Can some please explain Proper water flow?
#1
Can some please explain Proper water flow?
I have a 1994 5.7L mercruiser with alpha drive gen 2. I get a lot of water out the 2 transom ports but very little out the propeller exhaust. Is this proper or is perhaps something about clogged up. I'm not really running hot but I do believe I'm running warmer than it should. Has new thermostat, water pump and impeller. All quicksilver brands. Thank you 😁
#2
Registered
Why do you think you are running warning? What is the temp of the engine?
#3
Starboard Manifold - 175/Riser - 115.
Port Manifold - 170/Riser - 104. Temp gauge reading 160. I get tons of water flow out of the 2 holes on the transom but I feel like water flow could be better out the exhaust at my prop. Maybe the water exit at the prop is suppose to be very minimal. I don't know. I guess I'm trying to figure out if the 2 transom ports are actual exhaust or just the elbow discharge and if the exhaust going to the prop is for the actual engine
Last edited by n.shift; 06-14-2024 at 10:19 PM.
#4
Gold Member
Gold Member
If you’re getting tons of water flow out of the dumps and you’re sure that’s last in line I wouldn’t worry about how much is coming out of the prop, particularly if the dumps are past the temp gauge sensors which they SURELY should be.
Are you SURE you have good flow? Even with new pump and impeller you don’t have any blockage? Transom assembly water hoses are notorious for corroding and causing poor water flow…..
do temps keep building or just plateau at 170?
blockage in your coolers? You can back flush them if needed.
ABSOLUTELY sure it’s a 140 stat? Wouldn’t be the first time I’ve gotten a mismatched part in the box.
Are you SURE you have good flow? Even with new pump and impeller you don’t have any blockage? Transom assembly water hoses are notorious for corroding and causing poor water flow…..
do temps keep building or just plateau at 170?
blockage in your coolers? You can back flush them if needed.
ABSOLUTELY sure it’s a 140 stat? Wouldn’t be the first time I’ve gotten a mismatched part in the box.
#5
Registered
Is this on the hose or boat in the water?
#7
If you’re getting tons of water flow out of the dumps and you’re sure that’s last in line I wouldn’t worry about how much is coming out of the prop, particularly if the dumps are past the temp gauge sensors which they SURELY should be.
Are you SURE you have good flow? Even with new pump and impeller you don’t have any blockage? Transom assembly water hoses are notorious for corroding and causing poor water flow…..
do temps keep building or just plateau at 170?
blockage in your coolers? You can back flush them if needed.
ABSOLUTELY sure it’s a 140 stat? Wouldn’t be the first time I’ve gotten a mismatched part in the box.
Are you SURE you have good flow? Even with new pump and impeller you don’t have any blockage? Transom assembly water hoses are notorious for corroding and causing poor water flow…..
do temps keep building or just plateau at 170?
blockage in your coolers? You can back flush them if needed.
ABSOLUTELY sure it’s a 140 stat? Wouldn’t be the first time I’ve gotten a mismatched part in the box.
Last edited by n.shift; 06-15-2024 at 09:49 AM.
#8
Gold Member
Gold Member
I was referring to coolers for things like oil, power steering, fuel coolers, etc…..
I forgot this was an alpha so I’m not sure water flow through the Transom Assembly on that model, but I still think it comes up through the transom assembly and likely has a hose that can constrict…..
I forgot this was an alpha so I’m not sure water flow through the Transom Assembly on that model, but I still think it comes up through the transom assembly and likely has a hose that can constrict…..
The following 2 users liked this post by Ryanw10:
Bondo (06-19-2024), underpsi68 (06-15-2024)
#10