End float spacer for main gearbox shaft C15

[Barnsey]

I'm trying to figure out how to attach a photo, I am sure I have done it before. So annoying!

 Anyway, in the meantime, yes, it is possible that the chain was loose leading to the scrapes, but, as I have removed the tensioner I can never be sure. 

[Barnsey]

I figured it out.   You can't attach files to a Quick Reply.  Only a slow Reply.  Here is the snap.

[DAVE BRADY]

Hi,

From what I can see the seal is knackered hence you have ordered a new one.  The mark could have been caused by a very slack chain jumping off the sprocket.  Once the spacer is fitted on the crank, up against the bearing, the sprocket cannot move in towards the case. 

Dave.

[Barnsey]

Thanks Dave, I'll do that,  Ian

[scifi]

I think there are several different widths of chain, with 1/16 inch between them.   Check that you can't move the chain sideways on the rear sprocket.

List of sizes....   https://www.ebay.co.uk/itm/13530