Ray,
I removed my heat exchanger Friday afternoon and removed the end this afternoon. Mine looks exactly like yours. Found my missing impellor vanes, didn’t look like any went through the heat exchanger tubes. It looks good to me but I will have someone with more mechanics skills to look at it tomorrow or Monday. It looks to me that the hoses and heat exchanger are original with the boat, about 25 years. Don’t think either have been removed. I got all the hoses off except for the one that connects to the manifold. I’ll tackle it tomorrow with a dremel tool. All the engine hoses have wire reinforcing. Thanks for the pictures, John Emmerich C27TR #5874 Louisville, KY From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Saturday, May 22, 2010 5:16 PM To: [email protected] Subject: Fwd: [IC27A] Heat Exchanger John, As requested, attached is a pic of my 2010 Heat Exchanger that just arrived. Obviously, the 85 model has seen better days. Take Care, Ray Setauket, New York -----Original Message----- From: [email protected] To: [email protected] Sent: Sat, May 22, 2010 9:04 am Subject: Re: [IC27A] Heat Exchanger David, I paid $220.00 for it, actually less than half what I would have paid Torresen, for probably the same exact unit. I think they list an exchanger for $470.00. Sen-dure built the original that was in my boat and the Sen-Dure rep. that I spoke to said, that the new one is identical to the original. I'm expecting it any day and will send you pics as soon as I get it. Ray Maldonado Setauket, NY -----Original Message----- From: David Savlin <[email protected]> To: [email protected] Sent: Fri, May 21, 2010 10:57 pm Subject: Re: [IC27A] Heat Exchanger Ray -- how much was the new heat exchanger? And do you, by chance, have any photos? I have been growing concerned about my heat exchanger since we've never serviced it in the 8 or 9 years we've owned our '88. David On Fri, May 21, 2010 at 9:12 PM, <[email protected]> wrote: John, I just recently pulled my heat exchanger to replace the zinc, hoses and clamps. When I removed the outside plate I found fins from an old impeller that were there who knows how long and who knows how old. On the exchanger was a stamp with the manufacturer's name..."Sen-Dure", Bay Shore, NY. After a little internet searching I found Sen-Dure was still in business and still making exchangers for many different applications including and above all marine engines. Long story short, a gentleman by the name of "Dave" was able to tell me the exact date that my heat exchanger was made. They had mine (and probably yours too) in stock for almost half the price that Marine Diesel/Torresen was asking. Given the condition of my 25 yr. old exchanger and the cost of a new one, replacing it was a no brainer. I would strongly recommend Sen-Dure.com if you're considering a replacement, which it sounds like you are. They were extremely helpful, knowledgeable and courteous...and oh yeah, the price was right too. Good luck. Ray Maldonado C27 TR 6036 Setauket, NY -----Original Message----- From: The Emmerichs <[email protected]> To: [email protected] Sent: Fri, May 21, 2010 7:07 pm Subject: [IC27A] Heat Exchanger At the end of last season, I lost 4 or 5 vanes from my sea water pump impellor. I discovered this when I tried to run antifreeze thru the pump, heat exchanger and associated hoses and nothing came out the exhaust. I opened the water pump and found vanes were missing. One was blocking the discharge and when I removed it there was a more or less normal flow out the stern. I have received different advice. A diesel engine mechanic told me you have to find the vanes. Others have said if there is good flow out the exhaust, don’t worry about it. I’ve decided that if I was going to 18 mile island or Madison, IN, I would be worrying about it. I don’t want to be 12 or 35 miles from home port and have an engine that is overheating. I pulled the heat exchanger this afternoon, took about 2 hours. The biggest difficulty was getting the hoses loose which have been on the boat for 25 years. I have not opened it yet so I don’t know what I will find inside. Anyway, I’m committed, the 25 year old hoses probably needed to be changed anyway. I think I remember some traffic on the list several or more years ago that the heat exchanger size was increased in later boats. Mine is a ’85, the heat exchanger is 2 1/16 inches in diameter. I have checked CD and they do not have heat exchangers on their web site. Any thoughts on this? Does anyone know of a larger heat exchanger? My engine has been running at 175 degrees which is within the range in the engine manual although near the upper end. John Emmerich C27 TR 5874 Louisville, KY
