Is a spongey pedal common/normal in CE Lancers?
Five years ago my daughter was given a damaged and poorly-maintained Lancer CE coupe. I repaired, serviced and registered it and she's been using it since. In all that time I have been unhappy with the brakes, although they were usable and apparently good enough to pass a roadworthy test for rego.
I would dearly love to improve their performance.
Relevant service history and observations:
1. Rear brake linings 3mm...well within limits (1mm by my Gregory's manual). Adjusted as closely as possible.
2. Cylinders not leaking, not seized.
3. New front pads, pistons operating normally.
4. Fresh brake fluid, gravity-bled.
5. Booster getting good vacuum.
1. Engine off... good pedal height.
2. Start engine, holding pedal... pedal drops virtually to floor.
3. Engine idling, pump pedal... no improvement in pedal height.
4. While mobile, braking is even and reasonably effective, but spongey and very low pedal, and bottom out with firm application. I wouldn't trust them in an emergency stop. There's little in reserve.
My question to all you CE owners is "is this a common or even normal characteristic, or am I looking at a brake booster problem?"
Hoping there are still a few CEs running around out there.