M8 tunnel vibration

mainemountainrider · 01-06-2013, 06:11 PM

Getting a pretty noticable tunnel vibration. Rode some groomed trails today, about 50 miles, which I hardly ever do, but there is a pretty didtinct vibration, really noticable be my left foot. Feels like someone holding a sawzall against the tunnel. Gets worse the faster you go. All skid wheel bearings are good. Changed dd fluid begining of the year. Picked up the sled over the summer with 1700 miles. Did not crack open the case and check the bearings. Is this symtematic of dd bearings? What else should I check? Noticed something last weekend, but we usually ride in the powder and it was hard to pinpoint. Thanks

silverram323 · 01-07-2013, 01:29 AM

I would take a real good look in the dd case, im thinking you might have some bearing issues

Sent from my DROID X2 using Snowmobile.com App

mainemountainrider · 01-07-2013, 08:07 PM

Yeah, i'm gonna pull it apart and see what I see.

shoelessjoe · 01-08-2013, 10:29 AM

^^

That was the only symptom I noticed on mine when it was bad. Very slight vibration, pulled the DD apart and the bearing was shot.

mainemountainrider · 01-08-2013, 06:52 PM

Pulled the drive bearing was shot. Also gonna put in a BDX anti stab kit aswell cause I run my limiters all the way out. Think that might be some of what I'm feeling aswell

silverram323 · 01-09-2013, 02:41 AM

Good deal, you found the problem, there are a ton of threads on this bearing issue.

mainemountainrider · 01-09-2013, 08:31 PM

Yeah, I guess I should have pulled it apart over the summer! Oh well, atleast it should be good now

shoelessjoe · 01-10-2013, 06:28 AM

Quote:

Originally Posted by mainemountainrider

Pulled the drive bearing was shot. Also gonna put in a BDX anti stab kit aswell cause I run my limiters all the way out. Think that might be some of what I'm feeling aswell

Anti-stab is on my short list of things to do also.

pshirek · 03-08-2013, 02:05 PM

Mainemountain I just commented on another thread (sorry for pestering). What bearing did you go with? Lots of guys doing lots of different things from switching sizes to machining and all...

01-06-2013, 06:11 PM	#1 (permalink)
mainemountainrider Advanced Member Join Date: Sep 2012 Posts: 31 Current Sled(s): 2010 M8 Sno Pro 153 Wifey-600RMK Previous Sled(s): Verticle Escape 800, 03 SKS 700, 02 Renegade 800 Location: Newcastle, Maine Favorite Riding Area: Jackman maine backcountry 12-13 Mileage: 300 woods 11-12 Mileage: 600 10-11 Mileage: 1500 Age: 32 Riding Since: 1985	M8 tunnel vibration Getting a pretty noticable tunnel vibration. Rode some groomed trails today, about 50 miles, which I hardly ever do, but there is a pretty didtinct vibration, really noticable be my left foot. Feels like someone holding a sawzall against the tunnel. Gets worse the faster you go. All skid wheel bearings are good. Changed dd fluid begining of the year. Picked up the sled over the summer with 1700 miles. Did not crack open the case and check the bearings. Is this symtematic of dd bearings? What else should I check? Noticed something last weekend, but we usually ride in the powder and it was hard to pinpoint. Thanks __________________ 2010 M8 Sno Pro 153 SLP clutching and can Powder Hound Skiis

01-07-2013, 08:07 PM	#3 (permalink)
mainemountainrider Advanced Member Join Date: Sep 2012 Posts: 31 Current Sled(s): 2010 M8 Sno Pro 153 Wifey-600RMK Previous Sled(s): Verticle Escape 800, 03 SKS 700, 02 Renegade 800 Location: Newcastle, Maine Favorite Riding Area: Jackman maine backcountry 12-13 Mileage: 300 woods 11-12 Mileage: 600 10-11 Mileage: 1500 Age: 32 Riding Since: 1985	Yeah, i'm gonna pull it apart and see what I see. __________________ 2010 M8 Sno Pro 153 SLP clutching and can Powder Hound Skiis

01-08-2013, 06:52 PM	#5 (permalink)
mainemountainrider Advanced Member Join Date: Sep 2012 Posts: 31 Current Sled(s): 2010 M8 Sno Pro 153 Wifey-600RMK Previous Sled(s): Verticle Escape 800, 03 SKS 700, 02 Renegade 800 Location: Newcastle, Maine Favorite Riding Area: Jackman maine backcountry 12-13 Mileage: 300 woods 11-12 Mileage: 600 10-11 Mileage: 1500 Age: 32 Riding Since: 1985	Pulled the drive bearing was shot. Also gonna put in a BDX anti stab kit aswell cause I run my limiters all the way out. Think that might be some of what I'm feeling aswell __________________ 2010 M8 Sno Pro 153 SLP clutching and can Powder Hound Skiis

01-09-2013, 08:31 PM	#7 (permalink)
mainemountainrider Advanced Member Join Date: Sep 2012 Posts: 31 Current Sled(s): 2010 M8 Sno Pro 153 Wifey-600RMK Previous Sled(s): Verticle Escape 800, 03 SKS 700, 02 Renegade 800 Location: Newcastle, Maine Favorite Riding Area: Jackman maine backcountry 12-13 Mileage: 300 woods 11-12 Mileage: 600 10-11 Mileage: 1500 Age: 32 Riding Since: 1985	Yeah, I guess I should have pulled it apart over the summer! Oh well, atleast it should be good now __________________ 2010 M8 Sno Pro 153 SLP clutching and can Powder Hound Skiis

01-07-2013, 01:29 AM	#2 (permalink)
silverram323 Super Advanced Member Join Date: Nov 2004 Posts: 1,609 Current Sled(s): 09 xf 800 141 x 1.6" Previous Sled(s): all cats Location: Forest Lake / Wyoming Area, Minnesota Favorite Riding Area: Anywhere its DEEP 11-12 Mileage: 80 Age: 33 Riding Since: 1993	I would take a real good look in the dd case, im thinking you might have some bearing issues Sent from my DROID X2 using Snowmobile.com App

01-08-2013, 10:29 AM	#4 (permalink)
shoelessjoe Super Advanced Member Join Date: Dec 2006 Posts: 746 Current Sled(s): 2010 X-fire 800LE Previous Sled(s): 02 XCSP 800 Location: Just nort of the "D" Favorite Riding Area: Newberry, Caddy Age: 33	^^ That was the only symptom I noticed on mine when it was bad. Very slight vibration, pulled the DD apart and the bearing was shot.

01-09-2013, 02:41 AM	#6 (permalink)
silverram323 Super Advanced Member Join Date: Nov 2004 Posts: 1,609 Current Sled(s): 09 xf 800 141 x 1.6" Previous Sled(s): all cats Location: Forest Lake / Wyoming Area, Minnesota Favorite Riding Area: Anywhere its DEEP 11-12 Mileage: 80 Age: 33 Riding Since: 1993	Good deal, you found the problem, there are a ton of threads on this bearing issue.

03-08-2013, 02:05 PM	#9 (permalink)
pshirek Member Join Date: Dec 2010 Posts: 10	Mainemountain I just commented on another thread (sorry for pestering). What bearing did you go with? Lots of guys doing lots of different things from switching sizes to machining and all...

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