Brake feel question

Rocky · Post by **Rocky** » Wed Jul 04, 2012 5:40 pm

If you pump the brake with the engine off does the peddle firm up? and does it stay firm? ooo errr misses

JayJay · Post by **JayJay** » Thu Jul 05, 2012 9:23 am

Oh yeah, other than this the entire system works well. There is a little bit of play in the pedal though, i.e. once it's all pumped up you can press it in a (VERY) short distance, more like a tap, before it hits the firm bits (hur hur).

vtectom · Post by **vtectom** » Thu Jul 05, 2012 10:33 am

Had my Prelude 2 years & twice during normal town driving the brake pedal has suddenly
gone very long with hardly any stopping power

After a couple of pumps it's okay again.

Also after a track-day the pedal has a long travel, although I still have plenty of feel
whilst on-track. Initially I thought this was due to air in the system, but a couple of
days later the pedal always firms up again

I think it could be worn seals in the brake cylinder.

JayJay · Post by **JayJay** » Thu Jul 05, 2012 11:57 am

Could be your fluid on the track day heating up too much?

vtectom · Post by **vtectom** » Thu Jul 05, 2012 12:07 pm

/\ If it was that then there would be air in the system & it wouldn't firm up again.

Rocky · Post by **Rocky** » Sun Jul 08, 2012 10:49 am

vtectom wrote:/\ If it was that then there would be air in the system & it wouldn't firm up again.

The boiling point may have dropped enough that hard braking is causing it to boil, then while there's no breaking it cools turning back to fluid and you have brakes again.

Post by **vanzep** » Mon Jul 23, 2012 8:52 pm

just to update

I finally did a complete brake fluid change and bled the brakes properly - big thanks to Merlin for helping me do this and supplying some castrol response super 4 brake fluid. It seems to have the done the job

Post by **vanzep** » Tue Aug 14, 2012 3:05 pm

ffs pedal creep is back
after some freaking insane driving and hard braking its returned - also had a caliper seize on for a bit..

will need to fit the spare master cylinder and rebleed.

hows everyonel getting on with theirs?

Post by **vanzep** » Tue Aug 14, 2012 3:07 pm

mods who changed my post?
i had put "after some freaking insane driving" now its reading "after some freaking insane driving"

come on own up whos responsible

Post by **indigolemon** » Tue Aug 14, 2012 3:08 pm

Welcome to the land of the word filter

It's automatic.