New Wheels Installed - Front Calipers Pistons Not Retracting - CBR Forum - Enthusiast forums for Honda CBR Owners


F4i - Main Forum Main F4i discussion board

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 06-14-2018, 10:07 PM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default New Wheels Installed - Front Calipers Pistons Not Retracting

I've got a strange issue that I can't seem to wrap my head around... so I bought new tires and had them installed on my rims and, I can barely even move the tire on the stands. After installing the tires the front tire will spin maybe 20 degrees at most when i use a lot of force. The pads are hugging the rotors very tight.

A bit of information...

I believe I may have squeezed the front brake WHILE the calipers were REMOVED from the rotor.
I have tried to pry open the brake pads and used a c-clamp to press the pistons down.
I have opened the front brake resevoir, and again pushed the pads into the pistons to push them all the way down. This caused quite a bit of brake fluid to push out of the resevoir, now it's not even showing up in the level indicator oops lol
I've tried loosening the front 4 fork bolts, tightening the axle nut, and pushing down on the front end to correct the axle.
I've tried riding around the block a few times.. didn't fix, and the rotor is too hot to touch after a 5-10 min ride.
Spacers are on the axle
I think there's a few other things I've mentioned but my brain is fried at the moment.

Note... the pistons in the caliper seem to retract when I use a screwdriver/c-clamp with not that much force... so they can't be seized...

Any thoughts or suggestions on this matter would be greatly appreciated








Last edited by S1l3nced; 06-14-2018 at 10:11 PM.
Reply With Quote
  #2  
Old 06-14-2018, 11:12 PM
74demon's Avatar
Administrator and MVN, March 2012/Oct 2013 ROTM
 
Join Date: Sep 2011
Location: socal 949/951
Posts: 7,401
Default

Did you mix up the axle spacers?
Reply With Quote
  #3  
Old 06-14-2018, 11:16 PM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default

Quote:
Originally Posted by 74demon View Post
Did you mix up the axle spacers?
I've checked the manual over a few times to make sure this isn't the case. I'll double check it again tomorrow.

I've been going through the forums on this matter.. and I've seen you reply quite a lot regarding this. I've not messed with the master cylinder yet.. (kind of scared tbh sounds scary)... I'm also not sure when the brake lines were last replaced... I haven't cleaned or rebuilt the calipers at all.

Now with all that said, what's weird.. is that before I removed the tire, the brakes were NOT doing this.
Now that the tire is back on, I must've done something wrong... why aren't the pistons retracting fully... I've never scratched my head so hard
Reply With Quote
  #4  
Old 06-15-2018, 05:49 AM
74demon's Avatar
Administrator and MVN, March 2012/Oct 2013 ROTM
 
Join Date: Sep 2011
Location: socal 949/951
Posts: 7,401
Default

The reason I suspect that the spacers are in wrong is that it happened to me before when I used to let a shop mount my tires. It was fine when I brought it in, the changed the tires, and they were dragging so bad the the bike would barely roll when I left.

Yours was fine before you took off the wheel, but now there is a problem. Sounds to me like the same scenario.
Reply With Quote
  #5  
Old 06-15-2018, 08:43 AM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default

Quote:
Originally Posted by 74demon View Post
The reason I suspect that the spacers are in wrong is that it happened to me before when I used to let a shop mount my tires. It was fine when I brought it in, the changed the tires, and they were dragging so bad the the bike would barely roll when I left.

Yours was fine before you took off the wheel, but now there is a problem. Sounds to me like the same scenario.
True... I'll have another look tonight.

Does it matter which way you put them on as well? as in you can put it on the right side, but just backwards? (turned the other way around)
Reply With Quote
  #6  
Old 06-15-2018, 09:24 AM
74demon's Avatar
Administrator and MVN, March 2012/Oct 2013 ROTM
 
Join Date: Sep 2011
Location: socal 949/951
Posts: 7,401
Default

Yes, it matters. They have to fit in the seal.
The one with the big flange goes on the right side (the side with the axle bolt)
Reply With Quote
  #7  
Old 06-15-2018, 10:48 AM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default

Quote:
Originally Posted by 74demon View Post
Yes, it matters. They have to fit in the seal.
The one with the big flange goes on the right side (the side with the axle bolt)

Does it matter if I rotate the big one around? I mean, like 180 degrees, as in it only goes on ONE WAY? Or is it bi-directional? Or am I losing my mind
Reply With Quote
  #8  
Old 06-15-2018, 11:36 AM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default

Another thing to add here.. please note that when the calipers are OFF... the wheel spins freely... not sure if that means the spacers were installed correctly.... or if it will still spin though the spacers are installed incorrectly, and without the calipers... but once the calipers are installed, all goes to shyt... lol
Reply With Quote
  #9  
Old 06-15-2018, 12:03 PM
74demon's Avatar
Administrator and MVN, March 2012/Oct 2013 ROTM
 
Join Date: Sep 2011
Location: socal 949/951
Posts: 7,401
Default

The spacers mixed will offset the wheel just enough that the rotor will bind on the pads.

They are round, so turning them 180 won't matter.
Reply With Quote
  #10  
Old 06-15-2018, 12:04 PM
Junior Member
Thread Starter
 
Join Date: Jun 2018
Posts: 16
Default

Quote:
Originally Posted by 74demon View Post
The spacers mixed will offset the wheel just enough that the rotor will bind on the pads.

They are round, so turning them 180 won't matter.
OK im gonna take it apart when I get home and reply back here with results
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
installed gold calipers sjsharks33 F4i - Main Forum 9 05-16-2011 07:10 PM
Brand new Erion FX ZEMKE 954 Pistons dbehrend416 CBR 954RR 8 06-30-2009 01:44 PM
WHEELS! WHEELS! WHEELS! Diablo Runner CBR 954RR 31 08-12-2008 06:27 PM
More Questions, Brakes,(Rotors & Calipers), Wheels roderickdj 1000 Modifications 0 04-08-2008 12:21 AM
Cost of new pistons and rebore? captain crash CBR 600F3 4 04-20-2007 03:52 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 03:21 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.