After BBK Install, soft 2inches :D - MyG37

Go Back  MyG37 > Tech Area > Brakes, Suspension, Wheels & Tires > Brakes & Suspension
Reload this Page >

After BBK Install, soft 2inches :D

Notices

After BBK Install, soft 2inches :D

Reply

 
 
 
Old 05-12-2018, 10:39 PM
  #1  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
After BBK Install, soft 2inches :D

Did bbk install today. Braking power is awesome compared to stock 2 cylinder calipers. Braking is very progressive, but brake pedal is not so hard as it used to be on initial brake press.

It is not spongy, just 1-2 inches are empty and then very linear brake feel.
Bleeded all in correct order, inner nipple first. Master cylinder never went dry during install/bleeding.

Any thoughts?
Dzionassi is online now  
Reply With Quote
Old 05-13-2018, 06:47 PM
  #2  
Surfnazi
Registered User
 
Join Date: Nov 2013
Posts: 1,217
Thanked 81 Times in 78 Posts
Rebleed it
Surfnazi is offline  
Reply With Quote
Old 05-13-2018, 07:26 PM
  #3  
slartibartfast
Super Moderator
iTrader: (7)
 
Join Date: Oct 2014
Location: Houston, Tx
Posts: 4,304
Thanked 475 Times in 424 Posts
I have the Akebonos. When bleeding the brakes, the pedal is rock hard and immediate. As soon as I turn on the car, the pedal has travel before retardation begins and some of the firmness is gone. The car stops just fine, though. It's been this way since new. Something designed in and I can only speculate as to why.
slartibartfast is offline  
Reply With Quote
Old 05-13-2018, 08:01 PM
  #4  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
here is the thing, response of the pedal is little worse compared to original 2 cylinder calipers, but braking power and braking modulation is way better with Akebonos.. Just initial brake press is too soft.... Try to re-bleed later this week.
Dzionassi is online now  
Reply With Quote
Old 05-13-2018, 10:52 PM
  #5  
slartibartfast
Super Moderator
iTrader: (7)
 
Join Date: Oct 2014
Location: Houston, Tx
Posts: 4,304
Thanked 475 Times in 424 Posts
Remember that you're moving more fluid. Did you get the Akebono-specific master cylinder?
slartibartfast is offline  
Reply With Quote
Old 05-13-2018, 11:10 PM
  #6  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
Originally Posted by slartibartfast View Post
Remember that you're moving more fluid. Did you get the Akebono-specific master cylinder?
No, I was told it is all pretty much the same....

EDIT: But i was suspecting this could be it...

Last edited by Dzionassi; 05-13-2018 at 11:45 PM.
Dzionassi is online now  
Reply With Quote
Old 05-14-2018, 05:36 AM
  #7  
Surfnazi
Registered User
 
Join Date: Nov 2013
Posts: 1,217
Thanked 81 Times in 78 Posts
How many miles are on the car? Did you check condition of brake lines
Surfnazi is offline  
Reply With Quote
Old 05-14-2018, 08:01 AM
  #8  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
Originally Posted by Surfnazi View Post
How many miles are on the car? Did you check condition of brake lines
It is a new car (15k miles), with new SS brake lines.
Dzionassi is online now  
Reply With Quote
Old 05-15-2018, 06:17 AM
  #9  
Surfnazi
Registered User
 
Join Date: Nov 2013
Posts: 1,217
Thanked 81 Times in 78 Posts
You got air in your lines still then or vacuum line on master cylinder is loose or bad
Surfnazi is offline  
Reply With Quote
Old 05-15-2018, 11:04 PM
  #10  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
Originally Posted by Surfnazi View Post
You got air in your lines still then or vacuum line on master cylinder is loose or bad
I hope so, but i don't believe so. Will try to bleed one more time...
Dzionassi is online now  
Reply With Quote
Old 05-15-2018, 11:33 PM
  #11  
blnewt
Administr8r&DIY cheapsk8
iTrader: (12)
 
blnewt's Avatar
 
Join Date: Nov 2009
Location: New Mexico
Posts: 24,368
Thanked 4,695 Times in 3,998 Posts
You said your master cylinder never went dry, but do you recall how low it got during the fluid change?
blnewt is offline  
Reply With Quote
Old 05-15-2018, 11:38 PM
  #12  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
Originally Posted by blnewt View Post
You said your master cylinder never went dry, but do you recall how low it got during the fluid change?
hair lower minimum mark...
Dzionassi is online now  
Reply With Quote
Old 05-16-2018, 05:42 AM
  #13  
Surfnazi
Registered User
 
Join Date: Nov 2013
Posts: 1,217
Thanked 81 Times in 78 Posts
You need to use a pressure bleeder if you can access to one
Surfnazi is offline  
Reply With Quote
Old 05-18-2018, 08:20 PM
  #14  
Dzionassi
Registered User
Thread Starter
 
Join Date: Feb 2017
Posts: 148
Thanked 7 Times in 7 Posts
Quick update:

After additional 2X 500ml Motul 5.1 bleed, Problem fixed. 2 soft inches, became 2 hard inches.
Dzionassi is online now  
Reply With Quote
The Following User Says Thank You to Dzionassi For This Useful Post:
blnewt (05-18-2018)
Old 05-18-2018, 11:09 PM
  #15  
blnewt
Administr8r&DIY cheapsk8
iTrader: (12)
 
blnewt's Avatar
 
Join Date: Nov 2009
Location: New Mexico
Posts: 24,368
Thanked 4,695 Times in 3,998 Posts
Nothing like a little Viagra bleed to make things right


Glad it worked out!
blnewt is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: After BBK Install, soft 2inches :D


Archive Advertising Cookie Policy Privacy Statement Terms of Service

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.