leaky seal


9 replies to this topic
  • saucebox

Posted April 21, 2005 - 03:40 PM

#1

i posted this in the general forum also but anyways here is my dilema. the output shaft on my bike has been leaking oil ever since i bought the bike but i never got around to figuring out where the oil leak was coming from until today (thought maybe it was the shifter, output shaft, or that oil line.) anyways today i determined it was the output shaft and i was wondering if you can use the same trick for the fork seals with the film on this output shaft???

  • grayracer513

Posted April 21, 2005 - 03:53 PM

#2

Well, you could try it, but don't expect much. Usually, the seal needs to be changed.

It should have a sheet metal dust shield over it, just behind the front sprocket. I've seen these left off for whatever reason, but if it isn't there, you should buy another one.

The output, or countershaft, seal rides on a removable steel collar that slides onto the shaft. Check the collar for a groove worn into it by the seal. If it has a noticeable groove, like one that you can feel easily with you fingernail, you should change the collar, too. The groove will "trap" the lip of the new seal and keep it from sealing right.

If the collar needs replacement, there is a thin O-ring on the output shaft that keeps oil from leaking between the shaft and the collar. Dig it out of place with a small pick and replace it too. If the collar is OK, you can just leave it in place and not bother with the O-ring, unless it looks like it was leaking too.

  • saucebox

Posted April 21, 2005 - 04:34 PM

#3

well the dust gaurd was on.. had to take that off to figure out where the leak was coming from.. when i did the fork seal trick i just used some paper stickys and they worked just fine but i cant get them in there on the countershaft. i still have yet to try film

  • saucebox

Posted April 21, 2005 - 04:37 PM

#4

wouldnt surprise me at all if it is missing that washer.. i bought the bike brand new but had to replace the clutch side case half the second day i had the bke and when i got it back there was all kinds of nuts and bolts missing or just started in the threads... noticed the oil leak about a week later and my dealership said i was off warranty and they had my bike for over 3 weeks waiting on the case which was on backorder. so my thirty day warranty was more of 3 day warranty.

  • saucebox

Posted April 21, 2005 - 05:54 PM

#5

i got some replys in the general forum and some guys say i might be able to replace the seal w/out splitting the cases, is this so???

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 426Hurricane

Posted April 21, 2005 - 06:13 PM

#6

sauce,
dont mean to hijack your thread, but hit me up and let me know if your "buddy" is interested in a solid 426.

  • saucebox

Posted April 21, 2005 - 06:20 PM

#7

dont worry about it man, i was waiting for you to reply in your thread.. dunno how i missed it.. that close to fargo is a good deal... i'll most likely see him this weeked and see if he's still intereste.. i'll pm you with my email address so you can send me some pics

  • mj2412

Posted April 22, 2005 - 12:31 AM

#8

Hy,
it is no problem to change the seal. Pull everything down in front of the seal, pull the collar out and then use a screwdriver to annul the seal. Take care that you don´t destroy the case surface under the seal with the screwdriver. Buy a new seal and push it in. Clean and check the surface of the collar and replace it when it is worn out like grayracer described. When you change the collar don´t forget to change the o-ring also.

good luck, it´s really easy. :naughty:

Martin

  • Slowmotion426

Posted April 22, 2005 - 12:59 AM

#9

Good info guys...

  • grayracer513

Posted April 22, 2005 - 03:21 PM

#10

i got some replys in the general forum and some guys say i might be able to replace the seal w/out splitting the cases, is this so???

It's a 20 minute job. Follow mj's guide.





Related Content

Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017
Forums
Photo
Supercross

Wilson the Blue Privateer by jetfuel


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

BIGBORE FOR YZ450F 2006? by Taattie94


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.