I used a new gasket and o-Ring from Toad. Marine. I did have a new thought about the problem overnight. For some reason that I can no longer remember, I put teflon tape on the threads of the end cap bolts. Was that a mistake and the teflon tape is keeping the bolts from tightening? Dave
On May 19, 2015, at 6:26 AM, Jake Brodersen <captain_j...@cox.net> wrote: > 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:cnc-list-boun...@cnc-list.com] 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 > > <image001.png> > Aries 1990 C&C 34+ New London, CT
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