RX7Club.com


Go Back   RX7Club.com > Generation Specific > 3rd Generation Specific (1993-2002)
Register Forgot Password?
Register Photos FAQ Members Search Today's Posts Mark Forums Read Vendor DirectoryUsed Cars Garage
Welcome to RX7Club.com

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread Display Modes
Old 01-18-08, 08:12 PM   #1
DRIVE THE ROTARY SPORTS
10 Year Member
 
RotorMotor's Avatar
 
Trader Score: (5)

Join Date: May 2003
Location: CA (Bay Area)
Posts: 4,148
Send a message via AIM to RotorMotor
Question best method to brighten our cast aluminum engine parts?

so ive been searching all over the place for a good way to bring back all of my under-the-hood cast aluminum parts to a factory look. im not asking how to polish them, i just want to get them back to their original factory finish. ive tried a few things (aluminum brightener, soap/water) but i cant seem to get the grime/oil out of the sand cast, and my intake piping, waterpump, UIM etc etc still looks very dull and aged. i was hoping to send it to an anodizing shop and have it chemically stripped, and then clear anodized, but the shop i called told me that their best guess was that the alloy that the parts were cast of would not take to anodizing, and would turn gray if they tried to anodize it. i suppose my last option would be sand blasting. if anyone has advice please let me know as i want to start reassembling my project car asap. thanks. heath
RotorMotor is offline   Reply With Quote
Old 01-18-08, 08:17 PM   #2
94 Single Turbo FD
5 Year Member
 
Smitter's Avatar
 
Trader Score: (0)

Join Date: May 2006
Location: Calgary, Alberta, Canada
Posts: 1,394
a nice bead blasting works well. use duct tape to mask all the faces and **** u dont want to hit. use multiple layers of it.......just like the pros
__________________
[sig pic][/sig pic]
Blood, Sweat & Tears....all over my Fd
Smitter is offline   Reply With Quote
Old 01-18-08, 08:24 PM   #3
Banned. I got OWNED!!!
 
GARCO MOTORWORKS's Avatar
 
Trader Score: (0)

Join Date: Jul 2004
Location: next to the polishing wheel!!!
Posts: 1,179
On one R & R ,I sand blasted all the cast alum with worn out sand .The color and finish all matched very well and with the clean plastic stock parts the engine bay looked as good as new, maybe better . The customer was very happy . I did remove alot of the casting seams that were easy to see before blasting . I did the alternator and air pump as well .
GARCO MOTORWORKS is offline   Reply With Quote
Old 01-19-08, 01:14 AM   #4
wants some ube
 
IamRobbyah's Avatar
 
Trader Score: (0)

Join Date: Feb 2005
Location: North Bay/Cali
Posts: 235
Send a message via AIM to IamRobbyah
I used simple green on various parts. When I did a write up a while back, ppl were surprised how clean the turbos looked. It's said to watch out for certain finishes (like paint), but I never had any problems. Good luck! Lets see that clean engine bay when ur done!
__________________
hibernation sucks!
IamRobbyah is offline   Reply With Quote
Old 01-19-08, 01:29 AM   #5
Looking to learn...
5 Year Member
 
Prometheus's Avatar
 
Trader Score: (2)

Join Date: Jan 2007
Location: Portland, Oregon/ Vancouver, Washington Area
Posts: 1,689
Quote:
Originally Posted by IamRobbyah View Post
I used simple green on various parts. When I did a write up a while back, ppl were surprised how clean the turbos looked. It's said to watch out for certain finishes (like paint), but I never had any problems. Good luck! Lets see that clean engine bay when ur done!
Simple Green will oxidize polished Aluminum surfaces.

just to let you know.
__________________
My Feedback Thread
Prometheus is offline   Reply With Quote
Old 01-19-08, 01:41 AM   #6
Derek
5 Year Member
 
DMoneyRX-7's Avatar
 
Trader Score: (2)

