Alpha 1 Gen II Water Pump V-Ring

[gjcombs]

This relates to my earlier post on replacing a water pump
http://forums.iboats.com/showthread.php?t=391107

I am going to order this kit to do this,
http://www.iboats.com/Water-Pump-Im...e-Outboard-GLM-12042-Sierra/dm/view_id.171969

My manual says to replace a seal that sets on top of the pump housing. However, I can't find it to order and it is not included! It has V-RING, V-22, 1557-3 on the side.

Attached is an image of a similar type and where it sets.

 

[zbnutcase]

Re: Alpha 1 Gen II Water Pump V-Ring

You can reuse the old one if in good shape.

 

[sickwilly]

Re: Alpha 1 Gen II Water Pump V-Ring

A good kit should not only come with that seal, but come with a spacer for installing it correctly. Its a piece of plastic that fits over the seal and you push it down with it, and it makes sure you have it installed correctly.

Not wanting to hurt iboats sales, but I would go to you local merc dealer. They keep a ton of them in stock.

PS: Mine looked good enough to reuse -- but without that spacer you are gambling that you got it back on correctly.

 

[tractoman]

Re: Alpha 1 Gen II Water Pump V-Ring

If you get a quicksilver impeller repair kit it'll come with the seal and the installation tool. It's called a face seal. Kit Part # 47-43026Q06

 

[gjcombs]

Re: Alpha 1 Gen II Water Pump V-Ring

Thanks, all.

So what does that spacer do? Can you just press it down to the pump housing? My manual says if you have a washer handy, that could work.

 

[tractoman]

Re: Alpha 1 Gen II Water Pump V-Ring

The face seal is supposed to be installed at a certain height above the pump housing. The little plastic ring (installation tool) allows you to slide it down the driveshaft and set it at the proper height above the pump. I have not seen in the mercruiser manual the advice of using a washer, which makes me think you are not working with the Mercruiser manual. Download it for free in the adults only sticky at the top of this forum. There are great diagrams, and installation instructons for this. It may help bring some clarity to this for you.

 

[sickwilly]

Re: Alpha 1 Gen II Water Pump V-Ring

I am no mechanic or engineer, but when I replaced mine, I thought that seal looked like the weak link of the entire system. It sits on a shaft at a certain height, staying put because of the tightness of the seal around the shaft, with the bottom having a spring load against the top of the steel water pump housing essentially from the stiffness of the rubber, while it spins around and around, creating friction.

If that seal goes, water is going where it is not suppose to be.

I would not take a chance on getting it wrong.

 

[achris]

Re: Alpha 1 Gen II Water Pump V-Ring

...
If that seal goes, water is going where it is not suppose to be.....

If the seal fails all that will happen is a little air COULD be sucked into the impeller. You MIGHT notice a slight rise in engine temp, maybe...

You have more risk of problems if you don't use the alignment pins when putting the housing back on.

That said, I use a new seal every time...

Chris..........

 

[sickwilly]

Re: Alpha 1 Gen II Water Pump V-Ring

That is good to know -- I assumed water would come out, not air come in. So its not such a weak link after all.

 

[Don S]

Re: Alpha 1 Gen II Water Pump V-Ring

My manual says if you have a washer handy, that could work.

Scared to ask, but what manual do you have? Seloc or Clymers?

You do realize there are OEM Service manuals available for download up in the adults only sticky don't you?

 

[sjm32157]

Re: Alpha 1 Gen II Water Pump V-Ring

I was replacing my impeller this afternoon and struggling with this face seal. This seal just rides on top of the water pump housing? I have a new seal and tool.

 

[achris]

Re: Alpha 1 Gen II Water Pump V-Ring

Download the manual... It's all detailed in there, complete with pictures.

 

[boat127]

Re: Alpha 1 Gen II Water Pump V-Ring

just slide the seal on the shaft in the proper manner then jsut slide the tool over it until it hits the pump housing and remove the tool

 

[achris]

Re: Alpha 1 Gen II Water Pump V-Ring

Chris.........