Home
Search
Member Map
Photos Gallery
Login
Register
VIEW MEMBERS
ERROR LOG
MAINTAIN DATABASE
ATTACH & AVATARS
MANAGE THEMES
BLOCK LIST
Login/Register
RECENT POSTS
UNREAD TOPICS
UNREAD REPLIES
BOOK MARKS
PHOTOS GALLERY
HELP PAGES
ACCOUNT
SETTINGS
FORUM
PROFILE
MY POSTS
MESSAGES
NEW = 0
LOGOUT
Recent Posts
Please
login
or
register
LOGIN
JOIN
Triumph Trophy
»
Main Trophy Boards
»
Maintenance, Servicing, and Mechanical
»
Need help with a diagnosis for a front end noise when turning the bars
17 May 22, 21:45 pm
« previous
next »
1
2
3
...
5
Go Down
Author
Topic: Need help with a diagnosis for a front end noise when turning the bars (Read 10656 times)
0 Members and 1 Guest are viewing this topic.
flyingz06
Trophy Pro ‐
177
Topic Author
flyingz06
Trophy Pro
Topic Author
Posts: 177
Bike: Triumph Trophy
City / Town: Indiana
Need help with a diagnosis for a front end noise when turning the bars
on:
Jul 31, 2016, 10.55 pm
Jul 31, 2016, 10.55 pm
to the right.
So if Im in a parking lot and turn around to the right, it sounds like by disc is warped. The noise comes and goes as the tire is rotating with no front brake pressure. Its getting worse. No other notice of issues with brakes or anything.
Bike has 7500 miles with original brakes and tires.
I can not duplicate the sound if i have it on the stand and rotate the wheel and turn the bars.
Thoughts?
Last Edit: Jul 31, 2016, 10.57 pm by flyingz06
flyingz06
Trophy Pro ‐
177
Topic Author
#1
flyingz06
Trophy Pro
Topic Author
Posts: 177
Bike: Triumph Trophy
City / Town: Indiana
Re: Need help with a diagnosis for a front end noise when turning the
Reply #1 on:
Aug 01, 2016, 01.16 am
Aug 01, 2016, 01.16 am
Sound is disappears with brake on. So I'm assuming it has to be the pads.
Coconut
Trophy God ‐
9939
#2
Coconut
Trophy God
Posts: 9939
Bike: 2017 Trophy SE
City / Town: South Birmingham
Country:
Re: Need help with a diagnosis for a front end noise when turning the
Reply #2 on:
Aug 01, 2016, 06.19 am
Aug 01, 2016, 06.19 am
It could well be the pads - have you checked the disc / rotor "bobbins" are not seized up
which allow the disc to be semi-floating ?
Last Edit: Feb 11, 2021, 12.01 pm by Coconut
HAVE YOU HAD YOUR IGNITION WIRING SAFETY RECALL INSPECTION DONE YET ?
( Click for details )
flyingz06
Trophy Pro ‐
177
Topic Author
#3
flyingz06
Trophy Pro
Topic Author
Posts: 177
Bike: Triumph Trophy
City / Town: Indiana
Re: Need help with a diagnosis for a front end noise when turning the
Reply #3 on:
Aug 01, 2016, 01.01 pm
Aug 01, 2016, 01.01 pm
Originally Posted by
Coconut
It could well be the pads - have you checked the disc / rotor "bobbins" are not seized up
which allow the disc to be semi-floating ?
OK im a new at some of this. why would a frozen bobbin make that sound? Or why are you referencing the bobbin? How do I check them Coconut?
Coconut
Trophy God ‐
9939
#4
Coconut
Trophy God
Posts: 9939
Bike: 2017 Trophy SE
City / Town: South Birmingham
Country:
Re: Need help with a diagnosis for a front end noise when turning the
Reply #4 on:
Aug 01, 2016, 07.15 pm
Aug 01, 2016, 07.15 pm
Just use the SEARCH button up there on the Menu Bar, and enter "Bobbins".
This post :
"Front Brake Discs Warped"
discusses "Bobbins",
and has Photo's and a link to a video on how to clean them ( Posts 23 & 24 ).
The Bobbins allow a little side to side movement of the discs ( rotors ),
helping to keep them centralised between the brake pads.
