yet ANOTHER impeller question

[dkellogg3]

So..... I replaced my Alpha one Gen II Impeller recently. I did this work using the manual the I have (#18). Nowhere in there does it mention putting perfect seal on the gaskets, so naturally I didn't.

Then, today I was perusing this document: http://www.4shared.com/document/eEm9dw5y/A1G2_Raw_water_pump_repair.html?
And noted the recommendation for perfect seal. My top gasket had a red ring around the perimeter of it where it contacts the housing. I greased up the bolts and torque them to 7.5 ft-lb instead of 5 since I had greased them. I also found that the face seal wasn't in great shape, but the Sierra kit I got didn't include a new.one, so I put it back together as is.

So my question is do I need to take the sucker apart again for the sealant? Does the fact that the face seal isn't great affect your opinion?

Thanks on advance!

 

[HT32BSX115]

Re: yet ANOTHER impeller question

Howdy,

The following would bother me a little......

1. Apply Quicksilver Perfect Seal to the small hole gasket. Place the small hole gasket, the
face plate and the large hole gasket onto the gear case.
NOTE: Add Quicksilver Perfect Seal to the gasket to seal it and prevent water from seeping
into the gear housing.

I would do it like the service manual recommends. If that means pulling it apart and REPLACING the gaskets, then so be it.


Cheers,


Rick

 

[Don S]

Re: yet ANOTHER impeller question

So..... I replaced my Alpha one Gen II Impeller recently. I did this work using the manual the I have (#18). Nowhere in there does it mention putting perfect seal on the gaskets, so naturally I didn't.

That is an engine manual, and does not give any information on replacing the impeller in the outdrive.
The link you posted is info from the manual for the outdrive (#14 for the Gen II drives).
Take your boat for a test run, if you don't have a problem with overtemp above 3000 rpm, you don't have to worry about not using the sealer. One other thing the sealer does, is prevent corrosion on the lower housing.

 

[dkellogg3]

Re: yet ANOTHER impeller question

Yeah, as soon as I got home and saw the manual on the counter I realized I got the engine and outdrive #s mixed up. The hardcopy I have has ne reference to the sealant.

So if I were doing the sealant, would it be: lower unit, sealant, small hole gasket, sealant, wear plate, sealant, large hole gasket sealant, housing? Or just sealant, small hole, plate, large hole, sealant, housing?

 

[Don S]

Re: yet ANOTHER impeller question

Light coat of sealant on both sides of the small hole gasket only. Per the instructions.