2003 MR2 Roadster
								
							
						
						
	
						
							
	
						
					
					
						
	
					
				
				How strong is the 172 ph2 engine and gearbox?
 
The reason I ask is that I rarely rev it over 4500rpm. I have heard that there is a green light for changing gear - whats that about?
 
If I drove my 172 (mine has 29k on the clock) up to 5500rpm in each gear all the time would it knacker the engine/gearbox?
			
			The reason I ask is that I rarely rev it over 4500rpm. I have heard that there is a green light for changing gear - whats that about?
If I drove my 172 (mine has 29k on the clock) up to 5500rpm in each gear all the time would it knacker the engine/gearbox?
 
	             
						
					 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		