Join Date: Sep 2005
Location: Austin, Tx
Posts: 2,007
Send a message via AIM to DMoneyRX-7
here is what I did. Nice way to clean/ brighten the UIM
__________________
'93 FD3S R1 GT35R
Interior/Exterior/Audio MODERATOR
DMoneyRX-7 is offline   Reply With Quote
Old 01-19-08, 02:01 AM   #7
Torqueless Wonder
5 Year Member
 
cptpain's Avatar
 
Trader Score: (1)

Join Date: Oct 2004
Location: Killeen, Texas, U.S.A.
Posts: 2,013
bead blast it, paint and clear it.

or just leave it be after blasting. natural looks best
cptpain is offline   Reply With Quote
Old 01-19-08, 12:45 PM   #8
DRIVE THE ROTARY SPORTS
10 Year Member
 
RotorMotor's Avatar
 
Trader Score: (5)

Join Date: May 2003
Location: CA (Bay Area)
Posts: 4,148
Send a message via AIM to RotorMotor
Quote:
Originally Posted by IamRobbyah View Post
I used simple green on various parts. When I did a write up a while back, ppl were surprised how clean the turbos looked. It's said to watch out for certain finishes (like paint), but I never had any problems. Good luck! Lets see that clean engine bay when ur done!
yeah im somewhat worried about using simple green. ill try it with one of my spare parts. my engine bay is REALLY clean at the moment...

The Return of my 20b Project
RotorMotor is offline   Reply With Quote
Old 01-19-08, 01:25 PM   #9
No Life.
5 Year Member
 
apexFD's Avatar
 
Trader Score: (0)

Join Date: Oct 2006
Location: BC, Canada
Posts: 1,319
I am using castrol purple degreaser and a dish scrubber... works awesome, then i am painting all of the aluminum parts with 'aluminum look' high temp enamel. All of the iron peices will be black.


Its going to look awesome.



=Ben
apexFD is offline   Reply With Quote
Old 01-19-08, 02:38 PM   #10
All out Freak!
5 Year Member
 
Trader Score: (7)

Join Date: Feb 2007
Location: dayton,ohio
Posts: 2,401
i used afm cleaner it took of all the dirt and grime off and it evaporates quickly
__________________
turboIIrotary is offline   Reply With Quote
Old 01-19-08, 03:36 PM   #11
almost done
 
KINETIK_FD3S's Avatar
 
Trader Score: (0)

Join Date: Dec 2001
Location: 250 HZ
Posts: 1,049
using sand as blasting media will leave your parts with a dull gray look, what you want to use is glass bead...... glass leaves a shiny metallic finish.
__________________
KINETIK_FD3S is offline   Reply With Quote
Old 01-24-08, 12:09 AM   #12
DRIVE THE ROTARY SPORTS
10 Year Member
 
RotorMotor's Avatar
 
Trader Score: (5)

Join Date: May 2003
Location: CA (Bay Area)
Posts: 4,148
Send a message via AIM to RotorMotor
Quote:
Originally Posted by KINETIK_FD3S View Post
using sand as blasting media will leave your parts with a dull gray look, what you want to use is glass bead...... glass leaves a shiny metallic finish.
thanks i just bought a cheapo media blasting box on ebay and some glass bead media. ill post some pics when everything arrives and i have a..... blast. sorry i couldnt resist.
RotorMotor is offline   Reply With Quote
Old 01-24-08, 12:47 AM   #13
Banned. I got OWNED!!!
 
hypntyz7's Avatar
 
Trader Score: (0)

Join Date: Jul 2001
Location: usa
Posts: 3,052
Even bead leaves a flat/satin finish, it actually removes any shine inherent to cast aluminum. The best thing I have done is use greased lightning. Spray it on a warm engine, not hot, but not dead cold. Let it sit 5 minutes, spray more. Repeat several times depending on how dirty it is, don't let it dry completely.

Then start the engine and pressurewash it while it is running. Don't spray right into the alternator too much, expect a lot of steam but it won't hurt anything. Keep it running for about 10 minutes until most of the engine parts have dried.

