Lopi Pioneer Bay Exhaust Blower fan Replacement

[heat seeker]

I tried that with mine, but the vibration just undid the crimps enough so it'd rattle again. It was sorely out of balance, you could hear the vibration throughout most of the house, since it got transferred to the floor since there were no rubber bushings. The spring to the stove trick worked for the rattle, but not the vibration.

 

[Don2222]

All you needed to do was hammer the crimps on the casing to stop the vibrating. Yes? Whats with all the clamping? Where the black meets the zinc is where your problem is.

Hi Scott
I tried hammerimg the crimps, but it did not fix it like the Fasco in the US stove. So putting the clamps and the hi temp silicon rubber helped alot. The sound of the motor after that still showed it's age. It is 15 years old and if you pull out on the impeller there is way too much play. Sometimes on startup you can here the blades scrape the sidewall! Since this is a rebuild I am replacing it. So my new problem is the hole alignment on the Fasco Generic Replacement Motor. Have you had success in drilling out the holes? See pics above of new motor.

 

[Don2222]

I tried that with mine, but the vibration just undid the crimps enough so it'd rattle again. It was sorely out of balance, you could hear the vibration throughout most of the house, since it got transferred to the floor since there were no rubber bushings. The spring to the stove trick worked for the rattle, but not the vibration.

Interesting. I also noticed that many new combustion blowers are not shock mounted anymore. Maybe the Lytherm gasket helps absorb some on the shock and vibration but not all of it?

 

[heat seeker]

The gasket probably absorbs some shock, but I'm thinking they eliminate the grommets for cost reasons, or perhaps the grommets deteriorate with the heat and cause problems…? I'm curious, but not curious enough to spend almost $200 to get a motor with grommets, if I can find one .

 

[Don2222]

The gasket probably absorbs some shock, but I'm thinking they eliminate the grommets for cost reasons, or perhaps the grommets deteriorate with the heat and cause problems…? I'm curious, but not curious enough to spend almost $200 to get a motor with grommets, if I can find one .

Well most of the new motors do not have rubber shock mounts on the combustion blower. The convection blowers do!

Anyway, I broke down and spent the $90 for the generic Fasco replacement motor.
Steps involved here.
Old Motor
1. Cut motor shaft under impeller fan blades.
2. Remove motor serrated nuts and remove mounting plate.
3. Using VHT Flame Proof Flat black spray paint, paint both sides of 6" mounting hub to make it look new again.

New Motor
1. Remove impeller with allen wrench
2. Remove motor serrated nuts and remove fan housing.
3. Drill out mounting holes to 17/64 and remove burrs.
4. Mount motor to plate using serrated nuts and added washers for even pressure.
5. Cut new Lytherm gasket and scrape and clean off old gasket on exhaust fan housing.
https://www.hearth.com/talk/threads...ower-hi-temp-lytherm-gasket-from-sheet.86680/
6. Cut off female quick disconncts and extra wire. (New wires are too long!)
7. Crimp new Male quick disconnects on to wires to plug into stove wire harness
8. Mount new exhaust fan into housing with new Lytherm gasket with 6 serrated nuts.
9. Plug in new wires into stove harness

See new video of how it sounds! Nice oil ports too - see last pic below

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[Don2222]

Hello

I am beginning to like this Fasco Generic Combustion Blower More and More.

It has 3 Oil ports to service once a year! This will make the blower last longer I am sure!

See pic