BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Photo posting tutorial

Member Spotlight
BSACafe
BSACafe
Saint John, New Brunswick
Posts: 307
Joined: February 2006
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
184 registered members (68 royalstar tony), 1,783 guests, and 522 spiders.
Key: Admin, Global Mod, Mod
Newest Members
John Riggs, Cofie, StanK, Neil Gerrard, Denise
9896 Registered Users
Top Posters(30 Days)
Lannis 81
Stuart 70
reverb 61
C.B.S 59
Popular Topics(Views)
413,465 mail-order LSR
Forum Statistics
Forums33
Topics64,914
Posts628,249
Members9,896
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate This Thread
#704003 - 08/05/17 12:35 am Transmission High Gear Bushing  
Joined: Aug 2001
Posts: 113
Phil R Offline
BritBike Forum member
Phil R  Offline
BritBike Forum member

Joined: Aug 2001
Posts: 113
SoCal
While inspecting the high gear assembly on a 1970 TBolt I noticed that the bushing appeared cracked on the outer portion.
I pulled out another from a parts box & found it to be cracked as well.
After researching the problem I discovered that this bushing is of the split variety and that replacements are actually available, if needed.
But a new question arose when I discovered that the two bushings differed greatly in the distance that they extended from the end of the assembly (see photo).
Is there a prescribed amount for this distance or is it set up for each individual transmission? Any insights appreciated.

Phil

[Linked Image]

Attached Files IMG_1232.JPG
Support Your #1 BritBike Forum!
Membership Type! Free
Member
Premium
Member
Premium Life
Member
Vendor
Member
Site
Sponsor
Recognition No Premium Member Premium Life member (5 years) Vendor Member Site Sponsor Membership
Post commercial threads No No No Yes Yes
Custom title No Yes Yes Yes Yes
Upload avatar & photos No Yes Yes Yes Yes
Link avatar & photos Yes Yes Yes Yes Yes
Private Message Storage: 10 100 100 100 100
Length of signatures 255 600 600 600 600
Removes this very advert island between post 1&2 No Yes Yes Yes Yes
Price Free $12.90/year $105.00 No End
$55.00/5 years
$210.00/year
($17.50/month)
Email
Click on button >>
  Premium Member Premium Life member Vendor Member Site Sponsor Membership
#704004 - 08/05/17 12:39 am Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: Aug 2001
Posts: 113
Phil R Offline
BritBike Forum member
Phil R  Offline
BritBike Forum member

Joined: Aug 2001
Posts: 113
SoCal
Sorry, looks like there are still some things I don't understand about "Attachment Manager" !

#704023 - 08/05/17 8:13 am Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: Sep 2008
Posts: 719
jaycee Online content
BritBike Forum member
jaycee  Online Content
BritBike Forum member

Joined: Sep 2008
Posts: 719
angeles city, rp
if it helps any the one on the right looks correct. its possible the one on the left could have broken off as a groove gets worn there from the seal thats in the plate behind the clutch basket. i replaced a set of bushes in a '65 tears ago but ill be damned if i can remember what the spacing was. I WANT TO SAY (but not sure) that those bushes, and there two, press in til they but up to each other and the result is the correct protrusion. i DO remember they required a light reaming afterwords.

#704030 - 08/05/17 10:21 am Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: Aug 2001
Posts: 3,272
gavin eisler Online content
BritBike Forum member
gavin eisler  Online Content
BritBike Forum member

Joined: Aug 2001
Posts: 3,272
argyll. scotland, uk
The bush needs to extend enough so that the oil seal in the primary case has something to run on, not critical , just long enough and a wee bit more.
When I replaced these bushes I had to ream them to get a running fit, used an expanding reamer.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
#704090 - 08/06/17 3:14 am Re: Transmission High Gear Bushing [Re: gavin eisler]  
Joined: Aug 2001
Posts: 113
Phil R Offline
BritBike Forum member
Phil R  Offline
BritBike Forum member

Joined: Aug 2001
Posts: 113
SoCal
Jaycee, Gavin, Thanks for the input, that's just the information I was hoping to find.
Much appreciated!

Phil

#704096 - 08/06/17 7:34 am Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: May 2013
Posts: 4,533
Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
Interesting, out of the 3 boxes I have the high gear bushes do not touch in the centre. Unless it's seriously worn I wouldn't bother.


beerchug
#704134 - 08/06/17 4:10 pm Re: Transmission High Gear Bushing [Re: Allan Gill]  
Joined: Aug 2001
Posts: 113
Phil R Offline
BritBike Forum member
Phil R  Offline
BritBike Forum member

Joined: Aug 2001
Posts: 113
SoCal

[quote= Unless it's seriously worn I wouldn't bother. [/quote]

I think we're both on the same page Allan.

Thanks

Phil

#704162 - 08/06/17 10:14 pm Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: May 2013
Posts: 4,533
Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
bigt if the gap is big enough to leak a highly viscous gearbox oil then it is goosed


beerchug
#704229 - 08/07/17 4:16 pm Re: Transmission High Gear Bushing [Re: Phil R]  
Joined: Jan 2004
Posts: 3,472
DMadigan Offline
BritBike Forum member
DMadigan  Offline
BritBike Forum member

Joined: Jan 2004
Posts: 3,472
ca, us
The high gear bush sticks out about 0.350" from the gear and no, the two do not meet in the centre.

#704396 - 08/09/17 5:59 am Re: Transmission High Gear Bushing [Re: DMadigan]  
Joined: Aug 2001
Posts: 113
Phil R Offline
BritBike Forum member
Phil R  Offline
BritBike Forum member

Joined: Aug 2001
Posts: 113
SoCal
Roger that info Dave, thanks much.
Neither of the two I have meet up in the center. If need be, I plan to adjust the gap just slightly so that the seal will run on an un-worn surface of the bush.

Phil


Moderated by  Allan Gill, Mike Carter 


Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.096s Queries: 16 (0.006s) Memory: 0.8590 MB (Peak: 1.0648 MB) Zlib disabled. Server Time: 2017-10-20 14:14:43 UTC