Gear selector and brake pedal pivot check

[Peds8045]

Thanks to the information on here i decided to strip and check my gear selector and rear brake pedal pivot bolts. It only took about one hour to remove and refit both and I'm glad i did as the brake pivot thread was bent and both were lacking in grease or dissimilar materials paste. Anyway I've ordered two new ones which I'll fit once they arrive.

I have to say that, as an engineer, I'm surprised that dissimilar materials paste is not applied as the oxidisation between steel bolt and aluminium lever is guaranteed to occur especially when exposed to water and any salt from the roads.

I would recommend a check of the two items if you have some spare time.

[baz1]

I did mine last week. Same findings, lack of grease & bent brake pedal pivot.

[CAM]

You are both very fortunate that you were successful in removing that brake pivot bolt. Last year I easily removed the gear change lever bolt for inspection and lube but the brake side was a different story. I quite cautiously put pressure on the wrench and thought that the bolt was moving but it suddenly snapped. The bolt still had about 3/16 inch thread attached but had sheared flush with the frame. Needless to say I had a heck of a time removing the piece from the frame - I actually broke an easy out in the stub and then had an even more difficult job on hand. Finally removed the piece and installed a new bolt but would advise caution to anyone tackling this job. On my bike, the brake pivot bolt was obviously not completely screwed home during factory assembly and it would appear from the two previous posts about bent bolts that this may be more common than one would expect.

[Novocastrian]

Here's the bolt:  the one on the left is the new one supplied by a Triumph dealer.  The one on the right is the one I removed.  I used a wire wheel to remove that blue locking compound and applied grease instead.  My take is I would rather the bolt worked loose than snapped off I'm half way round Europe.

[CAM]

I also removed the blue compound from the new bolts and applied just a dab of blue Locktight instead. They should be easy to remove for future service.

[earthman]

When I bought a replacement bolt for mine the other year, it came with a 'grease groove' machined into it, can't remember if these were an 'upgrade/improvement' of the original bolt or a different part number period. Not sure how effective it is though to be honest, I still have to remove/re grease every now and then.





16/01/20 - Edited to remove "Redundant Quoting"
( Forum Rule 2.24 )
Trophy Moderator

[Canes1]

Agree with the dissimilar metals not being a wise decision!
After reading some of the post's here concerning the pivot bolts breaking, I ordered a few extras when I ordered the pannier covers (just in case).
Will still perform inspections of existing bolts.

[Coconut]

When I bought a replacement bolt for mine the other year,
it came with a 'grease groove' machined into it ....

As has been mentioned in other Forum Topics the version with the "Grease Groove" in it,
has never beeen listed for the Trophy, but it does fit !

It may have been used when stock of the "correct" part was low.

An examination of the bore of the Brake and Gear Change pedals reveals there is some sort
of "bushing" in there - possiby Phosphor Bronze, but that's just a guess,
as is my guess that it's purpose is to reduce / eliminate the corrosion problems
usually associated with dissimilar metals.

( Photo courtesy of Member Etitanic ).


In the above Photo a small threaded hole can be seen inside the bore.
This is where a previous Owner had made a modification
by installing a Grease Nipple to the Pedal, which would probably work well
alongside the Pivot Bolt version having that Grease Groove.