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Registered
Join Date: Apr 2011
Location: Houston, TX
Posts: 563
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Brake feel after service
I just got my ‘84 3.2 back after gearbox refresh with synchros/sliders and clutch. Car is great except brakes, which feel a bit rubbery and are lacking enough power to lock the wheels no matter how much pressure I use. Tech didn’t touch brakes, and the rotors, pads, lines are all fairly new. The power before was pretty awesome and could easily lockup if I tried. Is there anything that might be keeping the pedal from full travel. My guy drove the car quite a bit but was really concentrating on the gearbox and a/c system, which is what he worked on.
The service took 2+ months so it hasn’t been driven until just a few days ago.. My Ferrari brakes would go a bit rubbery after a few months of non-use too. My shop is 1.5 hour drive otherwise my tech would have had a look. Any thoughts? |
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11-10-2020, 10:14 AM
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Join Date: Oct 2018
Posts: 1,023
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Check to ensure the vacuum lines were reconnected after what was presumably an engine out service.
A lack of vacuum assist will impact brake performance, though I wouldn't call the feel rubbery. The pedal is normally harder to press without assist. |
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11-10-2020, 10:50 AM
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Join Date: Apr 2011
Location: Houston, TX
Posts: 563
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Is that something a non-mechanic can check? Can you direct me to where to look?
Quote:
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11-10-2020, 01:21 PM
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Join Date: Oct 2018
Posts: 1,023
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Yes, you can absolutely check this yourself.
1) Visually inspect the vacuum hose connection in the engine bay. I could see this not being reconnected after removing the engine 2) Visually inspect the vacuum hose in the front trunk at the brake booster 3) Check to ensure vacuum is being pulled (air being sucked) at the brake booster by pulling the hose and running the engine This thread shows the location of the vacuum line in the engine bay. Where is vacuum port for brake booster on Carrera 3.2? You can to check to ensure it's securely connected and doesn't look cracked or obviously leaking. I would start in the engine bay. If all looks good, I would then check the small hose that connects from the body to the vacuum booster at the master cylinder in the front trunk. In the front truck, you can remove the hose from the check valve on the booster and see if it's drawing vacuum (sucking in air) with the engine running. If it is, there's some further testing to be done. This thread has a picture of the small line at the booster. Brake Booster Vacuum Line I would start there. |
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11-10-2020, 02:17 PM
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Flushing the brakes couldn't hurt. Might get lucky.
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1986 Bosch Icon Wipers coupe. |
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11-10-2020, 06:38 PM
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