308 master brake cylinder, help

Hi Peter

Welcome to Fchat.

You might also post this question in the 308 section - there's a much better chance of getting an answer there.

M

 

This happened to me once, many years ago, and not with a ferrari, but it was simply that the brake pedal wasn't releasing far enough to allow the fluid to release back to where ever it's meant to, in other words, the piston wasn't coming back far enough to pass the hole in the cylinder that allows the fluid to lose the pressure.

hope that makes sense...the words aren't very technical! lol

 

You are 100% correct PP (again).

This problem is usually fixed by simply adjusting the pedal height, which is easily done by loosening a locknut at the top of the pedal assembly. It's all obvious if you stick your head into the footwell and look up.

 

My first thoughts also as I have seen it many times before in the past.

Normally from old, gunked up brake master cylinders, but in this case from an "over adjusted" brake pedal.

There ya go, possibly someone (who didn't know what they were doing) adjusted it with the old brake master cylinder in place and now you have a new master cylinder you may have to re-adjust it.

It will be trial and error from here, but if you can see where the 'clean' threads are on the shaft, try and wind it back to there as that was the original position it would have been in Peter.

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Take care and let us know how you go with your brakes.