Came back from a run and found the Speedo gearbox had moved forward, despite resetting this has continued to happen.
I've double checked every part has been fitted exactly as the attached drawing, I have small amount of up and down and sideways movement on the rear wheel bearing.
If I tighten the rear wheel spindle nut really tight, the wheel tightens up.
Checked the Speedo gearbox lugs are engaged.
Appreciate some help if possible
Speedo gearbox
-
- Member
- Posts: 1102
- Joined: Tue Jan 15, 2008 4:18 pm
- Location: SOMERSET UK
Speedo gearbox
You do not have the required permissions to view the files attached to this post.
Mike
-
- Member
- Posts: 3369
- Joined: Wed Oct 12, 2005 10:45 pm
- Location: N YORKS UK
Re: Speedo gearbox
Alan Jacobs (Biscuit) prepared this and it's right. http://www.jampot.com/pic_display.asp?id=820 .
If what you've done is different, it's wrong.
If you've done it as per Biscuit's illustration and it doesn't work I don't have an answer.
Johnny B
If what you've done is different, it's wrong.
If you've done it as per Biscuit's illustration and it doesn't work I don't have an answer.
Johnny B
-
- Member
- Posts: 1102
- Joined: Tue Jan 15, 2008 4:18 pm
- Location: SOMERSET UK
Re: Speedo gearbox
Thanks Johnny,
I have ordered new wheel bearings and will methodically go through every drawing I have including the late great AlansðŸ‘
Is there a repair for the thread on the Speedo gearbox, or are these available anywhere, for the 1957 G3
I have ordered new wheel bearings and will methodically go through every drawing I have including the late great AlansðŸ‘
Is there a repair for the thread on the Speedo gearbox, or are these available anywhere, for the 1957 G3
You do not have the required permissions to view the files attached to this post.
Mike
-
- Member
- Posts: 16
- Joined: Mon Jun 24, 2019 2:05 pm
- Location: South Yorkshire UK
Re: Speedo gearbox
I had this happen, but the bearing adjusting ring that locates in the dogs of the speedo came undone , unscrewed seizing the back wheel, there is modification if you have access to a lathe. A modified adjusting ring 021583 is recommended if the ring is not truly concentric with the speedo drive.