Thruxton Thruxton R Gear Linkage Bolt Failure

https://www.thetriumphforum.com/thr...ew-like-blood-from-a-stone.36037/#post-600965

Having fought with the dealer about the above link.

I finally got to take my recently repaired Thruxton R out to try and bed it in.
A little 43 miles later my gear lever linkage has suddenly failed.
I thought there was a recall for something similar to this unless I’m losing my mind.

The actual bolt has snapped god knows how.
I will investigate next week

Was it caused by the recent repair or service?
Was it caused by overtightening as part of a recall?
Was it caused in transit?
Had it slowly worked loose and snapped?

I need to understand what the recall and repair entailed

I am lucky to not have come off today.

 

Right

Done some research this morning firstly tracking down which parts I need. When I looked at the image as attached the bolt, which has snapped doesn’t feature.
Following a call with my local dealer they advise bolt comes pre fabricated onto the gear lever.

I will dismantle it at some point today to see if there are any obvious marks, If I’m honest I’d much prefer to find something pointing to an impact as I’m losing the will to live at the moment.

 

Thanks for posting. Was it the actual bolt breaking? In your opinion what caused it?

 

Cheers. You have to buy the entire assembly from triumph.
I still have part of the bolt within the gear lever also.
I’m trying to see if there was a recall relating to the gear linkage. Seem to remember something as part of my research pre purchase but to the life of me I can’t find it now.

 

Here is a pic showing the original spacing between the balljoint and lever before it broke. Would someone mind looking at their bike to see if theirs has a similar spacing please.

Since removing the lever I have also noticed the inside of the lever is damaged. You couldn’t see this from the outside of the bike. I can’t say when that has happened certainly nothing I have done since owning the bike. You would have thought any stress would have been applied to the main bolt holding the lever on opposed to the linkage.

 

I’m really keen for someone to share an image of their gear lever where the end of the ball joint meets it in the first image
See these 2 images the front connection is flush where as there was a significant gap at the lever

 

I wasn’t trying to jump to conclusions but your image sums up what I am currently thinking that both joints would look the same. looking at the thread inside the lever there is no lock tight residue or marking.
When I pickup the new part I will immediately know whether I am barking up the wrong tree or not. I also plan to examine bikes in the show room

 

Did yours have the gap like mine?

 

https://www.thetriumphforum.com/threads/speed-twin-broken-shift-linkage.23989/


Just seen a similar thread

 

https://www.triumphrat.net/threads/sheared-shift-linkage-bolt-thruxton-r.863594/

And another

Regardless of how far the bolt should or should not have been set, I’m not alone.

 

And another, a lot of people on this one though relating to the bolt coming loose rather than breaking

https://www.thetriumphforum.com/threads/warning-gear-shift-linkage.34439/

 

There is a whole host of lock tight at the end where it snapped off. At the opposite end where you can also see the thread inside the lever there is no sign suggesting that the bolt has moved at all. I recon it has been in that position for a good while and as you quite rightly say it wouldn’t have been as strong and hence it breaking.
begs the question of how it has been missed during service couple of weeks ago Its only through my own research I now know what to look out for but I’d expect a mechanic to spot it a mile off.

 

Many thanks I’m going to do a similar thing and mark it up once it is fixed.
I’ve just gone through some photos and can clearly see that the bolt has moved since February.
Would it ever be removed during a service to clean and re grease the ball joints?