03-10-2020, 10:10 AM
			
			
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			#1
			
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				New AOS, Manometer reads  (- 0.47 )
			 
			 
			
		
		
		
			It was really all over the map,...from  -0.35   to  - 0.50   What does that mean,.. 
Plus I did a smoke test and it only leaked from air box,..( filter in  wrong,.. fixed ), I didnt see any more obvious smoke .  ?   Thanks  Frank
		 
		
		
		
		
		
		
		
		
			
				  
				
					
						Last edited by flmont; 03-10-2020 at 10:23 AM.
					
					
				
			
		
		
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			03-10-2020, 12:06 PM
			
			
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			#2
			
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			 1998 Boxster Silver/Red 
			
			
			
			
				 
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			Have you considered amending your existing thread so, you know, people can follow your results?  Thanks.   
		 
		
		
		
		
		
		
			
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				1998 Porsche Boxster
			 
		
		
		
		
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			03-10-2020, 12:56 PM
			
			
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			#3
			
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			 Who's askin'? 
			
			
			
				
			
			
				 
				Join Date: Mar 2018 
				Location: Utah 
				
				
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	Quote: 
	
	
		
			
				
					Originally Posted by  Starter986
					 
				 
				Have you considered amending your existing thread so, you know, people can follow your results?  Thanks.    
			
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I think he was hoping to get some new views.  I don't blame him.  :dance:
 
I'll go respond to that thread.
		  
		
		
		
		
		
		
		
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			03-10-2020, 03:18 PM
			
			
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			#4
			
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			 "50 Years of 550 Spyder" 
			
			
			
				
			
			
				 
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				Fyi:
			 
			 
			
		
		
		
			A mechanic that I trust on these machines told me that the manometer test is really useless.  
 
The AOS can fail without warning.  
 
The membrane is either good or it’s not.  
 
Just R&R it every four years.  
 
Cheers!
		 
		
		
		
		
		
		
			
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				550 SE #310---"It's more fun to drive a slow car fast, than a fast car slow."
			 
		
		
		
		
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			03-10-2020, 03:29 PM
			
			
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			#5
			
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	Quote: 
	
	
		
			
				
					Originally Posted by  10/10ths
					 
				 
				A mechanic that I trust on these machines told me that the manometer test is really useless.  
 
The AOS can fail without warning.  
 
The membrane is either good or it’s not.  
 
Just R&R it every four years.  
 
Cheers! 
			
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Strange, using this "useless test", we have correctly diagnosed and replaced many failing customer AOS units before they could fail catastrophically and potentially kill the engine...………...
		  
		
		
		
		
		
		
			
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				“Anything really new is invented only in one’s youth.  Later, one becomes more experienced, more famous – and more stupid.”  - Albert Einstein
			 
		
		
		
		
		
			
				  
				
					
						Last edited by JFP in PA; 03-10-2020 at 03:35 PM.
					
					
				
			
		
		
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			03-10-2020, 03:38 PM
			
			
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			#6
			
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	Quote: 
	
	
		
			
				
					Originally Posted by  flmont
					 
				 
				It was really all over the map,...from  -0.35   to  - 0.50   What does that mean,.. 
Plus I did a smoke test and it only leaked from air box,..( filter in  wrong,.. fixed ), I didnt see any more obvious smoke .  ?   Thanks  Frank 
			
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That is indication of a very low vacuum level, either due to a bad AOS, a low vacuum signal from the intake system, or a vacuum leak somewhere in the sump system.
 
I would test the vacuum level coming from the intake to the AOS, it should be very high.
		  
		
		
		
		
		
		
			
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				“Anything really new is invented only in one’s youth.  Later, one becomes more experienced, more famous – and more stupid.”  - Albert Einstein
			 
		
		
		
		
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			03-11-2020, 08:45 AM
			
			
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			#7
			
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			Thanks,.. JFP  and Maytag,....Yea Iam sorry about that Starter986,..I did post that response in my original post,but I really need this car on the road I havent driven it since the Holiday's and i NEED to drive it !!(( I love that car !)..and Iam kinda impatient and I know you should not start new threads on a currant topic,...I just thought a new thread would get some attention,..Sorry   Thanks,...Frank
		 
		
		
		
		
		
		
		
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			03-11-2020, 09:31 AM
			
			
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			#8
			
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			 1998 Boxster Silver/Red 
			
			
			
			
				 
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	Quote: 
	
	
		
			
				
					Originally Posted by  flmont
					 
				 
				Thanks,.. JFP  and Maytag,....Yea Iam sorry about that Starter986,..I did post that response in my original post,but I really need this car on the road I havent driven it since the Holiday's and i NEED to drive it !!(( I love that car !)..and Iam kinda impatient and I know you should not start new threads on a currant topic,...I just thought a new thread would get some attention,..Sorry   Thanks,...Frank 
			
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Hey, Frank. No apology necessary, really. I'm low man on the forum totem pole.  I soften up after 6A. Pacific.   
I hope you get the car on the road soon!  Best wishes!!   
		 
		
		
		
		
		
		
			
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			03-11-2020, 09:42 AM
			
			
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			#9
			
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			 Who's askin'? 
			
			
			
				
			
			
				 
				Join Date: Mar 2018 
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	Quote: 
	
	
		
			
				
					Originally Posted by  flmont
					 
				 
				Thanks,.. JFP  and Maytag,....Yea Iam sorry about that Starter986,..I did post that response in my original post,but I really need this car on the road I havent driven it since the Holiday's and i NEED to drive it !!(( I love that car !)..and Iam kinda impatient and I know you should not start new threads on a currant topic,...I just thought a new thread would get some attention,..Sorry   Thanks,...Frank 
			
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So where ya at then?  Were you able to get it sorted?
 
Sent from my SM-G970U using Tapatalk
		  
		
		
		
		
		
		
		
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			03-11-2020, 10:21 AM
			
			
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			#10
			
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			Another AOS  on the way..
		 
		
		
		
		
		
		
		
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			03-11-2020, 11:02 AM
			
			
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			#11
			
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			 Registered User 
			
			
			
			
				 
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	Quote: 
	
	
		
			
				
					Originally Posted by  flmont
					 
				 
				Another AOS  on the way.. 
			
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Who's are you buying?
		  
		
		
		
		
		
		
			
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