R90/6 Oil Leak Help

Discuss all things 1970 & later Airheads right here.
Patdabin
Posts: 27
Joined: Sat Mar 19, 2016 10:50 pm

R90/6 Oil Leak Help

Post by Patdabin »

So I have found an oil leak and took some pics. I wanted to know if anybody has experienced the oil on the bottom of the oil pan and around it and if so from looking at these pictures if you could try to help me diagnose what gaskets I could possibly need to stop the oil leak.[img][IMG]http://i150.photobucket.com/albums/s82/ ... 182156.jpg[/img][/img]
[img][IMG]http://i150.photobucket.com/albums/s82/ ... 182308.jpg[/img][/img]
[img][IMG]http://i150.photobucket.com/albums/s82/ ... 182324.jpg[/img][/img]
[img][IMG]http://i150.photobucket.com/albums/s82/ ... 182541.jpg[/img][/img]
[img][IMG]http://i150.photobucket.com/albums/s82/ ... 182526.jpg[/img][/img]
User avatar
Airbear
Posts: 2886
Joined: Tue Aug 03, 2010 10:02 am
Location: Oz, lower right hand side, in a bit, just over the lumpy part.

Re: R90/6 Oil Leak Help

Post by Airbear »

Could be a couple of leaks there, all in the usual places. I would give it a good wash - firstly with a brush and solvent, then detergent and pressure wash. Then when you go for a ride you will see exactly where the fresh oil is coming from.

Looking at the third picture it appears that there is oil on the 'shelf' under the gearbox. This can be from the engine rear main seal and/or the gearbox input shaft seal. Very common thing and requires gearbox removal to fix. Don't worry, it is all fixable and will add greatly to your Airhead knowledge base. Do the wash first so you know what it needs.
Charlie
and Brunhilde - 1974 R90/6
Image

Graduate, Wallace and Gromit School of Engineering and Design (Pending)
User avatar
SteveD
Posts: 4909
Joined: Tue Aug 03, 2010 3:29 am
Location: Melbourne, Oz.

Re: R90/6 Oil Leak Help

Post by SteveD »

If you can, go back into photobucket and resize to 600 wide....Image
Image
Image
Image
Image
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
Patdabin
Posts: 27
Joined: Sat Mar 19, 2016 10:50 pm

Re: R90/6 Oil Leak Help

Post by Patdabin »

How did you post the pics to see them? What did I do wrong
Patdabin
Posts: 27
Joined: Sat Mar 19, 2016 10:50 pm

Re: R90/6 Oil Leak Help

Post by Patdabin »

Airbear wrote:Could be a couple of leaks there, all in the usual places. I would give it a good wash - firstly with a brush and solvent, then detergent and pressure wash. Then when you go for a ride you will see exactly where the fresh oil is coming from.

Looking at the third picture it appears that there is oil on the 'shelf' under the gearbox. This can be from the engine rear main seal and/or the gearbox input shaft seal. Very common thing and requires gearbox removal to fix. Don't worry, it is all fixable and will add greatly to your Airhead knowledge base. Do the wash first so you know what it needs.
The bike is not in driving forme as I have taken it apart. I'll just replace the seals and see if that works.
Rob
Posts: 3088
Joined: Thu Feb 13, 2014 2:05 am

Re: R90/6 Oil Leak Help

Post by Rob »

Patdabin wrote:How did you post the pics to see them? What did I do wrong
It looks like you somehow doubled up on the prefix [img] code.
Rob V
Duane Ausherman
Posts: 6008
Joined: Thu Aug 12, 2010 12:39 pm
Location: Galt California
Contact:

Re: R90/6 Oil Leak Help

Post by Duane Ausherman »

You can easily tell if the oil is from the input seal of the transmission, or the rear main seal of the engine. They smell totally different. It could be both.

Removing the transmission will show the oil washing down the front of the case, or not. There are other very small possibilities too. Does the clutch slip?
Ask the Indians what happens when you don't control immigration.
User avatar
SteveD
Posts: 4909
Joined: Tue Aug 03, 2010 3:29 am
Location: Melbourne, Oz.

Re: R90/6 Oil Leak Help

Post by SteveD »

Rob wrote:
Patdabin wrote:How did you post the pics to see them? What did I do wrong
It looks like you somehow doubled up on the prefix [img] code.
Yep. If you dump the photobucket url into your text, you don't need to click on the img box on your text page.
You can resize via pb easy enough. 600 wide is usually plenty.
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
Patdabin
Posts: 27
Joined: Sat Mar 19, 2016 10:50 pm

Re: R90/6 Oil Leak Help

Post by Patdabin »

SteveD wrote:
Rob wrote:
Patdabin wrote:How did you post the pics to see them? What did I do wrong
It looks like you somehow doubled up on the prefix [img] code.
Yep. If you dump the photobucket url into your text, you don't need to click on the img box on your text page.
You can resize via pb easy enough. 600 wide is usually plenty.
Thank you
Patdabin
Posts: 27
Joined: Sat Mar 19, 2016 10:50 pm

Re: R90/6 Oil Leak Help

Post by Patdabin »

Duane Ausherman wrote:You can easily tell if the oil is from the input seal of the transmission, or the rear main seal of the engine. They smell totally different. It could be both.

Removing the transmission will show the oil washing down the front of the case, or not. There are other very small possibilities too. Does the clutch slip?
No not that I know of. I will need to separate the two and see. I am debating installing not clutch plate while open.
What are some other things I should be doing to the bike while I'm at it. Maintenence or just time repairs. Timing chain?
Post Reply