Go Back  ClubLexus - Lexus Forum Discussion > Lexus Model Forums > GS Models > GS - 2nd Gen (1998-2005) > Suspension and Brakes
DIY: Remove stock abs/vsc master cylinder ---> Install power brake booster & master >

DIY: Remove stock abs/vsc master cylinder ---> Install power brake booster & master

Notices
Suspension and Brakes Springs, shocks, coilovers, sways, braces, brakes, etc.

DIY: Remove stock abs/vsc master cylinder ---> Install power brake booster & master

 
Old 03-05-12, 06:00 PM
  #1  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default DIY: Remove stock abs/vsc master cylinder ---> Install power brake booster & master

My disclaimer: this may not be 100% complete as some fabbing/creativity is involved. Do this at your own risk. I am not liable for any reason if you attempt this.


This is what i did to remove the entire ABS/VSC/TRAC system out of my 03 GS300.

parts i used:
Wilwood prop valve
3/16 compression tee's
new gaskets
new nuts with built in lock washers

the booster and master cylinder are from a 2000 Toyota Avalon. The booster bolt pattern is identical to the GS, so no drilling/modifying/hacking up the firewall. Help from a friend at Toyota for that tip!

1. remove all fuses, relays, buzzer, abs/vsc ecu
- remove 3 relays next to the unit
- remove abs ecu under dash
- remove buzzer next to ecu under dash
- remove 100a fuse next to battery (yellow circle)
- remove 40a fuse next to battery (grey circle)

2. remove stock unit
-unplug all harnesses to the unit
- remove bolt betwen pedal and booster
- remove 4 bolts under dash at pedal assembly
- remove 2 front lines from unit
- remove 2 rear lines from unit
carefully remove the whiole unit

3. install new booster/master
- install booster alone with gasket and nuts.
- install master cyl with gasket and tighten
- measure distance and make a spaces to thread on booster to attach to pedal

4. new lines
- cut, then crimp the lines inverted double flare the old lines to size and length
OR get stainless lines made
- put the 2 rears into a Tee and then to willwood prop valve OUT
- put the wilwood IN to the master furthest away from the firewall
- put the front lines into a Tee and then to the master closest to firewall
- bleed the lines and follow wilwoods instructions to set and test and dial in the prop valve. BE CAREFUL AND UNDERSTAND HOW IT WORKS BEFORE YOU GO ADJUSTING IT.
AMSMIKE is offline  
Old 03-05-12, 06:01 PM
  #2  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

Name:  DSC06221Copy.jpg
Views: 3593
Size:  250.7 KB
Name:  DSC06227Copy.jpg
Views: 3422
Size:  226.9 KB



Name:  DSC06236Copy.jpg
Views: 3839
Size:  249.9 KB
Name:  DSC06238Copy.jpg
Views: 3615
Size:  282.9 KB
Name:  DSC06237Copy.jpg
Views: 3417
Size:  252.2 KB


Name:  9314735b.jpg
Views: 3560
Size:  1.89 MB
Name:  1a3263aa.jpg
Views: 3453
Size:  1.66 MB
Name:  1c24b2bf.jpg
Views: 3755
Size:  1.76 MB


Name:  704d40dd.jpg
Views: 3510
Size:  2.65 MB
Name:  80a865a8.jpg
Views: 3421
Size:  2.13 MB
Name:  1518b326.jpg
Views: 3423
Size:  1.49 MB

Name:  5ecb5468.jpg
Views: 3544
Size:  2.09 MB
Name:  4feb6aaf.jpg
Views: 3556
Size:  2.19 MB
Name:  6fa19ee2.jpg
Views: 3417
Size:  1.72 MB

Name:  9318835a.jpg
Views: 3420
Size:  1.49 MB

Last edited by AMSMIKE; 03-05-12 at 06:09 PM.
AMSMIKE is offline  
Old 03-05-12, 06:03 PM
  #3  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

finished plumbing all the lines.


