final drive - Kawasaki Vulcan Forum : Vulcan Forums
 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 08-28-2016, 09:52 PM Thread Starter
Senior Member
 
Join Date: Mar 2016
Gender: Male
Posts: 107
final drive

I'm changing the final drive oil in my 04 nomad.
1.What would cause the old oil to be milky?
2.The book calls for sae 90,cycle gear sold me 80/90,said it would work,is that true?
My thought is to change fluid,ride a few miles and change it out again until fluid clears up.
The bike is new to me so I have no history.
diver dan is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 08-28-2016, 10:35 PM
Top Contributor
 
Romans5.8's Avatar
 
Join Date: Aug 2011
Location: Missouri
Year/Make/Model: 2014 Kawasaki Vulcan Vaquero ABS SE
Displacement/CC's: 1700
Color: Orange SE
Gender: Male
Posts: 7,593
Garage
80w90 is fine. The "80w" part just refers to the weight of the oil when cold. Once it's warmed up it'll be 90 weight.

Milky color generally means water. Look for any oil leaks, especially around seals. Even if it isn't dripping oil; a part of the shaft caked in grease would indicate a slow leak. I suspect you've got a hardened or worn seal somewhere that's letting oil out and water in. I don't know enough about your model Nomad to know if there's a point where a coolant leak could weep it's way into the driveshaft; perhaps someone more knowledgeable on that can share. I suspect though if that were the case; you'd have white crusty deposits somewhere on the engine, transmission or driveshaft (indicating a coolant leak) and/or milky engine oil.

Flushing as you describe should get any water that's there out; or at least most of it. But the issue needs to be addressed or it'll repeat itself.

"8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us."

Romans 5:8 (NIV)

2014 Kawasaki Vulcan 1700 Vaquero ABS SE
iPod Connector Kit, Kuryakyn Highway Pegs, Mustang Touring Seat, Marvella's Hitch, Kuryakyn Trailer Wiring Kit, Haul-Master Tag-a-Long Cargo Trailer

2011 Honda Shadow Aero 750 (Wife's)

Memphis shades quick-release windshield, OEM Solo Seat, Mustang Fender Bib, Chrome Solo Luggage Rack

Past: 2006 Vulcan 900 Classic LT
Romans5.8 is offline  
post #3 of 8 (permalink) Old 08-28-2016, 10:55 PM Thread Starter
Senior Member
 
Join Date: Mar 2016
Gender: Male
Posts: 107
Thanks Romans,I just rebuilt the engine,so no coolant leak now,but there is grease caked around the final drive.I do know the previous owner left it sitting outside for quite awhile.I guess I'm going to learn how to replace the seal next.Thanks again.
diver dan is offline  
 
post #4 of 8 (permalink) Old 10-09-2016, 09:52 PM
Junior Member
 
Join Date: Sep 2016
Location: Philippines
Year/Make/Model: VN 1500 Classic
Displacement/CC's: 1500
Color: Black
Gender: Male
Posts: 18
As Romans has correctly pointed out ''milky'' = water contamination. However, it doesn't mean that WATER is getting in. Often a poor seal allows AIR into the system. Air contains water. If you add exposure to heat, you get ''condensation''. So, over a period of time, the air can become water once inside. But i agree it is a seal somewhere that is causing the problem. The fact that you said it was sitting a while would fit in with the condensation theory.
Don't spend hours looking for a place that water may be getting in..if it's an air leak, you will never find it...just replace the seals. But if used regularly, condensation shouldn't occur.

Last edited by RedHorse; 10-09-2016 at 10:19 PM.
RedHorse is offline  
post #5 of 8 (permalink) Old 10-09-2016, 11:37 PM
Top Contributor
 
Join Date: Apr 2009
Posts: 10,417
Final drive is vented to the outside.
If it were not, when the unit got hot, it would blow oil out every seal.
sfair is offline  
post #6 of 8 (permalink) Old 10-10-2016, 02:31 PM Thread Starter
Senior Member
 
Join Date: Mar 2016
Gender: Male
Posts: 107
Thanks guys,plan on changing it again soon and see if it cleared up.Cleaned it up and I haven't seen any residue yet,but I haven't been riding much lately.
diver dan is offline  
post #7 of 8 (permalink) Old 01-06-2017, 03:42 AM
Junior Member
 
Join Date: Jan 2017
Posts: 5
Thanks Romans It will help me a lot.
StephenWeigle is offline  
post #8 of 8 (permalink) Old 01-06-2017, 05:44 AM
Top Contributor
 
btom's Avatar
 
Join Date: Mar 2016
Year/Make/Model: '05
Displacement/CC's: 800
Gender: Male
Posts: 744
Garage
For final drive gear case oil on your Nomad, get a quart of Amsoil Severe Gear SAE 75w-90 Synthetic Extreme Pressure Lubricant and also a manual pump which makes filling the case easier. The cause of old oil to be milky is water contamination.

Thunder Mfg teardrop 40's K&N 170MJ 48PJ 2.75turns DynoJet Needle DNO106 2nd notch V&H Cruzers Aeromach risers Michelin Commander IIs Shell Rotella 5w40 Wix 51358 17T/40 Sprockets
btom is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan Forum : Vulcan 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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