Alpha 1 Gen 2 Waterpump Install Question

jmcdona

Cadet
Joined
Jul 25, 2007
Messages
6
I have a 1991 alpha1 gen 2 that I'm about to replace the Waterpump assembly and shiftshaft bushing on. I have a few questions before I proceed:

1) I've read in the factory manual that you need to rotate the driveshaft clockwise while lowering the waterpump housing over the impeller. My drive shaft seems to be in a locked position regardless of the shift shaft position. Do I need to just force the issue? Please note that I have not yet removed the shiftshaft bushing assem, or the old waterpump. I'm doing some prelimnary checks prior to replacing it.

2) There are a couple of references of Perfect Seal. Are there any substitutes that can be obtained?

3) Is it recommended to use bellows adhesive to retain the quad seal (the quad is the orange colored o-ring in the picture)?

DSCN4548.jpg
 

stonyloam

Vice Admiral
Joined
Mar 13, 2009
Messages
5,830
Re: Alpha 1 Gen 2 Waterpump Install Question

If you turn the shift shaft half way CCW it should be in neutral.
NAPA (Permatex) aviation sealant.
I just use a dab of grease.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Alpha 1 Gen 2 Waterpump Install Question

1) I've read in the factory manual that you need to rotate the driveshaft clockwise while lowering the waterpump housing over the impeller.
That is done to get the impeller vanes turned the right direction while installing.

My drive shaft seems to be in a locked position regardless of the shift shaft position.
Friction of the impeller may keep the shaft from turning easily, you also have it in forward gear in the picture. If the prop is still on and blocked so it can't turn, that will also keep the shaft from turning.

3) Is it recommended to use bellows adhesive to retain the quad seal (the quad is the orange colored o-ring in the picture)?
I always do, cheap insurance and I always had it handy, so why not.
It can cost you a drive if it gets knocked out of position and you don't notice it. Your choice.
 
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