You are Unregistered, please register to gain Full access.    
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Band Of Riders > BoRn > The Garage
   

Reply
 
Thread Tools Display Modes
Old 08-12-2018, 05:11 PM   #1
mattr302
9.5 > 10
 
mattr302's Avatar
 
Call Me: Raby
Location: Hamden
Odometer: 40k
Bike: FZ6, F4i, DR350
Posts: 3,207

Default Brake caliper cleaning

I've got the forks off the Tiger now to have the leaky seals replaced. I am going to be replacing the brake pads, but the calipers are covered in a grimy mixture of fork oil and brake dust. I know some a bunch of cleaning solvents will cause the piston seals to swell. I'm thinking a soapy water solution in my HF ultrasonic cleaner, set it up underneath the front end and soak the calipers in there one at a time (brake lines still connected).

Good idea or bad idea? Other ideas?
mattr302 is offline   Reply With Quote

Old 08-12-2018, 06:10 PM   #2
eric351w
Lord Dark Helmet
 
eric351w's Avatar
 
Call Me: Duh
Location: Dirty Water
Odometer: Mucho
Bike: Nada
Posts: 2,994

Default

Depends, how many miles on the bike? if it were me and the bike had some miles on it I would do a full tear down/rebuild while I had the down time especially if they are that dirty. Who knows what could have worked it’s way into the seals. I do however tend to be overly cautious on my things. Otherwise I’m sure you’ll be fine with a quick soapy scrub down and inspection.
__________________
eric351w is offline   Reply With Quote
Old 08-12-2018, 09:12 PM   #3
ITGbuDeev
Ginga' Ninja

 
ITGbuDeev's Avatar
 
Call Me: Kyle
Location: beacon falls
Odometer: 20,000
Bike: VFR800, zx6rr
Posts: 6,207

Default

similar thoughts as eric.

If they have enough miles, drop everything off, pop the pistons out, clean, new seals, new fluid.

It's highly possible the cakey mixture you have is due to some slightly leaking brake fluid and dirt, which means the seals are going.

If you don't want to drop everything off, use brake fluid and a tooth brush to clean. I personally wouldn't use a solvent on the seals/o rings. they are designed to work with brake fluid. A standard DOT3 fluid will help break down the gunk.
ITGbuDeev is offline   Reply With Quote
Old 08-12-2018, 10:04 PM   #4
makct04
Too Short to drag knee.
 
makct04's Avatar
 
Call Me: Mo
Location: CT
Odometer: Couple
Bike: 600RR
Posts: 5,054

Default

Matt, you forgot to mention that you don't plan on keeping the bike and trying to keep costs down.

Also, I'm with Kyle. Using brake fluid to clean off that gunk would be fine and it'll do a great job of penetrating through the gunk.
__________________
Team Brown - LRRS #521
makct04 is offline   Reply With Quote
Old 08-12-2018, 11:14 PM   #5
Kurlon
Shrimp Boat Captain
 
Call Me: Joshua
Location: Maine
Odometer: 25k
Bike: Yamaha FZR400RR SP
Posts: 1,224

Default

Don't drop the calipers into an ultrasonic tank while still plumbed to the bike. You WILL introduce water into the system that way.
__________________
771 Racing -=- FaceBook
Backed by Heroic Racing Apparel
A-ko - 1992 FZR400RR SP / Mistake - 1992 WR250ZD / Facade - 2003 YZF-R6 / 2000 LS650P
Kurlon is offline   Reply With Quote
Old 08-13-2018, 02:45 AM   #6
chrismpero
Choo Choo
 
chrismpero's Avatar
 
Call Me: Chris
Location: S.E. CT
Odometer: Enuff
Bike: 2016 Kawasaki Concours 14
Posts: 2,342

Default

I forgot who it was that said it, someone who worked at TTD. Older guy,engineer type, anyways... He said use Silicone spray and a toothbrush. I always thought it swelled rubber but who am i? I did this with the R1 when i did pads. I soaked the dust boots, scrubbed then gave em a quick shot with brake clean before i pushed the pistons back in. Worked quite well and they looked brandy new after. I had like 15k on it at the time.
chrismpero is offline   Reply With Quote
Old 08-13-2018, 06:05 AM   #7
csmutty
Freakin' Luddite
 
csmutty's Avatar
 
Call Me: Christian
Location: Pomfret
Odometer: Seventy
Bike: 1992 GS500, 1998 EX500, 2003 YZ125
Posts: 10,272

Default

Quote:
Originally Posted by chrismpero View Post
I forgot who it was that said it, someone who worked at TTD. Older guy,engineer type, anyways... He said use Silicone spray and a toothbrush. I always thought it swelled rubber but who am i? I did this with the R1 when i did pads. I soaked the dust boots, scrubbed then gave em a quick shot with brake clean before i pushed the pistons back in. Worked quite well and they looked brandy new after. I had like 15k on it at the time.
Probably Aaron.
__________________
-Christian LRRS/CCS #856 ECK RacingGMD Computrack Boston | Pine Motorparts/PBE Specialists | Woodcraft | Street & Competition | OnTrack Media

2011 Pit Bike Race CHAMPION!
csmutty is offline   Reply With Quote
Old 08-13-2018, 11:56 AM   #8
richw
Ranting Geezer
 
richw's Avatar
 
Call Me: Rich
Location: Baltic, CT
Odometer: 140000
Bike: VStrom 1k DRZ 250
Posts: 3,343

Default

Engine Wash Spray, 5 minutes, hose off

Be careful when you push the pistons in though
__________________
USA doom sealed Dec. 2, 1970
richw is offline   Reply With Quote
Old 08-13-2018, 01:17 PM   #9
Tin
Shrimp
 
Tin's Avatar
 
Call Me: Tin
Location: Bridgeport
Odometer: 15,000
Bike: '16 FZ-09
Posts: 77

Default

It's kinda hard to clean the pistons well when they're on the calipers IMO. Last time I tried to clean them while they're on, they ended up sticking and wear out my brand new brake pads in less than a week... so I think to rebuild the system would be a better route here and save you time and money in the long run..
Tin is offline   Reply With Quote
Old 08-14-2018, 12:19 AM   #10
chrismpero
Choo Choo
 
chrismpero's Avatar
 
Call Me: Chris
Location: S.E. CT
Odometer: Enuff
Bike: 2016 Kawasaki Concours 14
Posts: 2,342

Default

Quote:
Originally Posted by csmutty View Post
Probably Aaron.
Nope that wasn't him.. older guy, 50's
chrismpero is offline   Reply With Quote
Reply

Tags
brake, caliper, cleaning

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pre-drilled Titanium Bolt M10x25 (SV brake caliper) - $7.75@ DucatiMichael Gear, Parts or Accessories 20 07-28-2015 10:16 PM
Brake caliper pistons tot nextending equally? mattr302 The Garage 33 07-23-2014 02:35 PM
brake caliper rebuild, and bleed crazyirish101 The Garage 4 03-25-2010 07:41 AM
Rear Brake caliper jiggs500 The Garage 4 05-26-2008 06:06 PM



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Contact Us - BoRn - Archive - Top