• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Back tire leaking oil around Final Gear Case!

  • Thread starter Thread starter ddelpriore
  • Start date Start date
D

ddelpriore

Guest
Help! After taking a drive on the highway, I noticed my 1981 Suzuki gs850g back tire was covered with gear oil. It actually looked red which I presumed was from the old moly paste. When I got home, I removed the tire and final case. the final case cover did have oil all over, but I'm curious if the large oil seal in the Case Cover has leaked. I ordered a new oil seal just in case. Has anyone else dealt with an oil covered back tire??? The sealant behind the case cover was strong and the o-ring around the large bevel gear was in good condition.

Thanks,
Derek
 
ddelpriore said:
Help! After taking a drive on the highway, I noticed my 1981 Suzuki gs850g back tire was covered with gear oil. It actually looked red which I presumed was from the old moly paste. When I got home, I removed the tire and final case. the final case cover did have oil all over, but I'm curious if the large oil seal in the Case Cover has leaked. I ordered a new oil seal just in case. Has anyone else dealt with an oil covered back tire??? The sealant behind the case cover was strong and the o-ring around the large bevel gear was in good condition.

Thanks,
Derek
Click to expand...

yes, I've had a couple leak of several different shaft bikes. Both times on mine it was the large seal that went. There is an o-ring that is worth replacing while you're in there as well. Also make sure you check the bearings, not sure how many miles are on your bike. Check out the parts fiche

http://www.partsoutlaw.com/oemparts/a/suz/50d40324f8700230d8b4e9e8/propeller-shaft-final-drive-gear
 
Is this a new to you bike? Red oil? Drain some out of pumpkin and hope that someone didn't use ATF instead of 80-90 hypoid. Might as well change that o-ring while you're changing the oil seal. And check splines for wear to be safe.
 
"Back tire leaking oil" eh? I thought tires were supposed to be filled with air?:p
 
The oring between the two halves is probably giving up the ghost. once you take all the perimeter bolts out around the edge of the pumpkin, youll see 2 small 6 MM bolt holes directly across from each other. Screw in two bolts and go evenly till he two halves seperate.
 
I've replaced a couple of these. In one case, I think it was overzealous application of moly paste -- that stuff is great on hard metals, but it's abrasive if it gets onto rubber.

Anyway, I wandered the plumbing aisles of Lowes with the seal until I found a plumbing adapter that fit the perimeter of the seal. I used that and a rubber mallet to drive in the new seal and no problems since.
 
Thanks for the replies! Any idea where to find an O-ring replacement? That part is now "obsolete" on Partzilla. My bike has 55,000 miles on it, so its probably due.
 
Oddly, the o-ring used on shaft 650 is still available p/n 09280-00015' while your p/n 09280-00014 is not. That last digit difference makes me wonder if they are interchangeable. Someone will know.
 
As I understand part number lore, when they used the same part on a next year or different model bike, they just jumped the last digits up one number. So the part for then 650 should be the same..just with a 1 lower number than the 850 has.
 
ddelpriore said:
Help! After taking a drive on the highway, I noticed my 1981 Suzuki gs850g back tire was covered with gear oil. It actually looked red ....
Click to expand...

I think should explore the "red" aspect of this. If it was red, and was ATF... maybe that is why it leaked.

.
 
tkent02 said:
Don't think I've ever seen red gear oil... wait is Redline gear oil red? Might be.
Click to expand...


Here is what Redline looks like.

attachment.php
 

Attachments

  • maxresdefault.jpg
    maxresdefault.jpg
    105.1 KB · Views: 0
Last edited:
chuck hahn said:
As I understand part number lore, when they used the same part on a next year or different model bike, they just jumped the last digits up one number. So the part for then 650 should be the same..just with a 1 lower number than the 850 has.
Click to expand...

I don't think this is true. If you plug a part number that you know crosses multiple models and years (for example, the tach drive sleeve), any decent parts website will list many years for that same part number.

The 650's pumpkin drive unit is smaller and of a different design, I would be surprised if any of the parts were the same inside.

tkent02 said:
Don't think I've ever seen red gear oil... wait is Redline gear oil red? Might be.
Click to expand...

The SAE 90 hypoid gear oil I put into my 850 from the auto parts store is red.
 
I replaced the oil seal. I"m starting to think the original seal was, possibly, fine. I noticed when I assembled the final drive case cover and main bearing assembly the oil seal sat further down the outer splines. Looking at it the two inner oil seal ridges now grip the metal. Maybe the final drive case cover and bearing assembly loosened over time, allowing once ridge of the oil seal to sit over the spline allowing a gap. I guess the test ride will tell soon enough.
 
I hammered the main large spline further into the outer case cover, thereby moving the two lips of the main seal onto the shaft(Instead of being around the spline). No leak. I bet my oil seal was always fine. I think it somehow moved off the shift and onto the spline.
 
You must log in or register to reply here.
Back
Top