2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

is it safe to sand blast rotors???

Thread Tools
 
Search this Thread
 
Old 12-13-04, 10:55 PM
  #1  
It's finally reliable

Thread Starter
iTrader: (18)
 
MOBEONER's Avatar
 
Join Date: May 2004
Location: NEW YORK CITY
Posts: 3,511
Received 9 Likes on 7 Posts
is it safe to sand blast rotors???

is it safe to sand blast rotors???

my rotors are dirty as hell,but i am scared that sand blastinf might damage something...
Old 12-13-04, 10:58 PM
  #2  
I wish I was driving!

 
Join Date: Dec 2001
Location: BC, Canada
Posts: 5,241
Received 84 Likes on 68 Posts
Originally Posted by mobeoner
is it safe to sand blast rotors???

my rotors are dirty as hell,but i am scared that sand blastinf might damage something...
Engine rotors? No. Not even close.

Brake rotors? The centre hub would be fine to sandblast.

Again, no to the engine rotors.
Old 12-13-04, 10:58 PM
  #3  
casio isn't here.

 
casio's Avatar
 
Join Date: Sep 2002
Location: Greenpoint, Brooklyn
Posts: 3,332
Likes: 0
Received 0 Likes on 0 Posts
any speck of sand not removed is bad news as far as i know. buy some heavy duty cleaner and a metal brush. and some rubber gloves that go to your elbow; chemicals eat your skin. oh, and have fun!
Old 12-14-04, 05:51 PM
  #4  
Monkeys!

 
Bluetwo's Avatar
 
Join Date: Aug 2004
Location: Atlanta
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Yeah I thought you meant brake rotors too....

some people actually rough em up a little before they hit the track. At least that what that one guy said on Speed that one time.
Old 12-14-04, 07:40 PM
  #5  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes on 19 Posts
If I remember right, the FSM says:

1. Remove the carbon from the rotor with a carbon remover or emery paper. CAUTION (a), Do not use emery paper on the groove of the apex seal or side seal. (b) Take care not to damage the soft material coating on the side surfaces.
2. Remove the carbon in each groove.
3. Wash the rotor with a cleaning solution.

That's from the online FSM I just looked at.......online. Free. Cheap. Download two for the price of one.
Old 12-14-04, 09:51 PM
  #6  
Registered Abuser

 
Join Date: Jul 2003
Location: Upper Marlboro
Posts: 697
Likes: 0
Received 0 Likes on 0 Posts
Call me crazy if you must but all of the old head rotary guys I've spoken to usually submerge their rotors in gasoline overnight before cleaning. I've done it on one motor and it seemed to make cleaning a little easier but i've only done it once and i've only ever rebuilt 3 motors so i dont think its enough to swear by. Anyone have a legit reason not to do that they can support with proof or reasonable certainty?
Old 12-14-04, 09:55 PM
  #7  
I wish I was driving!

 
Join Date: Dec 2001
Location: BC, Canada
Posts: 5,241
Received 84 Likes on 68 Posts
Originally Posted by 13Beast REW
Call me crazy if you must but all of the old head rotary guys I've spoken to usually submerge their rotors in gasoline overnight before cleaning. I've done it on one motor and it seemed to make cleaning a little easier but i've only done it once and i've only ever rebuilt 3 motors so i dont think its enough to swear by. Anyone have a legit reason not to do that they can support with proof or reasonable certainty?
Sand blasting removes material that is required for tolerances at the side seals, corner seals, and apex seals. After sandblasting, there would be no way to get the seals to fit with spec.
Old 12-14-04, 10:08 PM
  #8  
Rotary Enthusiast

 
inflatablepets's Avatar
 
Join Date: Mar 2004
Location: St Louis
Posts: 1,473
Likes: 0
Received 0 Likes on 0 Posts
There will be a small abount of the blasting media left behind. It can come off and ruin the engine when you run it. The same is true for sandblasting spark plugs.
Old 12-15-04, 11:56 AM
  #9  
Eats, Sleeps, Dreams Rotary

iTrader: (1)
 
Snrub's Avatar
 
Join Date: Jun 2001
Location: London, Ontario, Canada
Posts: 3,106
Likes: 0
Received 0 Likes on 0 Posts
As for doing brake rotors, I sand blasting tends to leave things pitted and not a smooth, even surface. I'm certainly no expert on the process, but I'm not sure that would be a good idea.
Old 12-15-04, 01:22 PM
  #10  
Full Member

 
brakar's Avatar
 
Join Date: Nov 2004
Location: Carberry MB Canada
Posts: 97
Likes: 0
Received 0 Likes on 0 Posts
I used a dremle and a soft wire wheel to clean my rotors. You have to be very carefull around the seal seats thou. Work realy well thou, got all the carbon off.
Old 12-15-04, 02:38 PM
  #11  
Nothin But a G Thang

 
ajsuper7's Avatar
 
Join Date: Mar 2001
Location: Houston, Texas
Posts: 1,213
Likes: 0
Received 0 Likes on 0 Posts
dump them in castorl superclean...that should alteast loosen the carbon to come off easily with a little elbow grease. superclean did wonders to all the parts i needed to clean and its cheap.
Old 12-15-04, 03:14 PM
  #12  
Older than Dirt

 
Mr. Gadget's Avatar
 
Join Date: May 2003
Location: Parts Unknown
Posts: 1,448
Likes: 0
Received 0 Likes on 0 Posts
this is so easy I cant believe it.

Buy - one gallon of simple green
submurge a rotor for about three days
rinse off
oil to prevent rust
Old 12-15-04, 04:50 PM
  #13  
kill it with BOOMSTICK!

 
Falcoms's Avatar
 
Join Date: Mar 2004
Location: McHenry, IL
Posts: 1,227
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Mr. Gadget
this is so easy I cant believe it.

Buy - one gallon of simple green
submurge a rotor for about three days
rinse off
oil to prevent rust
I was hoping somebody would get to simple green soon...Great degreaser, and safe for the rotor and your hands
Old 12-15-04, 06:01 PM
  #14  
I wish I was driving!

 
Join Date: Dec 2001
Location: BC, Canada
Posts: 5,241
Received 84 Likes on 68 Posts
Safe for rotor, safe for hands.... not safe for rotor bearings. Neither is Castrol.
Old 12-15-04, 06:03 PM
  #15  
I wish I was driving!

 
Join Date: Dec 2001
Location: BC, Canada
Posts: 5,241
Received 84 Likes on 68 Posts
Originally Posted by Snrub
As for doing brake rotors, I sand blasting tends to leave things pitted and not a smooth, even surface. I'm certainly no expert on the process, but I'm not sure that would be a good idea.
No, not smooth. That's why I said to use it on the center hub, and not on the friction surface. You tape off the friction surface with lots of layers of tape.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Snook
Single Turbo RX-7's
39
10-04-15 08:47 PM
risingsunroof82
1st Generation Specific (1979-1985)
22
09-22-15 01:20 PM
tiger18
3rd Generation Specific (1993-2002)
9
09-03-15 08:27 PM



Quick Reply: is it safe to sand blast rotors???



All times are GMT -5. The time now is 10:17 PM.