New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Seized Brake Master Cylinder

Thread Tools
 
Search this Thread
 
Old 12-31-17, 07:40 PM
  #1  
Can Post Only in New Member Section
Thread Starter
 
LethalLeigh's Avatar
 
Join Date: Dec 2017
Location: NSW
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Seized Brake Master Cylinder

The secondary piston in my 1979 series 1 brake master cylinder is seized
Does any one have a suggestion how to free it
It is stuck fully in
Old 01-01-18, 11:34 AM
  #2  
Out In the Barn


iTrader: (9)
 
KansasCityREPU's Avatar
 
Join Date: Mar 2005
Location: KC
Posts: 6,047
Received 1,013 Likes on 799 Posts
Other then a rebuild/hone, a new one is the best choice.
Old 01-01-18, 11:48 AM
  #3  
JDM Junkie
iTrader: (5)
 
FEED AFFLUX v5's Avatar
 
Join Date: Jun 2017
Location: Alberta, Canada
Posts: 915
Received 196 Likes on 149 Posts
I second buying a new unit......brakes are too important. I would be going through the whole system personally
Old 01-09-18, 08:16 PM
  #4  
Junior Member
 
Peyta's Avatar
 
Join Date: Jan 2018
Location: Vancouver, BC
Posts: 15
Received 0 Likes on 0 Posts
Best to replace.

If you're stuck repairing, you could try to blow it out by making an adapter to hook your compressor up to the outlet, or by drilling the seized piece with a long drill bit and screwing a long wood screw in to the hole and pulling out.

Best to replace though.

Last edited by Peyta; 01-09-18 at 08:18 PM. Reason: Typo
Old 01-09-18, 09:14 PM
  #5  
JDM Junkie
iTrader: (5)
 
FEED AFFLUX v5's Avatar
 
Join Date: Jun 2017
Location: Alberta, Canada
Posts: 915
Received 196 Likes on 149 Posts
Seriously.....$49 - $79.....why go through the headache of doing anything else?

1979 MAZDA RX-7 1.1L R2 Master Cylinder | RockAuto

Or better question...why wouldn't you replace faulty 30+ year old brake parts?
Old 01-10-18, 10:59 AM
  #6  
Can Post Only in New Member Section
 
Kozer85's Avatar
 
Join Date: Nov 2015
Location: Staten Island
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Replace it. Rockauto is cheapest prob
Old 01-19-18, 09:05 PM
  #7  
Junior Member
iTrader: (1)
 
spitefulcheerio's Avatar
 
Join Date: Jan 2018
Location: Florida
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Can soak it in brake fluid on a bench to try and get it free.......but seriously you should just replace it!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
simronrx7
3rd Generation Specific (1993-2002)
10
06-28-14 09:50 PM
LAN
Suspension/Wheels/Tires/Brakes
10
10-08-10 04:36 PM
LAN
2nd Generation Specific (1986-1992)
14
11-05-08 05:16 AM
macinslaw
Suspension/Wheels/Tires/Brakes
3
04-11-06 09:46 AM
hondahater
2nd Generation Specific (1986-1992)
9
07-30-03 11:32 PM



Quick Reply: Seized Brake Master Cylinder



All times are GMT -5. The time now is 09:56 PM.