Water Vents on Lower Unit: What if Water is Coming Out???

[thompsdw]

My new boat has an 2001 Alpha 1 Gen II drive on it. Today I did a drive fluid change and changed the water pump impellar. In the process of changing the oil, I started the boat on a hose to brind the operating temperature up to normal. While flushing, I noticed that the two vents on the front of the drive were venting (flowing) water out of the lower unit. My previous Alpha did not have these vents. Is this normal, or did I screw up the stab of the water pump tube?<br /><br />Please help??????

 

[rodbolt]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

dude<br /> I cant tell by the description. if ya missed the tube it will over heat very rapidly. do you have water coming from the relief ports on the transom assy> my bet is your paranoid but I dont blame ya. I get paranoid all the time<br /> good luck and keep posting

 

[thompsdw]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

You are absolutely correct. I was pumping water and cooling the engine. I did get water from both sides of the transom and the motor did not overheat. I just cannot imagine why water would vent from the lower unit unless the water tube is leaking??? Why would it???

 

[Bondo]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

you have water coming from the relief ports on the transom assy>

It's Supposed Too.....

 

[thompsdw]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

Thanks Bondo. This is my first 8 cylinder. What is the source of the water and how do these ports work? You have me curious now ....

 

[Bondo]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

It's the Earliest exhaust escape path.........<br />Before it's routed down thru the outdrive......

 

[thompsdw]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

Bondo,<br /><br />Here is a twist. When I first turn on the flush water with the muffs. Water starts to dribble out of the vents before the engine is running. Should it do that as well?

 

[rodbolt]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

the lower has some drains to drain the seawater pump and lines in the lower. are these what your refering to ?

 

[thompsdw]

Re: Water Vents on Lower Unit: What if Water is Coming Out???

Yes, I believe that is what they are. There is one on either side of the lower unit just under the top of the lower unit toward the front of the drive. Here is a picture of the vent. It is circled in red.