Bent Impeller Fin - Snowblower Forum : Snow Blower Forums
Reply
 
LinkBack Thread Tools
post #1 of 18 Old 01-01-2020, 12:32 PM Thread Starter
Junior Member
 
Join Date: Dec 2019
Location: Duluth, MN
Posts: 18
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 1
Bent Impeller Fin

Last night I was snowblowing after a big storm which had some rain and sleet . All that slop subsequently froze up once temps dropped after the storm. When snowblowing some of the fresh snow that now had a hard crust layer to it, suddenly there was a severe shake from the machine when the auger was engaged. Upon further inspection, it turns out one of the impeller fins bent slightly and is now flattened out a little compared to the other 3 fins.

The two pics show the bent fin (the one with the piece of blue painters tape on it) and one of the non bent fins for reference. It looks like a replacement impeller is around $120, so I think I might try to bend the fin back before completely replacing it. I was going to add some heat to it with a torch and see if I can bend it back. I'm assuming I want to avoid banging on it with a hammer to avoid damaging the gears, is that right? Does anyone have any tips for trying to bend this fin back into place?

Is there a trick to get the impeller not to move? Like wedge a piece of wood between a fin and the housing? Any suggestions at all would be extremely helpful. Thank you everyone for your time and help. Happy New Year!
Attached Thumbnails
Click image for larger version

Name:	IMG_1445.jpg
Views:	25
Size:	109.0 KB
ID:	161985   Click image for larger version

Name:	IMG_1444.jpg
Views:	24
Size:	84.9 KB
ID:	161987  
Jwmiller39 is offline  
Sponsored Links
Advertisement
 
post #2 of 18 Old 01-01-2020, 01:23 PM
Senior Member
 
JLawrence08648's Avatar
 
Join Date: Jan 2017
Location: Lawrenceville NJ
Posts: 2,246
Post Thanks / Like
Thanks (Given): 95
Thanks (Received): 192
Likes (Given): 73
Likes (Received): 436
Garage
You need an oxy-acet torch then I would weld a piece of metal behind it for support, do then all, bring it to a friend or a shop, welding, garage, muffler shop.

1986 Ariens ST522, 5hp, 22"
1995 Murray Craftsman 10hp, 29" w. 12" impeller
A 1983 Real John Deere 10hp, 32" w. 12" impeller, 16" auger, 20" high front, cast iron gear box, chains
Noma 9hp, 27" w. 12" impeller
Noma 5hp, 24" w. 12" impeller, 20" high front
Gravely Convertible, 12hp Kohler cast iron, 26" width, 600 lbs of cast iron & steel, 2 speed impeller, 4 ground speeds
Dynamark 8hp, 26", 12" impeller, for sale
Several other 5hp, 8hp, several 2 cycle, all for sale
JLawrence08648 is online now  
post #3 of 18 Old 01-01-2020, 01:58 PM
Moderator
 
Join Date: Mar 2011
Location: Minnesota
Posts: 2,661
Post Thanks / Like
Thanks (Given): 4
Thanks (Received): 145
Likes (Given): 16
Likes (Received): 342
I've straightened a couple of them using a Mapp torch along with a anvil and big hammer. I always had the auger assembly apart so it was a lot easier to do. I'm sure some can do it in place but I'm not one of them.
HCBPH is offline  
post #4 of 18 Old 01-01-2020, 02:01 PM
Senior Member
 
tabora's Avatar
 
Join Date: Mar 2017
Location: Cape Elizabeth, Maine
Posts: 1,163
Post Thanks / Like
Thanks (Given): 42
Thanks (Received): 202
Likes (Given): 121
Likes (Received): 396
To immobilize the impeller, perhaps you can use a C-clamp on another fin with a piece of 2x4 up into the exit hole...

