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Old 24-06-23, 04:44 PM
Stefan Stefan is offline
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Join Date: Nov 2010
Posts: 114
Default 400 disc conversion.

I did this years ago with a complete 406 front end.

Pretty straightforward, but it can be difficult to bleed the brakes, and I think that’s because my servo is on the left side of the car under the Bonnet with a long pipe run to the master culinder. My 403 had a factory fitted servo+ discs, and that was in a pod on the right side under the Bonnet. It also had a vacuum tank, not needed nowadays. I had SLJ fit a reduction valve to stop the rear brakes over braking.
After years of ownership I found my 403 had different sized rear cylinders. Could explain a 180* spin on heavy braking during a high speed run early one morning.
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