Creeping brake pedal

I have a 2001 Opel Combo 1.7 diesel van with a creeping brake pedal. I have done some repairs to the brakes – I’ve replaced the wheel cylinders and brake pipes on the rear of the van and have changed the front brake pads – and I have tried bleeding the system, but can’t get a firm pedal.

I asked an Opel mechanic of 30 years and he told me that the master cylinder had gone due to the repairs I had done having turned the seals. Trying to get a replacement master cylinder proved difficult as it is a two-port non-abs design. The main dealer price is €427+VAT, but I managed to get one for €180. My Opel mechanic told me to gravitybleed and seals in the cylinder into a section the system and not press the brake of the bore that has not been worn. pedal or I'd ruin the new master cylinder. I The seals can be ruined by this action, pressure-bled the system as well and have causing the master cylinder to fail.

no leaks. What would you advise and is When fitting a new master cylinder, there anywhere cheaper for brake parts? you should not encounter such The van has covered 200,000 miles and problems as the complete bore will be it's not worth spending large amounts on it. smooth and even. Nevertheless, caution Paraic Clooney is always advisable. You should allow the fluid to find its way through the system After years of use and with the with the help of gravity, before then piston only travelling a short bleeding the system gently using just distance in the master cylinder, the top half of the pedal. This should what normally occurs when work has ensure you have no further problems.

been carried out on the brake system I have also sent you a link to a site is that there is a tendency to bleed the where you can purchase parts at a more brakes by pumping the brake pedal from reasonable cost, even allowing for the top to bottom. This pushes the piston shipping costs to Ireland.