Brake Rotors turn rust brown after washing my Porsche
#46
Race Director
Now hold on a minute. You really though that tire shine has enough stickiness to keep the car from moving?
#47
Rennlist Member
Join Date: Dec 2009
Location: Southern California
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I wouldn't say I thought about it beyond noticing the correlation between that symptom and the immediately preceding detail job. I thought about it for the first time when I read that note from someone else about their car refusing to move after washing. Can't honestly say I've seen this happen with any other car. Must be related to the new OEM pads, the post asbestos compounds that is.
Gary
#49
#50
Drifting
Then why did so many Rennlist Members respond with good answers? I guess after 6400 posts you have no tolerance for new Porsche owners trying to be educated about Porsche care. It wasn't a back up question. It was how to keep the rotors clean right after washing the wheels, being that the iron rotors turn to rust so quickly. The blower was a good answer. I benefitted from it as I did from Dan's more technical answer.
Virtually every car I have owned with disc brakes show surface rust on the rotors after they get wet or even if they sit for a while (especially in humid areas)....unless you are a teenager most people would assume that you would have seen this at some point in your car owning experience.
On another note, if you are a teenager or whatever and you want to take some photos, etc after you wash, simply drive the car down the block and drag the brakes. All will be gone!
Last edited by SARGEPUG; 05-22-2011 at 04:37 PM.
#51
Addict
Rennlist Member
Rennlist Member
rusty rotors
here's my 2c: i always take my car ('96 993 - 156k) for a brisk 5 minute drive around a couple of cul de sacs in my neighborhood, alternating the direction i take around to make sure any excess water in the nooks and crannies gets forced out. this also does the job of clearing the rotors and i've never had a problem of rust or sticking.
marc
marc
#52
I use a Toro Super Blower, has metal impeller, less than $80. Don't use a gas blower, for reasons cited above. The same for an air compressor, they use oil for piston lube, will get on your car. I can dry my car in less than 5 minutes. Another reason to use a blower, every time you rub your cars paint, there is a chance for grit, sand, etc. to turn your chamois/towels into a piece of sandpaper. My car is black (my favorite mistake), every scratch, nick shows up. The blower does a good job at getting the water from wheels, lights, mirrors, etc.
Years ago, my buddies had a posse of M.G. Midgets, we would rebuild the engine(s) on the kitchen table, put the block in their Mom's dishwasher. As soon as you opened the door, you could see the flash rust form literally before your eyes. So, out came the WD-40, would shoot the cylinders, stop any rust.
Their Mom was a pretty patient person...
Years ago, my buddies had a posse of M.G. Midgets, we would rebuild the engine(s) on the kitchen table, put the block in their Mom's dishwasher. As soon as you opened the door, you could see the flash rust form literally before your eyes. So, out came the WD-40, would shoot the cylinders, stop any rust.
Their Mom was a pretty patient person...
#54
Poseur
Rennlist Member
Rennlist Member
You're clearly washing it with the wrong solution. If you do a Google search for a special "dry water" solution you can avoid what is wetting your car during a "wash." It comes in different avoirdupois weight sizes.
#55
i take the wheels off the car whenever i give it a wash and cover the brakes with shower caps i've collected from staying at fancy hotels. wheels get their own separate wash.
#56
Instructor
#57
(It should just wipe off)
#58
Race Director
If you had PCCB's like Edgy you wouldn't have this personal issue. But you'd have other issues when it comes time to buy new PCCB rotors!
#59
Here is another fantastic use for WD40. Did you know WD stand for water displacer? Spray the rotors down with a nice coat of the stuff to avoid rusting. I find that my rotos last longer and don't squeak as additional benefits.
#60
There is an easier solution to getting rid of unsightly rust on your rotors. Forget about fancy shower caps or waterless washes. What you have to do is remove them. They're unsprung weight, so your car will be faster. And you never have to worry about rust or brake dust or leaf blowers again.