My thought process is that if they have seized up solid ( as they can do ),
they may have seized slightly out of true alignment and in severe cases
can give the impression of being warped.
If one or both of the discs ( rotors ) are not running totally true
as the wheel rotates part of the disc ( rotor ) could lightly make contact
with one or more of the brake pads resulting in a noise, which might be what you can hear.
This
could
be exacerbated when turning the motorcycle
due to the additional sideways forces that are produced when turning.
Cheers
Last Edit: Feb 11, 2021, 12.01 pm by Coconut
HAVE YOU HAD YOUR IGNITION WIRING SAFETY RECALL INSPECTION DONE YET ?
( Click for details )
flyingz06
Trophy Pro ‐
177
Topic Author
#5
flyingz06
Trophy Pro
Topic Author
Posts: 177
Bike: Triumph Trophy
City / Town: Indiana
Re: Need help with a diagnosis for a front end noise when turning the
Reply #5 on:
Aug 02, 2016, 01.55 am
Aug 02, 2016, 01.55 am
you are the king!
thank you. I watched a few videos online and will free them up tomorrow night. They are frozen
Coconut
Trophy God ‐
9939
#6
Coconut
Trophy God
Posts: 9939
Bike: 2017 Trophy SE
City / Town: South Birmingham
Country:
Re: Need help with a diagnosis for a front end noise when turning the
Reply #6 on:
Aug 02, 2016, 10.19 am
Aug 02, 2016, 10.19 am
Let us know if it cures the "noise".
If they've been seized for a while, and after freeing off the bobbins
there is any sensation if "pulsing" when the front brake is applied,
it would be worth checking for any excess run-out,
( Maximum allowable run out is 0.15mm ),
which would indicate if the discs / rotors have warped.
Cheers,
Last Edit: Feb 11, 2021, 12.00 pm by Coconut
HAVE YOU HAD YOUR IGNITION WIRING SAFETY RECALL INSPECTION DONE YET ?
( Click for details )
1150newguy
Ex Member
Trophy Pro ‐
490
#7
1150newguy
Ex Member
Trophy Pro
Posts: 490
Re: Need help with a diagnosis for a front end noise when turning the
Reply #7 on:
Aug 02, 2016, 11.36 pm
Aug 02, 2016, 11.36 pm
I haven't suffered any brake issues, but after reading about problems some have had I decided to do a "bobbin check" on my 2014 Trophy. After 40,000 miles mine were free enough that they would turn with a wrench while I was tightening the bolt. I went ahead and gave them a spin with the drill along with a shot of brake cleaner. While I was doing this I was thinking about what would cause some to have seized bobbins and others to have no issues. I am sure environment plays a big role. Here in southern Ohio we don't deal with salt air and we have less rainfall than many areas. We do get some high humidity from time to time. I tend to use my front brakes pretty aggressively at times, could that help keep the bobbins free? Who knows? Just thinking out loud here.
1
2
3
...
5
Go Up
« previous
next »
Recent Topics
OEM Trophy tank bag, part: A9510095
[
Items for Sale
]
RedMerle
Today
at 09:38 pm
Tank Bag
[
Items Wanted
]
RedMerle
Today
at 08:08 pm
Third replacement cylinder head shows early signs of wear
[
Maintenance, Servicing, and Mechanical
]
STJIM
Today
at 03:22 pm
Triumph Trophy 1215 Tank Bag 10-15 Litre Part #A9510095
[
Items Wanted
]
Ad™
Today
at 02:31 pm
How to add power to the left pannier
[
"How To's" Technical Guides
]
Paul
Yesterday
at 10:52 pm
Stock rider seat for 2015
[
Items for Sale
]
Hank.SD
Yesterday
at 05:18 pm
Heated Grips
[
Items for Sale
]
Kiloecho
Yesterday
at 01:54 pm
A bad day!
[
Triumph Trophy - General Chat
]
RedMerle
Yesterday
at 01:21 pm
First Aid Kits
[
Triumph Trophy - General Chat
]
sin_tiger
Yesterday
at 12:17 am
Toe shift protector
[
Riding Gear, Clothing, and Apparel
]
Emerson
May 15, 2022, 05.46 pm
tweedy-bunch