I've had good luck using a MAPP or acetylene torch to heat the area to be bent and then using a large crescent wrench on the end of the piece with the handle angled back away from the direction the force is being applied.
tabora is online now  
post #5 of 18 Old 01-01-2020, 02:09 PM
Senior Member
 
Join Date: Jan 2016
Location: Central NH
Posts: 397
Post Thanks / Like
Thanks (Given): 18
Thanks (Received): 26
Likes (Given): 115
Likes (Received): 96
Pickle fork and a pipe wrench like I mentioned in the other thread.Take off the shute and work down through the hole.I've done it on several blowers.
Mike C. is online now  
Post Thanks / Like - 0 Thanks, 1 Likes, 0 Dislikes
Likes orangputeh liked this post
post #6 of 18 Old 01-01-2020, 02:10 PM
Senior Member
 
oneacer's Avatar
 
Join Date: Jan 2011
Location: Connecticut
Posts: 1,525
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 129
Likes (Given): 0
Likes (Received): 454
I also had the impeller apart, with the use of a rail ( retired from Amtrak, my solid anvil .. ) and a big hammer to persuade it..... no problem.
oneacer is online now  
post #7 of 18 Old 01-01-2020, 02:12 PM Thread Starter
Junior Member
 
Join Date: Dec 2019
Location: Duluth, MN
Posts: 18
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 1
What is the difference between the two torches? A welder friend of mine says he has a Map gas torch I can use.
Jwmiller39 is offline  
post #8 of 18 Old 01-01-2020, 02:22 PM
Senior Member
 
Join Date: Mar 2014
Location: Lowell area, MA
Posts: 3,556
Post Thanks / Like
Thanks (Given): 140
Thanks (Received): 305
Likes (Given): 406
Likes (Received): 730
Oxy-acetylene is much, much hotter than MAPP. O-A can heat steel, it can also cut through it, weld it, etc. MAPP will just get it hot, but can't cut or weld steel. But it's also simpler and safer to use, not to mention cheaper.

Ariens 1024 Pro
Toro Power Clear 221QR
Toro Power Curve 1800
RedOctobyr is online now  
post #9 of 18 Old 01-01-2020, 03:15 PM
Senior Member
 
Join Date: Dec 2018
Location: Near Colorado Springs
Posts: 171
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 19
Likes (Given): 84
Likes (Received): 38
If one is cheap you can easily convert an oxy acetylene torch to run oxy propane instead. I think the only thing needing switched is just the actual torch tip. Oxy propane will cut steel, well the oxygen oxidizes the steel, just need the flame to initially heat it up and if you're good you can cut the fuel and use pure oxygen to continue the cut, it just takes a little longer to preheat the metal with propane.


Mapp gas is hotter than propane when used in the single cylinder propane torch type setups.


When Crescent wrenches were moving production to china, I picked up a few stragglers that were still USA made so I have a 24" a 18" a 15" and many smaller ones of various origin. The 24" and/or 18" would make short work of that WITHOUT heat.


To keep the impeller from rotating I use an F clamp (a style used more in welding, big box stores and Tractor Supply Company carry them) and clamped the clamp to the impeller drum through the chute hole and it kept it from turning while drilling the blades for my impeller "kit" I made up. The only thing I could see is you might have to take one bucket side off and remove that ribbon to get enough room to maneuver the Crescent wrench from the front.
notabiker is offline  
post #10 of 18 Old 01-01-2020, 03:22 PM
Senior Member
 
tabora's Avatar
 
Join Date: Mar 2017
Location: Cape Elizabeth, Maine
Posts: 1,163
Post Thanks / Like
Thanks (Given): 42
Thanks (Received): 202
Likes (Given): 121
Likes (Received): 396
Quote:
Originally Posted by Jwmiller39 View Post
What is the difference between the two torches? A welder friend of mine says he has a Map gas torch I can use.
Butane burns at 2,610 F
Propane burns at 3,590 F
MAP-Pro burns at 3,730 F
Oxy-Propane burns at 4,087 F
Oxy-Hydrogen burns at 5,072 F
Oxy-MAP-Pro burns at 5,200 F
Oxy-Acetylene burns at 6,332 F
tabora is online now  
Post Thanks / Like - 0 Thanks, 3 Likes, 0 Dislikes
Likes notabiker, toromike, micah68kj liked this post
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Snowblower Forum : Snow Blower Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome