Re: Car moving faster on applying light brake Quote:
Originally Posted by Joe-Ker This happend recently to me on an M800.
It was an old car 10+years 130000km. non booster carb 800.
First time the brakes bit after some time. Then the frequency increased until it lost all brakes unless pumped vigorously.
I did not feel the car speeding up but definitely felt that the car was freely moving forward instead of retarding as one would expect.
Culprit: Master cylinder
The car was idle for reasonably long periods intermittently and the SA said it dries up the rings causing improper sealing between the piston and the master cylinder. No idea if its true.
But if the frequency of occurrence is increasing, do get the master cyl replaced.
I can still remember when the brakes failed completely on a 4 lane highway (right next to my destination fortunately). |
Over time rubber gets hard and in extreme cases can crumble. Hence it is a good practice to replace the brake fluid and all the rubber components in the brake circuit every 50-70K km or 5-6 years. That ensures that the rubber is supple and the fluid devoid of any contamination - water, dust which can accumulate over time.
If the vehicle is not run much, say 3k/year, it is a good practice to change the brake disks/linings every 5 years, preferably when changing the rubber parts. |