Author Topic: Front Brakes Dragging  (Read 5033 times)

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#20

Offline fjrod

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Re: Front Brakes Dragging
Reply #20 on: 02 July, 2019, 02:41:22 AM
The guy from BrakeCrafters I talked to made a lot of sense so I thought I should pass it on.  As mentioned previously, my bike is like new BUT it sat around a lot.  Brake fluid is hygroscopic so sitting around theoretically the fluid could get water in it.  Yes the brakes are a closed system but who knows what went on over 9 years.  Water in brake fluid sinks to the bottom.  Water is heavier than brake fluid.  The guy has experienced water accumulating in the grooves of the seals and between them forming corrosion.  Kind of a variation on what Paul was talking about.  With four sets of seals it only takes one to get corroded to experience the sticking we are experiencing.  Since I am buying a complete kit, I think I will bite the bullet and just replace all the seals on both calipers. 

#21

Offline Paul2bikes

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Re: Front Brakes Dragging
Reply #21 on: 02 July, 2019, 07:05:31 AM
We get there eventually eh.

Also: '16 Tiger 800, '95 Yamaha Serow, '58 Ariel FH.

#22

Offline Paullie

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Re: Front Brakes Dragging
Reply #22 on: 02 July, 2019, 12:32:58 PM
But some people take a bit longer than others ....  :015:

#23

Offline fjrod

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Re: Front Brakes Dragging
Reply #23 on: 02 July, 2019, 12:46:23 PM
It helps if you know where "there" is  :001:

#24

Offline Monty9120

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Re: Front Brakes Dragging
Reply #24 on: 03 July, 2019, 10:27:35 PM
Seals are cheap as long as the piston is ok the kits can get pricy then

I used a bit of red rubber grease to sit the seals in afterwards. As the sliding part is done by the front discs if you ever do a Cali per thatís floating you need to strip and clean the slider too

#25

Offline fjrod

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Re: Front Brakes Dragging
Reply #25 on: 04 July, 2019, 04:36:45 AM
Back to getting "there" wherever "there" is. My calipers are both on and just waiting for lines to filled and pads to close on the rotors so I thought I'd take a look at some YouTube videos.  The first one I looked at was a guy changing pads on a Tiger Sport with a complete drain and refill of the fluid.  Lo and behold, when he was done and totally pleased with the job he had done the front wheel did not spin free.  It dragged.  Another observation I had was when I just cracked my radial bolts to loosen them, still tight mind you, the wheel spun free.  Just wondering how many guys have the front dragging and don't realize it???? 

#26

Offline Paul2bikes

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Re: Front Brakes Dragging
Reply #26 on: 04 July, 2019, 06:54:58 AM
We would notice any drag when we turn the wheel to clean it...ÖÖ.after every ride.  :038:

Lot more to cleaning than having a clean bike, any potential problems are usually found, hence Trumpet putting it in the handbook.
Also: '16 Tiger 800, '95 Yamaha Serow, '58 Ariel FH.

#27

Offline Monty9120

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Re: Front Brakes Dragging
Reply #27 on: 04 July, 2019, 07:23:07 AM
I had a bit of drag but that was after new front disc pads and wheel bearings

I knew the pistons moved in smoothly so didnít worry me much itís a lot better now after being run in

#28

Offline Paul2bikes

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Re: Front Brakes Dragging
Reply #28 on: 04 July, 2019, 09:44:30 AM
There should not be any drag, the seals are designed to pull the pistons back when the brake is released.

Brake problems can often be caused by operator error.
Also: '16 Tiger 800, '95 Yamaha Serow, '58 Ariel FH.

#29

Offline fjrod

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Re: Front Brakes Dragging
Reply #29 on: 04 July, 2019, 01:03:17 PM
Go to the end of the YouTube video below.  Mine wasn't that tight. Not even close.  Two R1200GS's, and two FJR's, my previous four bikes spun like a merry-go-round.  No pulling like in the video, give them a spin and they went around two or three times with NO, NADA, Zilch assistance.  I changed pads on three of those bikes.  I have explained the age of my bike several times and I would like to emphasize there is nor was there ANY corrosion on my pistons nor in the seal grooves.  This is my fourth Triumph and I've had more issues with brakes on Triumphs than any other bike I have owned in my 50+ years of riding and maintaining motorcycles.

https://www.bing.com/videos/search?q=fill+brake+fluid+triumph+tiger+1050&view=detail&mid=A24A3D4EB7B8BEFC6504A24A3D4EB7B8BEFC6504&FORM=VIRE

One point to be made is that your average rider IMO does not lift the front wheel and spin it.  Even the center stand is an option on a 1050  which means the ability to check how well the front tire spins is less likely than other bikes.  Bottom line is I'm not convinced on what is actually causing this issue.  If you are happy with your explanation and you don't have the issue that's fine but statistically that really doesn't prove anything.
Last Edit: 04 July, 2019, 01:07:12 PM by fjrod

 



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