pcolt94

With all the bias springs being installed and some of the stories of parts flying I have read I have decided to document this information so as to help others. I decided to do a test run on my spare master to figure out how I was going to do and what tools were going to work best when my spring arrived.

Hear is how I did it;
- Follow DRM instructions. This is additional info to get the spring in the valve
- Remove master from car and end nut that holds valve in and small tapered spring.
- Strike master on end to remove valve from master, (use wood). Remove O-ring and metal spacer.
- Record all configurations of parts removed.
- Take a 19mm deep socket and place in vice vertically.
- Wrap the valve in a paper towel to protect it and slip into socket so C clip is up.
- Take snap ring pliers and remove C-clip and spring.
- Drop new spring in valve.
- Get a straight blade screwdriver wide enough to depress spring into valve.
- Place C-clip thru screwdriver and grab clip with snap ring pliers and place screwdriver onto spring.
- Press spring with screwdriver down into cylinder, lower C-clip with pliers and snap in.

If you mess up, you wont loose the C clip. Getting it in the first time is easy.

- lube piston valve and re-assemble master in proper order.
- Bench bleed master and install back in car.
- Bleed master at fittings and or system.

Best of luck

(New pictures, deleted photobucket)

Spring in valve and valve in socket.



Ready to push spring into valve



Spring pressed in valve and ready to drop C-clip in.

pcolt94

Thought I would add a follow up on the performance of the spring installation. I did not know what to expect or even if I could tell the difference.

The spring definitely works and does make a difference. The brakes are not as grabby as they were in the front. The car does stay more level when braking and does not dive as it did. I still can lock up the fronts and activate the ABS (with my J55s), but just requires a little more pedal pressure.

It took a day or so to get use to the new feel, but the car stops great now like it should. Driving is much more pleasurable now not having to worry about the panic stop and adding the extra stopping distance.

Aardwolf

Thanks for the write up! I'm going to put one of those in before next years racing season.

gaspeddleZ07

Searching the forum took a couple of pages and 20 minutes of opening the links, butfound this from 2006 and it answered by question!

Wanted to pass along how great the resources are on the forum!

Thanks!

rfn026

It made a difference on my car at the track. I'm not sure it's worth the effort for a street car though.

It's a bear to do. Thanks for the detailed instructions.

Richard Newton
C4 Adjustable Sway Bar

JrRifleCoach

aboatguy

What's wrong with following DRM's instructions? FWIW DRM has never steered me wrong. Their Brake Bias Spring, Brake lines, suspension parts and brackets, etc have made my C4 driving experience more pleasurable.


Mike

gaspeddleZ07

some of us need pictures!

H P Bushrod

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