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I've had issues on my OEM rotors in heavy rain (or horizontal rain on a windy day) where after a while, the brakes would feel like they were hydroplaning on the rotor and like NOT stop at all, I don't know if it was just water inside the pads that was outgassing as it heated up, or if it was literally water on the rotor/pad face that wasn't being driven off. If I held the brake down for a few seconds, it'd clear right up and work for the next few seconds, but maybe 30 seconds later the problem was back.
Anyone have this issue or something similar?
Posted by: Jim Henderson
I have had this problem with all my disc brake cars. This happens when you go thru deep water or drive a long time in rain without using the brakes.
When you first hit the brakes they feel like they are barely working and require more pressure. Like you said a short tap on the brakes every once in awhile seems to dry them out.
Seems a bit strange since every set of disc brakes I have seen always had some minor contact with the rotor so you would think they would be constantly drying out. But I guess if there is enough water, then you got NO brakes.
In my experience this seems to be the way things are on disc brake cars, at least the ones I have driven since 1980. Drum brakes are way more fun in the rain.
Jim Henderson
Posted by: mnmridg
The only vehicle I have not experianced this on is my Explorer, which I've installed cross drilled rotors on. I will install them on the LS also when it is due for it's first pad change. Alot of people recomend against cross drilled rotor saying they warp and/or crack, but not if you get a quality set. I would go with slotted/drilled if I was autocrossing/racing, but for general moderat to hard street use cross drilled is the way to go if for the wet braking alone.
Posted by: Barwick
I never had this on my RX-7 or my Civic. But the Civic had slotted rotors on it (no cross drilled rotors for me), and I think the RX-7 eventually got them too. Mabye, I dunno... I forget what was on it.
