Brake Failure on my 240 - Page 3

zbig · Nov 8th, 2010, 03:47

Hi Sanj

I am wonder if the breaks worked fine ever after? I have the same problem on my 240 recently.

Hope you are fine and still own and enjoy 240!
zbig

Clifford Pope · Nov 9th, 2010, 08:28

It is quite common for the internal seals in the master cylinder to fail, causing fluid to bypass between the two chambers but with no visible leak anywhere. Usually this happens during unrelated work on the brakes resulting in the system needing to be bled. Anything that causes the pedal to travel further than it does in normal use can run the seals over a section of bore that has surface rust from lack of use. This damages the seal, resulting in either gradually or sudden loss of efficiency and the pedal sinking to the floor.
The more you pump, the worse it gets.

Nov 8th, 2010, 03:47	#21
zbig New Member Last Online: Nov 8th, 2010 04:09 Join Date: Nov 2010 Location: toronto	breaks failure Volvo240 Hi Sanj I am wonder if the breaks worked fine ever after? I have the same problem on my 240 recently. Hope you are fine and still own and enjoy 240! zbig

Nov 9th, 2010, 08:28	#22
Clifford Pope Not an expert but ... Last Online: Yesterday 15:31 Join Date: Dec 2001 Location: Boncath	It is quite common for the internal seals in the master cylinder to fail, causing fluid to bypass between the two chambers but with no visible leak anywhere. Usually this happens during unrelated work on the brakes resulting in the system needing to be bled. Anything that causes the pedal to travel further than it does in normal use can run the seals over a section of bore that has surface rust from lack of use. This damages the seal, resulting in either gradually or sudden loss of efficiency and the pedal sinking to the floor. The more you pump, the worse it gets.

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