Second attempt at oil leak, a little advice please.

[BrettS]

Eddy sent some pics by email. Some how it looked different
It also had two o rings, this Shyte makes you feel dumb some times

[Jonesy]

sounds like you had a good go at it any way Brett, looks like its had some moisture in there at some stage too.
Eddy still might be able to suss out if theres a way of doing it while still on the bike

[BrettS]

That don't seem to work. Took the nut off and the bearing was still not keen to come out. tried to take the cup/spacer out. It will swivel but can't get it to move out any. The manual uses a hammer on the pinion shaft from behind to remove these. I might leave it leaking for now until the full strip down.
I noticed that there was three shims #8 and two shims #6. It seemed that the tension on the nut was quite low. When I went to re-tighten the nut to 80 foot pound I could not get it and found that the shaft seemed to spin. (not the back wheel as that was being held) It was tighter than it was when i took it off so I left it at that. Makes me wonder if it has been mucked with before and maybe the less pressure is why it leaks from that #6 shim ??
Took it for a ride and all seems well.

Time for a rest before night shift chat later 

[BrettS]

Looking behind the cap cover we see this.


It looks like we need to knock the lip of the nut out of the key way and then undo the nut. The manual takes this out as a complete unit and then undo the nut out of the middle gear housing. It also puts it back on out of the housing.
My only fear doing it this way (without full dismantle) is that it puts undue strain on the gears that the shaft connects to. have no idea if this is a problem and I believe it is only 80 pounds of toque so that does not seem like alot to cause any damage.
Heading down to buy a socket to fit and or a new shifter as mine did not find it's way back into my bag the other day at work.

If no one sends any alarms my way before i get back i will undo that Nut and see what happens 

[BrettS]

So you are thinking that nut comes off then the bearings shim cup all comes off. I will have a look tomorrow.
Thanks

[Jonesy]

Brett if thats a shim and not a circlip that makes it even easier. I still reckon you can do without removing unit from the bike......but I'm only going off drawing not the real thing

[BrettS]

Thanks errol I will check in the morning, Fingers crossed 

[Eveready1100]

Brett, before doing too much open heart surgery, check to see if a wasp or hornet hasn't built a nest in the breather hose, which will make the housing pressurise and leak as the oil expands when it heats up if it can't vent. Check by removing the filler plug, then stick an air line in it (or just blow through a piece of tubing if you don't have a compressor yet). You should hear air escaping from the breather hose.
If it's clear, forget I said anything.

[BrettS]

Thanks Jonesy I will give that a try. I found a manual that is especially for the drive assembly.
http://www.ringler.us/xs1100/ShaftDriveManual.pdf

My best understanding is that I would have to remove circlip number 14 in thier explosion (chapter 6) or number 13 in the one above Jeff suplied. Hopefully I have misread or misinterpeted this and you are right. I will give it a go.

Hmm hang on I just explained it to Danica and I see that what you thought was a (Edit) circlip is actually a thrust shim so it looks like I do need to do a full dismantle.
Bugger I might get the silastic out for now until the full rebuild ??

[Jonesy]

Hey Brett
reckon you'll have to undo nut #9 and what appears to be circlip #8
then depending on how tight the fit is for bearing #7  on the shaft i& bearing housing retainer #5 inside main casing #2  you should be able to withdraw 5, 6  & 7 together.
keep everything in order as you remove it and should be a piece of piss to go back together.

Or
Talk to Eddy he has a dead one on the deck and could give you some instructions

EDIT
oh yeah, the above refers to it still being on the bike

[BrettS]

Could be Jeff, I will have another look at the manual looking for that explosion, does it show gaskets??
I am guessing 5 is what I have been calling the spacer 6 is the gasket and 3 is the shim. If so I would guess it is either the o ring or the shim that is leaking??

How much do i need to pull apart to get to them??

[excess.11]

Brett , Item number 4 is an O-Ring........could this be your problem?

[BrettS]

I just went to take a picture of the spacer and it becomes a little clearer. I now see that shim behind the spacer. If I can just get some advice on what this spacer and shim does and how it comes off I would just order a part such as you suggest Eddy and then I can degrease the driveway again 

[BrettS]

Thanks Eddy, but now I have more questions 
So do we call this the cap housing? What is that shim for? Won't I need two gaskets, one to go behind the spacer and I still don't know if I can take that spacer off.
It seems to me since my first repair did not work then it is leaking from behind the spacer.

[XSIIE]

Hey Bretts

http://www.ebay.com.au/itm/YAMAHA-XS2-D-XS750-XS850-XS1100-XJ1100-CAP-HOUSING-GASKET-OEM-1J7-17519-Y0-00-/160912383090?pt=Motorcycles_Parts_Accessories&hash=item2577201c72

http://www.nwvcp.com/pages/OemParts#/Yamaha/XS1100H_-_1981/MIDDLE_DRIVE_GEAR/XS1100H_(1981_MOTORCYCLE)/MIDDLE_DRIVE_GEAR_(XS1100H_-_1981)

Eddy