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| RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections | 
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|  03-22-2008, 10:50 PM | #1 | 
| one Apex @ a time Join Date: Feb 2008 Location: Culpeper VA 
					Posts: 272
				Rep Power: 18  | 
				
				cleaning engine bay
			 
			
			any one have tips on cleaning the manifolds? I have some light oxidation on the gsl-se and wanted to clean it up a bit for the car show at DGRR !!! I will post up some pictures later on today.
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|  03-23-2008, 12:17 AM | #2 | 
| ORD - Old Rotary Dude Join Date: Feb 2008 Location: Pelham, AL 
					Posts: 319
				Rep Power: 18  | 
			
			Kinda depends on what types of tools you have. If you don't have a bunch to choose from, a cordless drill with a wire brush on the end will clean it up nicely. Probably want to use a brass brush since it is a softer metal. Don't forget the safety glasses as shards of the brush will come flying off. If you have a compressor and an angle grinder, I'd suggest a mandrel with a 3m scotch brite pad. This would make quick work of it. Hope that helps. | 
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|  03-23-2008, 08:19 PM | #3 | 
| RCC Addict Join Date: Feb 2008 Location: VA 
					Posts: 1,812
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			I know you probably want to leave the manifold on - for a quickie job, try the aluminum polish they sell in the small cans at autozone -  Rub hard until it turns black and then wipe the black residue clean... | 
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|  04-08-2008, 07:08 PM | #4 | 
| RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan 
					Posts: 530
				Rep Power: 18  | 
			
			I just picked up a couple of small wire brushes for the dremel for $3 each.  Doing everything that is aluminum on the engine.  The brushes cut right through it and shine it up almost like chrome in a matter of seconds.  Nothing to it...
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|  04-09-2008, 09:31 AM | #5 | 
| RCC Addict Join Date: Feb 2008 Location: VA 
					Posts: 1,812
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			^ But it'll oxidize really quick if you do that, just an FYI - I did that years ago. I used to polish a lot of parts by hand and its hard to keep them looking good. Sanding with a dremel and 100 grit paper and then again with 600-800 makes a nice surface, than hit it with some jewelers polish and you're set. We ended up just powdercoating most parts though since it lasts longer w/ less maintenance. I'll have to do a write-up at some point w/ pics from my previous parts. | 
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|  04-09-2008, 08:44 PM | #6 | 
| RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan 
					Posts: 530
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			I wonder if there's a way to preserve the finish once its been polished?  I thought about a good coat of wax, but figured it would just cook off.  Is there a type of clearcoat that would withstand the temps, and be able to bond directly to metal?  Gotta be some way to keep the bling dammit!    
				__________________ "Learn from the past, or it will become your future...." '85 GS 12a + LSD/Sterling carb/Respeed coilovers/Respeed front swaybar/Respeed adj. rear spring perches/Illuminas/Bilsteins on rear AutoX vids @ http://www.youtube.com/user/Kentetsu1 | 
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|  04-11-2008, 08:21 PM | #7 | 
| Rotary Fan in Training Join Date: Mar 2008 Location: Orlando, Fl 
					Posts: 59
				Rep Power: 18  | 
			
			Yea mothers mag polish or eagle one. They leave a waxy coating that preserves the shine for a bit.
		 
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|  04-12-2008, 03:22 PM | #8 | 
| RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan 
					Posts: 530
				Rep Power: 18  | 
			
			Thanks for the tip Carl, I'll give that a shot and see if it helps.  After polishing, the aluminum does develop a dark/dull color after only a day or so.   I'm installing a 2nd gen water pump housing this weekend. I was amazed at the weight difference! That 1st gen housing weighs a ton! I also got a new 1st gen water pump, which looks like it will fit on the new housing, and it is also aluminum (which is cool, and a lot lighter than the original). | 
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|  04-13-2008, 01:53 PM | #9 | |
| Big Daddy Join Date: Feb 2008 Location: Rhode Island 
					Posts: 419
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 http://www.por15.com/ 
				__________________ Hell hath no fury like a rotor blown. | |
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