[C38] Exhaust system check valve

[Steve Smolinske]

my thoughts exactly Max

________________________________

From: listserve-bounces at catalina38.org
[mailto:listserve-bounces at catalina38.org] On Behalf Of Max Soto
Sent: Tuesday, March 02, 2010 6:50 AM
To: tdtron at earthlink.net; Catalina 38 Listserve
Subject: Re: [C38] Exhaust system check valve


Exhaust Check valve??? Is this a Yanmar only set up??
Were is this located??  
Regards,

Max

2010/3/2 Tom T. <tdtron at earthlink.net>


	Hi Phil,
	 
	Is your new check valve hung level in a "normally closed"
position with the hinge at the top requiring the exhaust to open it?
	 
	Tom Troncalli
	 
	 

		----- Original Message ----- 
		From: Phil Gay <mailto:eyriepg at comcast.net>  
		To: Catalina 38 Listserve
<mailto:listserve at catalina38.org> 
		Sent: 3/1/2010 11:46:21 PM 
		Subject: [C38] Exhaust system check valve

		

		Dear List,

		 

		I finally finished my exhaust system upgrade on my
Yanmar 3GM30 from 1 5/8" to 2."  I replaced the check valve downstream
from the water lift muffler.  The flapper in the old valve was lying at
the bottom of the valve unattached to anything.  I like the more relaxed
sound of my exhaust now.

		 

		However, the new 2" check valve clanks when the engine
is running.  I suspect that the bronze flapper is banging against the
upper surface of the check valve rather than the surface that it closes
against.  I suppose that I could put a drop of sealant on the downside
surface of the flapper to deaden the noise.  Has anyone else encounter
this annoying clanking?  How did you solve it?

		 

		Phil Gay

		C38 049 Que Linda

		Everett, WA


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-- 
Max Soto
C38 #198 ESTANCIA
Puntarenas, Costa Rica


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