» Sponsors
Motorcycle.com

» Sponsors

Modifications & Workshop Talk Maintenance, Troubleshooting or Creating Fabulous Custom Machines...

Please Visit our Site Sponsors

Reply
 
LinkBack Thread Tools Display Modes
Old 12-11-2007   #1 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Angry Possible major flaw in Triumph twins - Starter shaft race castings broken!

2005 Speedmaster - 7000 miles

went to start it a few days ago and after two turns of the crank... a loud clunk and then.....





The starter shaft races had both broken and the starter gear was wedged against the engine case:



more pics in next post
EDG1911 is offline   Reply With Quote
Sponsored Links
Advertisement
 

Old 12-11-2007   #2 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Angry

I believe this is the same problem Lorenzo describes in this thread:

http://www.triumphrat.net/modificati...ar-wedged.html

anyone else have, or know others with, this problem?

A few more pics:





EDG1911 is offline   Reply With Quote
Old 12-11-2007   #3 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Thumbs up I'm relieved

Good News!!!!


Just talked with a nice gent named Shell at Triumph in Georgia and he said they will fix it despite it being out of warranty!!!





Called the dealer's service dept and will be bringing it to them Fri.



Apparently Triumph have "beefed up that area" now.

I'll post more info once I get it to the service dept.
EDG1911 is offline   Reply With Quote
Old 12-11-2007   #4 (permalink)
Lifetime Premium
Site Supporter
250 Grand Prix
Favorite Bike: 1993 Trident
 
Join Date: Jul 2007
Location: England
Posts: 144
Other Motorcycle: Super III
Extra Motorcycle: BSA heap of Spares
I talked with the friendly local triumph dealer spannerman here and Triumph know about this - it is apparently relatively uncommon and they are fixing those who ask nicely it would seem....having now cured it - I think they should come clean on stuff like this - it is a bit reminiscent of the old starter sprag problems 15 years ago on triples...
Ben Rawlinson is offline   Reply With Quote
Old 12-11-2007   #5 (permalink)
Super Moderator
Site Supporter
Team Owner
 
Diego's Avatar
 
Join Date: Aug 2003
Location: Georgia again for a while.
Posts: 3,209
If it is "apparently uncommon" then what is there to "come clean" on? You can't mount a recall every time a vendor has a hiccup, and the numbers don't indicate a "possible major flaw" either. As long as they make right the ones that do fail, even after warranty, they're doing a pretty good job.

EDG, probably a better place to ask your question would have been in the Twins tech forum, which receives a lot more visits on a daily basis, mostly from actual twins owners.
__________________
John
Diego is online now   Reply With Quote
Old 12-11-2007   #6 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Wink

Hey Diego,

I only posted it here because there was another thread with the same problem and also I thought maybe someone with a similar problem may have had a machine shop machine a steel insert or had a welder reattach the pieces and reinforce the area so workshop talk seemed very appropriate to me.

It's obviously a possible major design flaw if Triumph has redesigned it to make that area less prone to the forces that broke mine and any others. I will always think of it every time I start my bike from now on.

I think Triumph is just hoping it doesn't become an epidemic. when searching threads here for info before making this thread I saw another where a person was installing a chrome clutch cover and had not gotten the starter shaft in place correctly and may almost have had the same thing happen and even had to file some burrs off the race to get the shaft back in place...
so maybe the tolerances are off or some such on some older castings.

either way when a $10 shaft breaks a $3500 engine case it doesn't seem right.

Eugene

Last edited by EDG1911 : 12-11-2007 at 05:32 PM. Reason: typos
EDG1911 is offline   Reply With Quote
Old 12-11-2007   #7 (permalink)
Super Moderator
Site Supporter
Team Owner
 
Diego's Avatar
 
Join Date: Aug 2003
Location: Georgia again for a while.
Posts: 3,209
> It's obviously a possible major design flaw if Triumph has redesigned it to make that area less prone to the forces that broke mine and any others.

Nothing obvious about it at all. That's called being proactive... identify a situation that resulted in a weakness on a small number of previously produced machines, and implement a change in future production that stands to eliminate the chance of it happening again.

If they hadn't taken that extra step, it would've reduced awareness of the problem to the extent you might not have any ammunition for worries at all. They could have turned a blind eye to the whole thing and said, "sorry, stuff happens, it's out of warranty so it's not our concern." If they had taken it to their lawyers, that's exactly what they would have been advised...it's rare, so just lie low and do nothing. But that would not have been the responsible thing to do. Because they did the right thing and improved the product, now it's an admission of "a major design flaw"?

A sense of perspective is a useful thing. If this were indeed a widespread problem, you'd see more than one previous thread about it here. Believe me, the subject would have been done to death endlessly in the Twins forums!

And before you ask, yes, I do have a horse in this race. My beloved Bonneville has just completed its sixth season, and I am no more worried about encountering a problem this obscure than I was when I bought it.
__________________
John
Diego is online now   Reply With Quote
Old 12-11-2007   #8 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Wink

Don't forget to put "possible" in front of design flaw...nothings set in stone here but if they redesigned it it most possibly was flawed.

I understand your point but I think of the situation differently.

EDG1911 is offline   Reply With Quote
Old 12-12-2007   #9 (permalink)
Senior Member
SuperSport
 
bonnieblackinfl's Avatar
 
Join Date: Jan 2006
Location: Jacksonville, FL
Posts: 1,252
Did you recover the pin and wavy washer too? There is a pin that the starter gear (not bendix) is mounted on and a wavy washer that goes in between the gear and the cover. Are they replacing the cases?

Greg
bonnieblackinfl is offline   Reply With Quote
Old 12-12-2007   #10 (permalink)
Member
Super Sidecars
 
Join Date: Jul 2007
Posts: 79
Post

Quote:
Originally Posted by bonnieblackinfl View Post
Did you recover the pin and wavy washer too? There is a pin that the starter gear (not bendix) is mounted on and a wavy washer that goes in between the gear and the cover. Are they replacing the cases?

Greg
They are replacing the cases. I'll know more specifices after I get it to the dealer.

I have the wavy washer but I don't think I have the pin. I'll have to double check, hopefully it's not inside the engine case somewhere and if it is I hope they find it when they take it apart.

I had a limited amount of time to dissasemble and then reassemble and try to push start it...no luck there...wish it had a kick starter!


Eugene
EDG1911 is offline   Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Broken shifter shaft ClassiclyMobile Hinckley Classic Triples 35 06-21-2007 08:17 PM
Broken gearchange shaft on 96 Adventurer cieless Hinckley Classic Triples 6 06-03-2007 12:38 PM
Re. broken shift shaft on Legend Trumpnut Hinckley Classic Triples 18 05-18-2007 03:22 PM
Help!! Starter motor broken 4 times in 16 months Integralle Hinckley Classic Triples 3 02-11-2006 07:10 PM
Will Triumph become a major brand? Ronnie Sprint Forum 35 10-03-2005 05:55 AM


Motorcycle News, Videos and Reviews
Harley Davidson Suzuki GSXR Honda 600RR Yamaha R6
Sportbike Forums GSXR Forum Honda 1000RR Yamaha R1
Sportbikes Forum Ducati Forum Kawasaki ZX R6 Forum
Motorcycle Forum Ducati Monster Kawasaki Forum R1 MessageNet

Powered by vBulletin® Version 3.6.10
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.1.0