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View Full Version : S5 Rotors I cleaned up, opinions?

Max777
04-09-2009, 04:15 PM
So I have a set of S5 N/A "c" weight rotors for sale, and just recieved some interest from a few people. I realised I didn't really have good pictures of the items, so I decided to clean them up.

These rotors came out of a 140,000 motor that had a coolant seal failure, they look pretty damn good, but I am worried about the pitting on the front rotor. Here are some pics:

This is the Rear rotor, awesome shape:

http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora01.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora02.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora03.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora04.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora05.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora06.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora07.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotora08.jpg



This is the front, a bit of pitting on it, how bad is this?

http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotorb02.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotorb03.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotorb04.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotorb05.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/rotorb06.jpg


PS: This is what they looked like before I cleaned them both properly. The cleaner rotor is the rear, i cleaned it a bit already at this point. The dirty rotor is the one with the pitting.

http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/dirtyrotors01.jpg
http://i151.photobucket.com/albums/s123/Alpine61/S5%20Rotors/dirtyrotors02.jpg
Flooder
04-09-2009, 06:41 PM
Wooooooooow.
DJMOJO
04-09-2009, 07:47 PM
wow nice work, that looks damn close to a brand new rotor!:icon_tup:
Max777
04-09-2009, 07:52 PM
thanks! Once again, these are for sale, $250 shipped to your doorstep.
SecondGenPat
04-09-2009, 08:23 PM
what did you use to clean them with?
DJMOJO
04-09-2009, 08:35 PM
250 a pair? or 250 a piece?
Whizbang
04-09-2009, 08:49 PM
what did you use to clean them with?

+1
vex
04-09-2009, 08:58 PM
looks like a wire wheel.

The pitting is caused by rust it looks like. Honestly I don't think that pitting will pose any problems with operation of the engine, but it may be a location for carbon deposits to sit.
SecondGenPat
04-09-2009, 09:35 PM
looks like a wire wheel.

ouch-kabibbles, I hope not. (don't see any marks that I would expect a wire wheel to leave)
Max777
04-09-2009, 09:55 PM
This was a hi quality wire wheel mounted to a bench grinder. When you say "i hope not" what do you mean? I used the exact same methods that are shown in the Pineapple Racing engine bebuild video.

Here's the video for cleaning rotors:

http://video.google.com/videoplay?docid=4230836472454255155

Now, I I dont know what you mean by "I hope not" but this is how you clean a rotor. Please try to refrain from posting misleading information, pat.

The price is $250 for a PAIR SHIPPED TO YOUR RESIDENCE.
12arotary
04-09-2009, 10:11 PM
all I use are wire wheels haha not like a rotor is made out of sponge haha
Max777
04-09-2009, 10:18 PM
Exactly! The rotors are pretty damn tough metal, and considering that the faces do not really touch anything, it would not matter anyway.

PS: I sprayed these with some WD40, wrapped in plastic, and boxed up.
vex
04-09-2009, 10:29 PM
This was a hi quality wire wheel mounted to a bench grinder. When you say "i hope not" what do you mean? I used the exact same methods that are shown in the Pineapple Racing engine bebuild video.

Here's the video for cleaning rotors:

http://video.google.com/videoplay?docid=4230836472454255155

Now, I I dont know what you mean by "I hope not" but this is how you clean a rotor. Please try to refrain from posting misleading information, pat.

The price is $250 for a PAIR SHIPPED TO YOUR RESIDENCE.
Wirewheeling rotors has become the norm with a lot of engine builders. However there's some who do not do it. I didn't do it, but that's just me. I did it by hand and used a brass bristle brush and small splints of wood to break the carbon off. It worked well and kept the coating on the rotor without issue. I don't think the coating is anything super special with the rotors so it is probably asinine for me to have done that, but that's just me.
Max777
04-09-2009, 10:31 PM
I was actually going to suggest sending these out to get coated to the guy who was interested in buying them. (He's building a 20B)
vex
04-09-2009, 10:37 PM
I was actually going to suggest sending these out to get coated to the guy who was interested in buying them. (He's building a 20B)

just for clarification, the coating you're talking about is different than the coating to which I was referring in my previous post.
SecondGenPat
04-09-2009, 10:56 PM
Hey Max,
I'm not trying to mislead anyone (especially myself!) It just seems to me with my personal experience with wire wheels that it would be far to easy to ruin a high tolerance part like the rotor.
I am still in the process of learning this engine so please bear with me.
-Pat
Rogrx7
04-09-2009, 11:15 PM
the rotor face its self doesn't touch the housings or the side plates.
Whizbang
04-09-2009, 11:18 PM
the tolerancing is in the seals.
12arotary
04-10-2009, 12:16 AM
and a wire wheel doesn't do anything to remove metal that is going to make the space any different for any of the seals, I wire wheel cleaned the rotors that are in my 85 and its still working just fine (18kmiles more)
SecondGenPat
04-10-2009, 07:59 PM
mkay, I see what you are saying.
-Pat
Max777
04-14-2009, 01:46 AM
Okay guys, I sold the better rotor to a forum member.

I took more pics of the other rotor and am awaiting evaluation from a more eperienced engine builder to give feedback on how usable the pitted rotor is.

Will post pics tomorrow.
Boostmaniac
04-16-2009, 05:14 AM
The pitted rotor is useable as long as the seal clearances are in spec. The actual pits my lead to faster carbon build up over time which could be detrimental to a race engine, or you could have it coated to remove most or all of the pitting. That way you would have a good awesome rotor. Your call.

P.S. if it is going in a daily driver then I wouldn't even really worry about it.