You can always powdercoat any of the metal parts.
hypntyz7 is offline   Reply With Quote
Old 01-24-08, 09:00 AM   #14
10 yr DoO User
10 Year Member
 
ptrhahn's Avatar
 
Trader Score: (6)

Join Date: Feb 2002
Location: Arlington, VA
Posts: 7,551
I picked up a spray-on/rinse off alluminum cleaner at the auto parts store. Worked like a demon with a little scrubbing.
__________________
Peter 93: PFS Streetport w/ '99 turbos and all bolt-ons, 393 rwhp @16 psi, JRZ/Hyperco coilovers, StopTech BBK, Raceshop rollbar, Sparco EVOs, BBS RGR street wheels, Technomagnesio track wheels.
ptrhahn is offline   Reply With Quote
Old 01-24-08, 11:30 AM   #15
bow leggin'
10 Year Member
 
Scrub's Avatar
 
Trader Score: (17)

Join Date: Jul 2002
Location: Delaware
Posts: 6,029
Send a message via ICQ to Scrub Send a message via AIM to Scrub
Quote:
Originally Posted by ptrhahn View Post
I picked up a spray-on/rinse off alluminum cleaner at the auto parts store. Worked like a demon with a little scrubbing.
Do you know who makes it?
__________________
www.SakeBombGarage.com

R.I.P. Peppay Lopez, 2013. Mrowz4life
Scrub is offline   Reply With Quote
Old 01-24-08, 11:43 AM   #16
10 yr DoO User
10 Year Member
 
ptrhahn's Avatar
 
Trader Score: (6)

Join Date: Feb 2002
Location: Arlington, VA
Posts: 7,551
I'll have to look at it when I get home.


Quote:
Originally Posted by Scrub View Post
Do you know who makes it?
__________________
Peter 93: PFS Streetport w/ '99 turbos and all bolt-ons, 393 rwhp @16 psi, JRZ/Hyperco coilovers, StopTech BBK, Raceshop rollbar, Sparco EVOs, BBS RGR street wheels, Technomagnesio track wheels.
ptrhahn is offline   Reply With Quote
Old 01-24-08, 11:56 AM   #17
No useless mods....
5 Year Member
 
Speed of light's Avatar
 
Trader Score: (3)

Join Date: Oct 2004
Location: San Diego
Posts: 1,118
+1 for Super Clean. The key is not to leave it on for too long. Brush it in for a thorough cleaning action and wash it off immeadiately. Repeat for heavy deposits. This works good to get back to the factory look. Again, do not leave it in contact with aluminum for any period of time as it will react and dull the finish.

There are also phosphoric/sulfamic acid based products available that will do a really nice job of cleaning and brightening many metals, including aluminum; saftey precautions apply.
Speed of light is offline   Reply With Quote
Old 01-24-08, 12:30 PM   #18
Cheap Bastard
10 Year Member
 
adam c's Avatar
 
Trader Score: (2)

Join Date: Sep 2002
Location: San Luis Obispo, Ca
Posts: 7,706
I used some automotive hand cleaner on mine. I think it was "Fast Orange", or something like that. It worked pretty well.
__________________
94 White PEP
Cheap Bastard Intake (PM me for info)
Mild port / 99 J-spec turbos / M2 DP / RB dual CB / Efini y-pipe / Blitz SMIC
PFC / 1300's / Supra pump / ACT clutch / SR 9.5 flywheel / Fluidyne / Eibachs

Quote:
Originally Posted by Mahjik View Post
The only person to listen to is "adam c"...........
adam c is offline   Reply With Quote
Old 01-24-08, 12:47 PM   #19
R.I.P. Goofyrotor
5 Year Member
 
Trader Score: (3)

Join Date: Jun 2005
Location: East Bay, North Cali.
Posts: 1,470
carb or brake cleaner from any autoparts store works as well. just have to try not to get it on plastic parts. they do eat away a layer of plastic and weakens it overtime.
RX7LINK is offline   Reply With Quote
Old 01-24-08, 01:09 PM   #20
Banned. I got OWNED!!!
 
hypntyz7's Avatar
 
Trader Score: (0)

Join Date: Jul 2001
Location: usa
Posts: 3,052
Something else you can consider, if you want to keep a stock non-flashy look but cut down on maintenance in the future. you can have the metal parts blasted and then clear powdercoat over that. It'd look either satin or glossy depending on what clearcoat was used, but would retain the stock bare aluminum color while outlasting clear paint.

