unit on the right...I see that hole on mine but I believe it's plugged now that I see that...drill it out or what best

Ayuh,..... There's an idle relief port on each side,......

Don't drill anything, but you can poke around it abit,.....
Ya might find an ole shutter bit in there,....
Any exhaust or water not comin' outa those ports is expelled through the prop anyways,....

 

[Jakem]

What I meant is the tiny hole on the right side only

 

[achris]

What I meant is the tiny hole on the right side only

That's the drain for the front cavity of the drive lower housing. Yes, it must be clear, or the water in there will freeze and crack the housing. Poke, prod, anything to clear it. One some drives I've worked on I've had to drop the housing and also start clearing it from the top as well as poking and prodding from the bottom.

Chris.....

 

[Jakem]

Ok I will get diggin