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

DIY master cylinder repair

Thread Tools
 
Search this Thread
 
Old 01-07-13, 05:48 AM
  #1  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default DIY master cylinder repair

Just want to give back to the community. I know this is a common issue and I know there may be other reasons for abs brake vsc and the buzzer alarm going on but this is what I found on mine. Once the alarm was on if I tapped the motor on the master cylinder I could get the lights to go off. I was going to by the whole unit but decided to play with it. I found that the comutator was damaged so my motor would not spin sometimes. I will see if I can upload pictures but in any case I took it to a local motor shop and they rebuilt it for me. Made it new bearings and all.
Old 01-07-13, 06:07 AM
  #2  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

How do I upload pictures?
Old 01-07-13, 06:43 AM
  #3  
porn-adkt
Lexus Champion
iTrader: (37)
 
porn-adkt's Avatar
 
Join Date: Apr 2009
Location: Westchester, NY
Posts: 2,210
Received 10 Likes on 10 Posts
Default

Originally Posted by chitown18
How do I upload pictures?

http://tinypic.com/
Old 01-07-13, 09:50 AM
  #4  
blacksedan
Lead Lap
iTrader: (4)
 
blacksedan's Avatar
 
Join Date: May 2006
Location: tx
Posts: 514
Likes: 0
Received 0 Likes on 0 Posts
Default

and then copy the url for "message forums" and simply paste it and post it
Old 01-07-13, 07:38 PM
  #5  
sam12345
Lexus Champion
iTrader: (1)
 
sam12345's Avatar
 
Join Date: Nov 2009
Location: tx
Posts: 2,044
Likes: 0
Received 9 Likes on 9 Posts
Default

Cool, if mine ever goes out I got a local motor rebuild guy. Thanks for the tip
Old 01-08-13, 11:32 AM
  #6  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default


This is the damged part

Last edited by chitown18; 01-08-13 at 11:40 AM.
Old 01-08-13, 11:38 AM
  #7  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

Old 01-08-13, 11:45 AM
  #8  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for showing me how to upload. I didnt even empty the reservoir lol not too bad to take apart. Must bleed brakes afterward but all in all easy job the longest wait was the repair on the motor I wonder if there is a place you could buy this motor? If anyone has questions just holla!!!!
Old 01-08-13, 11:52 AM
  #9  
sakataj
Lexus Fanatic
iTrader: (182)
 
sakataj's Avatar
 
Join Date: Jun 2008
Location: tenn
Posts: 17,247
Received 72 Likes on 71 Posts
Default

post the name of the shop in case anyone needs it?
Old 01-08-13, 01:11 PM
  #10  
Debonair
iModerate
 
Debonair's Avatar
 
Join Date: May 2007
Location: 408 NOR CAL
Posts: 3,397
Received 39 Likes on 27 Posts
Default

Cool stuff.
Old 01-08-13, 08:04 PM
  #11  
blacksedan
Lead Lap
iTrader: (4)
 
blacksedan's Avatar
 
Join Date: May 2006
Location: tx
Posts: 514
Likes: 0
Received 0 Likes on 0 Posts
Default

2 questions.

1. How much was it to rebuild the motor?

2. How did you remove the motor? Are just 3 screws holding it?
Old 01-09-13, 09:23 AM
  #12  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

I think I have some pictures of dissasemble but yes there is like four screw for motor to come off. There is a couple holding the bracket not shown and a couple holding the motor to the pump. Be careful not to lose the coupling that goes between the motor and the pump. I got it done for free or a couple hours of my time any way. Rainbow electric done it for me guys name is George. But I would look into a small motor repair shop because they primarily do big motors. If you do go tell him Martin sent you hell hook you up.
Old 01-09-13, 10:14 AM
  #13  
FrankT
Instructor
 
FrankT's Avatar
 
Join Date: Nov 2005
Location: Cedar Park, Texas
Posts: 996
Received 49 Likes on 42 Posts
Default

Great pictures.

What do you think caused the motor failure?
What was the scope of the repair?
Besides the bearing, were the brushes replaced? How about the slip rings, those appear to be worn some.

With high miles on both my GS's, I appreciate the info...
Old 01-09-13, 12:22 PM
  #14  
chitown18
Driver School Candidate
Thread Starter
 
chitown18's Avatar
 
Join Date: Jan 2013
Location: il
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default

To be honest IMHO I think there is a mistake in the material for the brushes they were not worn at all they ate the dam commutator. I dont think that should happen if anything all I should have needed was brushes I think my guy did a complete overhaul of the motor. I think the only thing really needed was the commutator but why mess around you are already in there may as well do it all if you can. I would say this may be something that should be looked into if you have high mileage since it really isn't all that hard IMHO. Especially since I seen there is alot of posts about troubles in this are with these models. It wont hurt just be carefull when opening up the motor if you do it yourself if you have the same wear on commutator well it may not come apart easy because your dug in with the brushes but it can come apart I did it relatively easy like I said but I been turning wrenches for 20 plus years first time on lexus though.
Old 02-07-13, 09:32 AM
  #15  
kevwats01
Driver
iTrader: (5)
 
kevwats01's Avatar
 
Join Date: Aug 2010
Location: ny
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Default

How much you to get mine fixed ill send it to you...


Quick Reply: DIY master cylinder repair



All times are GMT -7. The time now is 08:57 PM.