OF course, this is just as much work as powdercoating in color/metallic, so I don't see many people doing it that way.
hypntyz7 is offline   Reply With Quote
Old 01-24-08, 11:46 PM   #21
almost done
 
KINETIK_FD3S's Avatar
 
Trader Score: (0)

Join Date: Dec 2001
Location: 250 HZ
Posts: 1,049
Quote:
Originally Posted by hypntyz7 View Post
Even bead leaves a flat/satin finish, it actually removes any shine inherent to cast aluminum.
what i said was from personal experience , clear powder coat over cleaned cast aluminum will also result in a gray/paint primer look but glossy and clear spray paint will turn yellow and peel with time.

RotorMotor - make sure you put down a tarp or something similar so you can reclaim your glass media because it will go through the machine really fast...

here is a picture of a rotor housing i blasted with glass media i took the picture today but the housing was blasted 7 months ago and its still looks good.

Click the image to open in full size.
Attached Thumbnails
best method to brighten our cast aluminum engine parts?-100_3347.jpg  
KINETIK_FD3S is offline   Reply With Quote
Old 01-25-08, 12:20 AM   #22
Banned. I got OWNED!!!
 
hypntyz7's Avatar
 
Trader Score: (0)

Join Date: Jul 2001
Location: usa
Posts: 3,052
That's odd, you must use a very fine medium. I use tptools "speed bead" which cleans VERY well and VERY fast. Here are some pics of parts I blasted last week, all bare aluminum. You can see the satin/rough finish it leaves, which is in no way shiny and will actually stain easier than when it was new cast aluminum.

Click the image to open in full size.

Click the image to open in full size.
hypntyz7 is offline   Reply With Quote
Old 01-25-08, 08:19 AM   #23
almost done
 
KINETIK_FD3S's Avatar
 
Trader Score: (0)

Join Date: Dec 2001
Location: 250 HZ
Posts: 1,049
the glass i used for the rotor housing was 80 grit, i get that same finish (like yours) when i use sand.... stains like paper but works better for powder coating.

try glass you won't be disappointed.
KINETIK_FD3S is offline   Reply With Quote
Old 01-25-08, 12:14 PM   #24
Banned. I got OWNED!!!
 
hypntyz7's Avatar
 
Trader Score: (0)

Join Date: Jul 2001
Location: usa
Posts: 3,052
I DO USE GLASS, NOT SAND

Above are pictures of glass beaded parts. Here is the product I use.

http://cgi.ebay.com/ebaymotors/Speed...6349QQtcZphoto

Compare strip times for standard glass bead versus speed bead.

Click the image to open in full size.
hypntyz7 is offline   Reply With Quote
Old 01-25-08, 05:17 PM   #25
almost done
 
KINETIK_FD3S's Avatar
 
Trader Score: (0)

Join Date: Dec 2001
Location: 250 HZ
Posts: 1,049
Quote:
Originally Posted by hypntyz7 View Post
I DO USE GLASS, NOT SAND
easy guy... you misread my post because i never said *you* use glass or sand, what i said was.....

A. *i* use 80 grit glass.

B. *i* get the same finish (like yours) when *i* use sand.
KINETIK_FD3S is offline   Reply With Quote
Old 01-25-08, 05:17 PM
RX7Club
Mazda RX7




Paid Advertisement


 
 
 
Reply

Tags
alluminum, aluminium, aluminum, bead, blasting, car, cast, clean, cleaner, engine, gray, luis, obispo, oxisolve, parts, san, turning

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Kouki/S5 cast aluminum thermostat housing - interested? RETed 2nd Generation Specific (1986-1992) 61 05-28-09 12:50 AM


All times are GMT -5. The time now is 01:16 PM.
All content Copyright 2007 by Internet Brands, Inc.

Contacts