rear diffenential

lawdog · 08-05-2010, 10:59 AM

I have a 2003 nomad that has a whine in the rear. Have serviced the rear,replaced the rear bearings,serviced the drive shaft and replaced the u-joint. It is looking like it may be the rear bevel gear. I am now looking at replacing the differential with one probally from ebay. My question is what other years will fit my 2003. I am at work and will have to check back for any answers.
Thanks

They really are proud of the new diffenentials at the dealer.

macmac · 08-05-2010, 12:09 PM

A new differential isn't going to fix bad bevel gears or bearings. Figure out which is making the sounds.

A good diff can whine if the lash is incorrect. the ring and pinion must engage just so, which is tested with dykum a blue stain made to show where these gears ride one another.

The bevel gears can whine too, and if the bearing is bad that will set up a whime as well.

Get the rear wheel off the ground safely and run the engine with a helper. The helper must also run the gears up with the brake on a little to simulate the road. With a tech stethescope or a long rod, you don't get to near that wheel, listen. Make a quick test at each place, no sence frying brakes.

**ringadingh** · 08-05-2010, 04:04 PM

I think any year final drive will fit, but especially the 99-04 models. Id try to narrow down the problem before you use the bike much more.If its the bevel gear youll be doing damage by running it. If its your final drive whining your bevel gear should probably be fine.
A used final drive from Ebay is probably your best bet, providing its a good one.

Stump · 08-05-2010, 04:16 PM

Does the whine get louder with the throttle , what I mean is when you give it more throttle does the whine get louder or does it stay the same?

macmac · 08-05-2010, 08:06 PM

I think Ring is right, but after 04 you get a black painted case, not polished alloy.

Todd · 08-05-2010, 08:56 PM

I would also make damn sure it was the rear diff. vs. some road/tire noise. I noticed some unusual noise from behind me earlier this summer...it would come and go a little...finally realized it was that noisy Elite 3 and when the pavement changed, the noise changed a little. It sounded an awful lot like gear noise at first.

AlabamaNomadRider · 08-05-2010, 10:49 PM

Todd I am with you. My first thought was rear tire. Could be a lot of little things with the tire. I would definitely start with the least expensive to check out and make sure everything is right with the tire.

**jmorrow** · 08-06-2010, 02:31 AM

When the bevel gear bearing in my wife's Nomad went bad, it was alot more noticeable when I let off the throttle. Apparently when the bevel gear first started to whine she thought it was the rear tire up until it really started to howl.

eagle · 08-06-2010, 06:52 AM

I experience a whine which appears to be coming from the rear end and it seems to occur when driving in 4th or 5th gear at only some RPM's. Could this be normal?

**ringadingh** · 08-06-2010, 07:55 AM

Quote:

Originally Posted by Eagle

I experience a whine which appears to be coming from the rear end and it seems to occur when driving in 4th or 5th gear at only some RPM's. Could this be normal?

It can be just tire noise, tires get noisier as they wear, especially while cornering, and sometimes the pavement or concrete you are on can make a noise. It can be normal.

macmac · 08-06-2010, 08:01 AM

Listen to the gear box and bevel gear on a lift with a light drag on the rear brake.

Gear whines are usually a semi constant louder with speed, or start in decel.

Tires can make some scarey noises. Recently I was on the brakes hard and no sooner done all the tires noses from before were different, and the new noise is similar to a car horn on corners, scares me as it is random, and depends on road surface.

I hear what seems to be a car horn, and see nothing, which sets up the panic feeling.

blowndodge · 08-07-2010, 07:12 PM

Quote:

Originally Posted by todd (Nomadis Custodis)

I would also make damn sure it was the rear diff. vs. some road/tire noise. I noticed some unusual noise from behind me earlier this summer...it would come and go a little...finally realized it was that noisy Elite 3 and when the pavement changed, the noise changed a little. It sounded an awful lot like gear noise at first.

I agree with Todd. Check out the cheaper "easier" to explain symptoms before tearing into something not broken. Last year in Custer riding to Devil's tower from time to time I heard a real loud almost pathetic whining sound coming the behind. It took several hours to realize Todd was riding behind me and whining because we had passed up yet another Tastee Freeze without stopping! .....

macmac · 08-08-2010, 07:44 AM

ZAP >>>>>>>>>>>>>>>>>>>>>>>>>>>>> good one BD

**coacha** · 08-08-2010, 10:24 AM

+1 BD

**Kawhead** · 08-08-2010, 01:04 PM

That was cruel but I can't stop ROTFLMAO

And uncalled for too!

08-05-2010, 10:59 AM	#1
lawdog Jr. Member Join Date: Dec 2008 Posts: 32	rear diffenential I have a 2003 nomad that has a whine in the rear. Have serviced the rear,replaced the rear bearings,serviced the drive shaft and replaced the u-joint. It is looking like it may be the rear bevel gear. I am now looking at replacing the differential with one probally from ebay. My question is what other years will fit my 2003. I am at work and will have to check back for any answers. Thanks They really are proud of the new diffenentials at the dealer. Login or Register to Remove Ads
	0