Name:  0d46ff15.jpg
Views: 3481
Size:  1.67 MB
Name:  d2755a9c.jpg
Views: 3419
Size:  1.69 MB
Name:  b6cb2595.jpg
Views: 3453
Size:  1.63 MB

Last edited by AMSMIKE; 03-06-12 at 05:01 PM.
AMSMIKE is offline  
Old 03-06-12, 05:03 PM
  #4  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

everything is done. updated pictures above.

tomorrow bleed the lines
AMSMIKE is offline  
Old 03-07-12, 06:53 AM
  #5  
99 GS3
Lexus Champion
iTrader: (14)
 
99 GS3's Avatar
 
Join Date: Sep 2009
Location: VA
Posts: 1,781
Likes: 0
Received 19 Likes on 17 Posts
Default

Awesome! How's it feel, have you taken it out yet?
99 GS3 is offline  
Old 03-07-12, 08:07 AM
  #6  
justablkv8
Lead Lap
iTrader: (2)
 
Join Date: Dec 2011
Location: FL
Posts: 508
Likes: 0
Received 3 Likes on 2 Posts
Default

damn it. i should have waited!!!!!!!!!
justablkv8 is offline  
Old 03-21-12, 10:11 AM
  #7  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

another one done yesterday!

Name:  ecb082ce.jpg
Views: 3711
Size:  1.63 MB
AMSMIKE is offline  
Old 06-08-12, 11:05 PM
  #8  
speedaddic
Lexus Champion
iTrader: (10)
 
speedaddic's Avatar
 
Join Date: Mar 2004
Location: Austin,TX
Posts: 4,252
Likes: 0
Received 2 Likes on 2 Posts
Default

Sick!!! I love it! Gonna try this now!
speedaddic is offline  
Old 06-08-12, 11:17 PM
  #9  
speedaddic
Lexus Champion
iTrader: (10)
 
speedaddic's Avatar
 
Join Date: Mar 2004
Location: Austin,TX
Posts: 4,252
Likes: 0
Received 2 Likes on 2 Posts
Default

the stock unit looks 1 1/4" longer, how did you make the new one fit? Did you weld on extension?
speedaddic is offline  
Old 06-09-12, 08:53 AM
  #10  
99 GS3
Lexus Champion
iTrader: (14)
 
99 GS3's Avatar
 
Join Date: Sep 2009
Location: VA
Posts: 1,781
Likes: 0
Received 19 Likes on 17 Posts
Default

Originally Posted by speedaddic View Post
the stock unit looks 1 1/4" longer, how did you make the new one fit? Did you weld on extension?
Yeah, the piston extension to reach the pedal is what he is showing in this pic.

Name:  80a865a8.jpg
Views: 3386
Size:  2.13 MB
99 GS3 is offline  
Old 06-09-12, 02:02 PM
  #11  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by speedaddic View Post
the stock unit looks 1 1/4" longer, how did you make the new one fit? Did you weld on extension?
Originally Posted by 99 GS3 View Post
Yeah, the piston extension to reach the pedal is what he is showing in this pic.
correct
AMSMIKE is offline  
Old 06-09-12, 03:30 PM
  #12  
speedaddic
Lexus Champion
iTrader: (10)
 
speedaddic's Avatar
 
Join Date: Mar 2004
Location: Austin,TX
Posts: 4,252
Likes: 0
Received 2 Likes on 2 Posts
Default

what degree double flare is that? 37?
speedaddic is offline  
Old 06-09-12, 06:54 PM
  #13  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by speedaddic View Post
what degree double flare is that? 37?
45 deg double flare
AMSMIKE is offline  
Old 06-10-12, 10:39 AM
  #14  
speedaddic
Lexus Champion
iTrader: (10)
 
speedaddic's Avatar
 
Join Date: Mar 2004
Location: Austin,TX
Posts: 4,252
Likes: 0
Received 2 Likes on 2 Posts
Default

Thanks for the info Mike! I just happen to have a snap on 45 degree double flare tool I never used.
speedaddic is offline  
Old 06-11-12, 10:50 PM
  #15  
AMSMIKE
Lead Lap
Thread Starter
iTrader: (40)
 
AMSMIKE's Avatar
 
Join Date: May 2010
Location: So Cal
Posts: 765
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by speedaddic View Post
Thanks for the info Mike! I just happen to have a snap on 45 degree double flare tool I never used.
that's exactly what i used to make the lines.
AMSMIKE is offline  

Thread Tools
Search this Thread
Quick Reply: DIY: Remove stock abs/vsc master cylinder ---> Install power brake booster & master


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: