Dave,
Is the gasket new? I doubt that a used gasket would seal in this situation. It has been crushed under heat and pressure. It probably has taken a set that keeps it from sealing properly. Jake Jake Brodersen "Midnight Mistress" C&C 35 Mk-III Hampton VA From: CnC-List [mailto:[email protected]] On Behalf Of David Knecht via CnC-List Sent: Monday, May 18, 2015 10:06 PM To: CnC CnC discussion list Cc: David Knecht Subject: Stus-List Heat exchanger problem I hope someone can help with this problem. I removed my heat exchanger from my Universal M4-30 last winter and had it cleaned out and a radiator shop and then I repainted it. As far as I can tell, the guy who did it did not pressure test it because it came back disassembled. I did not think much of it at the time. When I reassembled the end plates, it did not feel like the end caps were secured against the housing, but I assumed the gasket would do its job since I tightened the bolts as much as possible. Aries splashed today and when I started up the engine, water was spraying out of the end cap on one side an dripping from the other. The bolt is as tight as I can get it, but it still seems to not be putting enough pressure on the caps to seal. I was a bit confused about the assembly process. The order I thought was correct was the plate with the O ring on the bolt and the gasket over that. The plate has a slight recess that I thought was for the O ring, but it seems like the O ring might be preventing the plate from making good contact with the gasket. The way I assembled it looks like the picture on the Pbase site which is the only photo I can find (http://www.pbase.com/mainecruising/heat_exchanger). Any words of wisdom out there? Thanks- Dave Aries 1990 C&C 34+ New London, CT
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