Noma 9 HP 27" Snowblower re-engineering?

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  #1  
Old 01-15-08, 01:20 PM
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Location: Hudson,NH
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Noma 9 HP 27" Snowblower re-engineering?

Just bought 2nd hand a 9HP 27" snow blower. Slower discharge
than neighbor's Noma 8HP 27". Mod. No. G2794010
Code: 6279, Ser No. S004937339830 by Murray of Jackson,
Tenn.
This unit has only 3 impeller blades inside the 12" disc and
does not launch the snow as well as the 4 blade on the 8HP.
The Question is whether it's doable / practical to mount
a newer impeller to boost discharge. The 3 blade has a tri-
angular backing plate with reverse dimples to keep it's
position.
Would upgrading the impeller resolve the issue, or would it
also require engineering the discharge throat area for better
velocity? (wider, tapered gently)
Would it make better sense to just get a newer model and
not have the fun of refitting this one? Machine plows a wall
of snow ahead of itself although vigorous auger churning is
evident from operator's vantage. So, shear pins intact just
poor (slow) discharge.
All comments welcome, though prefer constructive.
 

Last edited by bamboo; 01-15-08 at 01:23 PM. Reason: balance carriage return
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  #2  
Old 01-15-08, 01:35 PM
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Can you verify the augers are in fact turning under load?? Try to get someone to look for you. It's possible the gears in the auger drive box are stripped. It shouldn't be pushing the snow ahead of it. Also check the goverened speed of the engine. It should be 3600 R.P.M. max. Make sure the impeller belt is in good shape & the correct one. Also check the tension when engaged. Is there a lot of clearance between the Impeller & the drum? If so, maybe a new impeller is the answer, or a kit is available to seal the impeller better,(don't know from where tho, sorry) I can't advise on the other impeller. Do a lot of measuring before you try it or you may be stuck with an expensive part & sit on it with the hopes your neighbor will need it!! Good luck, Roger
 
  #3  
Old 01-15-08, 02:09 PM
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Smile Noma 9HP Snow Blower

Auger churning obvious from operator's viewpoint as slight
tossing of snow showing at ends of auger housing. No apparent
backlash of either augers or impeller. Belt slack
when at rest, but impeller and augers rotating well.
From the auger housing back into the impeller housing there
is a considerable step. From auger housing to impeller blade
messures 5/16 to 3/8. Inside impeller housing to impeller blade
is 9/16 to 5/8.
Did these reline kits come from the manufacturers? Or did
someone do them as home repair or after market? Have you
seen one and could it be replicated?
Thanks, good input. Very to the point.
 
  #4  
Old 01-15-08, 05:42 PM
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???Auger churning obvious from operator's viewpoint as slight
tossing of snow showing at ends of auger housing.??? Pushing snow ahead of itself??
These parts concern me. The gears inside the housing may be stripped & under load not driving the augers properly. You should see more than a "slight tossing" of snow if the machine is working. Get someone to watch @ a safe distance, "Cus when the gear box fails, they will sometimes try to drive the auger by catching the worm gear at times, yet feel good with your hand. They kinda "Slip & Grip"
The measurements you gave us, this should throw snow. The kits I've seen are offered aftermarket on the net, but I never paid attention to them, Sorry. Try to Google it, they shouldn't be hard to find. I've never seen one in person, just one of the ads you see & think "Why didn't I think of that??"
 

Last edited by hopkinsr2; 01-15-08 at 05:45 PM. Reason: More info
  #5  
Old 01-16-08, 09:19 AM
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Thumbs up Snow Thrower Re-Engineering

While browsing discussion forums, I've hit upon a kit to up
the discharge performance of snowblowers. Either Google
"Snowblower Impeller Kit Clarence" or the URL is:
www.smllengs.tripod.com to browse their pages.
Appears to be a good common sense approach (many tes-
tamonials & for cheap money).
 
  #6  
Old 01-23-11, 02:11 PM
Join Date: Jan 2011
Location: USA
Posts: 2
I have a Noma Performance Snowblower (10 HP Engine) with Tecumseh Snow King and is a 27" auger -
The Drive Chain fell off ( this is like a bike chain - the snow blower does not move forward or backward) - I am not able to re-install the chain around the axe no matter how much I wiggle it or try to force it the way one would re-install a bike chain - The chain is in a fine condition. Has any one have an idea how to re-install the chain ?
 
  #7  
Old 01-23-11, 03:07 PM
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Location: St. Louis
Posts: 2,333
Find the master link in the chain, remove it, thread the chain through and re-attach the master link. Have a good one. Geo
 
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