Horizons Unlimited - The HUBB

Horizons Unlimited - The HUBB (https://www.horizonsunlimited.com/hubb/)
-   Yamaha Tech (https://www.horizonsunlimited.com/hubb/yamaha-tech/)
-   -   Thingy at the end of transmission mainshaft? (https://www.horizonsunlimited.com/hubb/yamaha-tech/thingy-at-end-transmission-mainshaft-60670)

luadraman 11 Dec 2011 00:23

Thingy at the end of transmission mainshaft?
 
Can anyone tell me which way the little thing goes into the transmission mainshaft? It's the little thing sticking into the end of the shaft, it's bowl shaped sorta - convex on one side concave on the other. Which side faces out? It's a 34L Tenere. thanks

http://dl.dropbox.com/u/28540097/Bik...e/IMAG0533.jpg
http://dl.dropbox.com/u/28540097/Bie...e/IMAG0533.jpg

luadraman 11 Dec 2011 00:24

Apologies for huge picture! Don't know yet how to make it smaller!
edit: fixed the pic!

Socks 11 Dec 2011 12:51

Have looked in the Clymer 1983 –1989 manual and the “thingy” is most definitely depicted as concave, that is as you have it in the photograph.


My question, did the “thingy” fall out easily or not? Was it loose and drop out? Is there a circlip holding it in place? There is no mention of this “thingy” in the manual that I have read as yet, so far other than in the photographs. So can it be assumed that the end of that shaft which holds the kick-start idle gear ends up in the outer casing?

Hope this helps
Socks

oothef 11 Dec 2011 13:20

Looks like a plug to ensure oil feed through the shaft

Socks 11 Dec 2011 13:53

Quote:

Originally Posted by oothef (Post 358996)
Looks like a plug to ensure oil feed through the shaft

I agree with you on this oothef.
I recall reading a rebuild thread somewhere, that in these shafts a build up of dense sludge was discovered, so I’m wondering if Luardaman removed this plug to clean out the shaft. There is a hole in the shaft around where the kick-start idel gear sits so I wonder if that hole is to aid the lubricating of that gear.

kentfallen 11 Dec 2011 17:44

Thingy?????:confused1: lol

You should be able to properly identify what this part is called (and it's part number) by downloading a parts manual on this sub-forum above (second sticky down).

Good luck.

luadraman 11 Dec 2011 18:16

Ha ha, thingy is a technical term ya know! I used parts sites that show the exploded views but they don't show the part in question, it's probably not supposed to come out at all. Anyway, when I got the casing off it was at 90 degrees to the way it's supposed to be (ie. not facing in or out) hadn't moved it myself but was pretty sure that wasn't how it fit! Thanks for the help. :thumbup:

Socks 11 Dec 2011 19:35

Quote:

Originally Posted by luadraman (Post 359031)
Ha ha, thingy is a technical term ya know! I used parts sites that show the exploded views but they don't show the part in question, it's probably not supposed to come out at all. Anyway, when I got the casing off it was at 90 degrees to the way it's supposed to be (ie. not facing in or out) hadn't moved it myself but was pretty sure that wasn't how it fit! Thanks for the help. :thumbup:

?
could this mean that the original "thingy" is pushing up against and beyond what it should on the inside of the thingy that is made of magnisum that is to say the thingy that the original thingy is pressed into is possibly not sitting in the :nono: correct alignment within the :nono: OK bearing thingy. How? dont know! Missing spacers/washers/circlips/wrong size bearings/has it been rebuilt before?

Whoops just couldent help it :innocent: honest guv

oldblokeonabike 12 Dec 2011 07:54

Thingy at the end of transmission mainshaft
 
Yes, Oohef is correct, it's a welch plug to stop oil running out the shaft & directing through the lubrication holes. Select a socket that slips inside the shaft. Remove plug, (your picture shows it going the correct way) & tap another socket into the plug while it's out of the shaft to swell its diameter slightly. Refit the plug using the selected socket (the one that slips inside the shaft) to tap plug in, keeping it to just below the bevel inside the shaft, approx 2mm. The shaft looks extremely worn & I'd be checking the bearing surfaces.

Cheers, Ron


All times are GMT +1. The time now is 09:14.


vB.Sponsors