08-05-2010, 12:09 PM	#2
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	rear diffenential A new differential isn't going to fix bad bevel gears or bearings. Figure out which is making the sounds. A good diff can whine if the lash is incorrect. the ring and pinion must engage just so, which is tested with dykum a blue stain made to show where these gears ride one another. The bevel gears can whine too, and if the bearing is bad that will set up a whime as well. Get the rear wheel off the ground safely and run the engine with a helper. The helper must also run the gears up with the brake on a little to simulate the road. With a tech stethescope or a long rod, you don't get to near that wheel, listen. Make a quick test at each place, no sence frying brakes. __________________ 06 1600 Nomad Just call me Mac molon labe come and get it
	0

08-05-2010, 04:04 PM	#3
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	rear diffenential I think any year final drive will fit, but especially the 99-04 models. Id try to narrow down the problem before you use the bike much more.If its the bevel gear youll be doing damage by running it. If its your final drive whining your bevel gear should probably be fine. A used final drive from Ebay is probably your best bet, providing its a good one. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
	0

08-05-2010, 04:16 PM	#4
Stump Sr. Member Join Date: Jul 2010 Location: Scottown ohio Posts: 1,225	rear diffenential Does the whine get louder with the throttle , what I mean is when you give it more throttle does the whine get louder or does it stay the same? __________________ Everyday is a holiday when you love your job, And if you don't you live in a nightmare.
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08-05-2010, 08:06 PM	#5
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	rear diffenential I think Ring is right, but after 04 you get a black painted case, not polished alloy. __________________ 06 1600 Nomad Just call me Mac molon labe come and get it Login or Register to Remove Ads
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08-05-2010, 08:56 PM	#6
Todd Top Contributor Join Date: Aug 2007 Location: Greensboro, NC Posts: 5,915	rear diffenential I would also make damn sure it was the rear diff. vs. some road/tire noise. I noticed some unusual noise from behind me earlier this summer...it would come and go a little...finally realized it was that noisy Elite 3 and when the pavement changed, the noise changed a little. It sounded an awful lot like gear noise at first. __________________ Todd Frazier VBA #0003 VBA National Leader-USA Operations/Garage Moderator - RETIRED 2006 Black Nomad since she was born Greensboro, NC
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08-05-2010, 10:49 PM	#7
AlabamaNomadRider Sr. Contributor Join Date: Jul 2009 Location: Boaz, Alabama Posts: 13,742	rear diffenential Todd I am with you. My first thought was rear tire. Could be a lot of little things with the tire. I would definitely start with the least expensive to check out and make sure everything is right with the tire. __________________ Gene Cross, Jr. Boaz, Alabama KawaNOW/VBA #1181
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08-06-2010, 02:31 AM	#8
jmorrow Join Date: Jul 2007 Location: Beech Grove, Arkansas Posts: 1,884	rear diffenential When the bevel gear bearing in my wife's Nomad went bad, it was alot more noticeable when I let off the throttle. Apparently when the bevel gear first started to whine she thought it was the rear tire up until it really started to howl. __________________ Jim (Dooley) Morrow Stanford, Arkansas 2004 Kawasaki Nomad 1500 VBA #146
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08-06-2010, 06:52 AM	#9
eagle Member Join Date: Oct 2008 Location: Ajax, Ontario, Canada Posts: 291	rear diffenential I experience a whine which appears to be coming from the rear end and it seems to occur when driving in 4th or 5th gear at only some RPM's. Could this be normal? __________________ 2001 Nomad 1500 FI - Sold 😟 2005 Harley Davidson Road King Classic 2003 Honda GL1800 Goldwing
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08-06-2010, 08:01 AM	#11
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	rear diffenential Listen to the gear box and bevel gear on a lift with a light drag on the rear brake. Gear whines are usually a semi constant louder with speed, or start in decel. Tires can make some scarey noises. Recently I was on the brakes hard and no sooner done all the tires noses from before were different, and the new noise is similar to a car horn on corners, scares me as it is random, and depends on road surface. I hear what seems to be a car horn, and see nothing, which sets up the panic feeling. __________________ 06 1600 Nomad Just call me Mac molon labe come and get it
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08-08-2010, 07:44 AM	#13
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	rear diffenential ZAP >>>>>>>>>>>>>>>>>>>>>>>>>>>>> good one BD __________________ 06 1600 Nomad Just call me Mac molon labe come and get it
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08-08-2010, 10:24 AM	#14
coacha Join Date: Dec 2007 Location: Haysville, KS Posts: 6,259	rear diffenential +1 BD __________________ Ron "Coach" Allan, Haysville, KS 1999 Nomad Wine and Red "KawaTanker" 2009 BMW R1200RT 2003 BMW K1200LT "Magic Carpet" DOA 11/7/2015 VBA #00291 IBA # 41995 DS #320 '08 Elkins, WV; '09 Helen, GA; '09 Custer, SD; '10 Stanton, VA; '11 Maggie Valley; '12 Townsend, TN; '13 Estes Park; '13 Blairsville, GA; '15 Eureka Springs; '16 Helen; '18 Custer, SD
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08-08-2010, 01:04 PM	#15
Kawhead Join Date: Jun 2008 Location: 6th Floor up at the The Nervous Hospital up in East Central State, NC Posts: 7,454	rear diffenential That was cruel but I can't stop ROTFLMAO And uncalled for too! __________________ ??-Mar.2,2012 "Rocky" My Beloved Dog RIP Mike Tripp VBA#767 '96 800 Vulcan Classic 06 1600 Nomad 07 1600 Nomad "The shoes you buy at the Salvation Army is already been broke in"- Aunt Kawhead
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