Wilwood Tandem Master Cylinder (TM1) - Manual (Page 2)

Bleeding Instructions:
Master cylinder should be bled while mounted to the brake pedal assembly. Pedal must allow full travel (stroke) of master cylinder
pistons for complete bleeding. Connect all brake lines after the master cylinder is installed, but prior to bleeding. Review the
following steps:
• Connect pair of short hoses from bench bleeding kit to each
master cylinder outlet port and place each free end of hose
inside reservoir(s).
• Wilwood Hi-Temp° 570 Racing Brake Fluid, or EXP 600 Plus
for extreme performance conditions (or alternate high
temperature DOT 3, DOT 4 or DOT 5.1 brake fluid) is highly
recommended for race cars and high performance vehicles
where brake temperatures exceed normal operating
conditions. NOTE: Silicone DOT 5 brake fluid is NOT
recommended for racing or performance driving.
• Fill reservoir(s) with brake fluid.
• Gently depress brake pedal.
• Gently release brake pedal.
• Repeat the above steps until fluid from master cylinder is free
of air and bubbles have subsided.
• Repeat steps after topping off reservoir.
• To properly bleed the brake system, begin with the caliper
farthest from the master cylinder. Bleed the outboard bleed
screw first, then the inboard. Repeat the procedure until all
calipers in the system are bled, ending with the caliper
closest to the master cylinder. NOTE: When using a new
master cylinder, it is important to bench bleed the master
cylinder first.
• Test the brake pedal. It should be firm, not spongy and stop
at least 1 inch from the floor under heavy load.
If the brake pedal is spongy, bleed the system again.
If the brake pedal is initially firm, but then sinks to the
floor, check the system for fluid leaks. Correct the leaks
(if applicable) and then bleed the system again.
If the brake pedal goes to the floor and continued bleeding of the system does not correct the problem, a master cylinder with
increased capacity (larger bore diameter) may be required.
Maintenance:
Master cylinders should be rebuilt, or replaced periodically. Inspect master cylinders regularly for damage or leakage. When
rebuilding master cylinders, take care not to damage piston seals. Test master cylinder before usage. Use Wilwood Hi-Temp° 570
brake fluid as a lubricant when assembling.
Wilwood Disc Brakes • Camarillo, CA 93012 Phone 805 / 388-1188 • www.wilwood.com
E-mail Technical Assistance: [email protected]
REMOTE MOUNTING BRACKET
(250-3381)
O-RING (210-3397)
REMOTE HOSE (220-10444)
MASTER CYLINDER SHOWN FOR REFERENCE
CLAMP ASSEMBLY (260-10263)
CLAMP (260-5556)
RESERVOIR CAP (330-7641)
7 OZ RESERVOIR
(260-10204)
MIN
MAX
Figure 1. Reservoir Remote Setup (2 Required)