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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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			 one Apex @ a time 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Culpeper VA 
				
				
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				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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			 ORD - Old Rotary Dude 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Pelham, AL 
				
				
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			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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		#3 | 
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			 RCC Addict 
			
			
			
			Join Date: Feb 2008 
				Location: VA 
				
				
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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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		#4 | 
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			 RCC Contributor 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Grand Rapids, Michigan 
				
				
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			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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		#5 | 
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			 RCC Addict 
			
			
			
			Join Date: Feb 2008 
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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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		#6 | 
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			 RCC Contributor 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Grand Rapids, Michigan 
				
				
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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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		#7 | 
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			 Rotary Fan in Training 
			
			
			
				
			
			Join Date: Mar 2008 
				Location: Orlando, Fl 
				
				
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			Yea mothers mag polish or eagle one. They leave a waxy coating that preserves the shine for a bit.
		 
		
		
		
		
		
		
			
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		#8 | 
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			 RCC Contributor 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Grand Rapids, Michigan 
				
				
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			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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		#9 | |
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			 Big Daddy 
			
			
			
				
			
			Join Date: Feb 2008 
				Location: Rhode Island 
				
				
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	Hell hath no fury like a rotor blown.  | 
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