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			 Registered Member 
			
			
		
			
			
			Join Date: Apr 2001 
				Location: Bowling Green, KY 
				
				
					Posts: 95
				 
				
				
				
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			 For about the last month or two, I have been having a pretty bad vibration whenever the rpm's get above 3k. I never could figure out what was causing it until this yesterday when I was checking the spark plugs and I felt one of the header primaries sitting on part of the motor mount.  
		
	
		
		
		
		
		
		
		
		
		
	
	  My question is, how difficult is it to change them? I assume I will have to put a jack on the oil pan, but how should I go about this? I just want to make sure I don't f*** anything up.  | 
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		#2 | 
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			 Junior Member 
			
			
		
			
				
			
			
			Join Date: Mar 1999 
				Location: Ventura, California 
				
				
					Posts: 8,981
				 
				
				
				
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			 If you do use a jack under the oil pan, make sure there is a thick (3/4" or more) piece of plywood between the jack and the pan. You want the piece of wood to be as large as the surface of the pan, to help evenly distribute the load. 
		
	
		
		
		
		
		
		
			Take care, -Chris 
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	Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local 
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		#3 | 
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			 Registered Member 
			
			
		
			
			
			Join Date: Nov 2000 
				Location: Milwaukee,Wisconsin 
				
				
					Posts: 380
				 
				
				
				
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			 All you should need are jacks, jackstands, a piece of wood as described by PKRWUD, and a 1/2" wratchet, sockets (shallow and deep well), and PB Blaster or WD 40. It's not really a big job 
		
	
		
		
		
		
		
		
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	'91 LX convertible , T-5, Centerforce Dual Friction, MSD Blaster Coil, FR 9MM wires, 13* timing, 1.6rr, ported/polished/milled stock heads, 1.94/1.60 stainless valves, March Performance Pulleys, K&N panel, 1"spacer, BBK shorties, 2 1/2" off road H, Summit 2 1/2" catback  | 
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