Home
1995 z32 TT
1992 z32 TT
Accent Stripe
AIV Delete
Antenna
Badgeless Rear Panel
Battery Optima Red Top
Big Brakes
Boost Gauge
Boost Sensor Hose
Boost Jets
Brake Idiot Light
Brake Master Cylinder
Butterfly Throttle Body
Carbon Canister Delete
Carpet Hole Repair
Center Console Removal
Classified ad
Clutch MC and Bleed
Cone Air Filter Placement
Connectors Under Hood
Delete & Bypass
Downpipes
Dyno Runs
Earthing Kit
Engine Pull
Exhaust
EGR Delete
Front Fascia
Fuel Line Clamps
Funky Fuses
Gear Shift Knob
Hatch Lock Stuck
Hella Horns
Hood Squeak
Idle Air Adjustment
Injector Dremel
Injector Testing
Interior Hatch Trim Repair
Jacking Car
Manual Boost Controller
Molding Replacement
Nose Panel
Parking Brake
Plenum Pull
PRVR Removal and Bypass
Pressure Wash
Radiator Hard Pipe Leak
Radiator Howe
Rear Interior Trim
Robo's Rules of Z-Dom
Seat Removal
Shock Install
Spare Tire
Speedometer 180 mph
Stereo Installation
Taillights JDM
Temperature Gauge
Throttle Sticking
Toluene
Vacuum Lines
When TT.net Goes Down
1987 z31 T
2004 Tacoma
2011 Tacoma
1974 Mercedes 450 SL
12 Hours of Sebring
24 Hours of Le Mans
AACA 2004 Hershey
Garage Remodel
Misc Album Pics
Misc Linked Pics
Numidia Raceway
SIR
Watkins Glen
Interesting Links
For Sale
Contact & Feedback
Disclaimer
 
 


We are currently creating content for this section. In order to be able to keep up with our high standards of service, we need a little more time. Please stop by again. Thank you for your interest and patience!

"Bench bleeding" gets the air out the brake master cylinder (BMC) before installing it.  The brakes have to be bled afterwards regardless, but the idea is to not introduce any extra air into the brake lines during the BMC install. 

Many auto parts stores will give you free brake bleed tubes and adapters, especially if you're buying a rebuilt master cylinder.  The tubes are easy enough to fab and worth the trouble.  Buy a few feet of some clear plastic 3/16" tubing from your neighbor home supply store.   You will need some sort of nipple adapters such that the tubing will temporarily fit and seal into the brake line attachment points on the brake master cylinder and curve back up and around into the mouth of the BMC reservoir.

For street use, the "Super Blue" brake fluid may be overkill, if there is such a thing as overkill when it comes to brakes.  I was getting ready to take my car to WGI.

                                                                   


By depressing the BMC piston with with a 3/8" drive socket extension, the brake fluid is drawn up into the clear tubes and back into the reservoir. 


This takes a little force and an extra pair of hands, or a bench vise.

Any air bubbles rise to the top of the reservoir and are released to the atmosphere.  This avoids introducing any extra air into the brake lines during reinstallation of the BMC. 


Done with the bench bleed.  There isn't any air in the clear plastic tubing and the BMC is full of fluid.  The socket extension is withdrawn. 


After the bench bleed, plastic plugs go where the tubing was attached.  This keeps the brake fluid from draining out during installation of the BMC. 


Also, put the BMC cap back on during installation, duh.  

Bleeding points for the ABS are located under the trim panel behind the passenger seat. Plastic tubing comes in handy here, too, unless you want brake fluid running down inside your car.   

 
 
Top