Re: [emrat:2435] My Tranny adventure

Fascinating and sceery, too. Don't know you but glad you're a-ok! Thanks for the mechanical specifics, too.

On May 30, 2013, at 2:22 PM, Curtis Graves <ikonoklass@gmail.com> wrote:

1. Thank God you're ok;
2. Good on Triumph for doing the right thing.

On May 30, 2013 2:20 PM, "Norman Wright" <lowrtax@gmail.com> wrote:

Some of you are aware of my adventure with my 2012 T100. I'll repeat for those not in the know (mostly those not  to Salida).

 I bought it from a private party in Pensacola, a retired AF Master Sargent.  It had 1200 miles and was beautiful.  I had it serviced by the Pensacola Triumph-Ducati dealer before I took off to see the Barber Motorsports Museum in Birmingham. (That's a whole other and better story.)

The next day I had gone about 400 miles when the tranny seized and the rear wheel locked.  I rented a truck and trailer and took the bike to Columbia, SC to a Triumph dealer there.

They finally tore into it yesterday and below is a reprint of what I just posted in the RAT Forum.  From the forum responses, it appears 2 others, one in US one in UK have had a similar issue although those were not as serious as mine.  BTW. those were on Thruxtons but I expect the tranny is the same on the Bonneville.

________________________________

I am the one with the 2012 T100 trany that burped but good.  I just got off the phone with the dealer doing the work.  In  these tranys, there are 2 parallel shafts with gears on each shaft.  As you shift, the drive gear meshes with the engine shaft gear to move thru the gears.  The individual gears have a stub that slides into a groove on the shaft so they are stationary on the shaft.  That  series of gears on each shaft is held in place by a wedge pin at the end.  Either that pin was never installed at the factory, was undersized and worked loose or wasn't tight enough for what ever reason and came out.  The pin came out (or was never there) and then the gears on the shaft migrated and finally the end one came off and gummed up the whole tranny and it seized.  He said there was a lot of metal in the tranny oil and even the oil recirc pump was damaged so they can't be sure if the pin just ground up after coming out or was never there in the first place.

The folks at Triumph have authorized a warranty replacement for the tranny and told my dealer they had never heard of that before. 

Don't know if similar problems are causing the rest of you an issue.  I was getting some loud "clunks" as I shifted about the last 200-300 miles before it all just bound up, I skidded and went down when the rear wheel locked.  Fortunately I was going slow and nothing was hurt on the bike except a scratch on one saddle bag and a scrape on the clutch lever.  That is being replaced as part of this too.

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