knuckle47
Advanced Contributor
"Always something, as they say
"Always something, as they say. During a recent oil change, my brother informs me that the raw water intake connection on the port exchanger has a slight drip. It appears to be at the junction of the hose barb and the main outer tank. Last year I had to re-solder this union on both heat exchangers for the same problem. As if the weight of the hose from the manifolds is stressing the joint. Does any think that this may be an impending sign of the need to replace them since this happened last year or just fix the joint again and shut up about it...?
Internally they are clean and have been flawless in performance. I have reamed them with a plastic rod and replaced the end caps and gaskets. The bronze end caps are bullet proof and probably 1/8" thick but the "barb" extension that the raw water hose attaches to, just always seemed to be so thin. I can surely just drain them a solder it....what bugs me is that I did a darn good job last year when I repaired it and what is maybe 125 hours later ( 10 months of NJ seasonal use and non-use)it is dripping again...
Could it be due to galvanic corrosion? I mean...is plumbing solder like zinc and gets eaten up during the process? Just in case, I do watch ALL of the zincs on the boat and they do get changed about 3 times during the active season and the boat is on the hard from Nov to April... Al"
"Always something, as they say. During a recent oil change, my brother informs me that the raw water intake connection on the port exchanger has a slight drip. It appears to be at the junction of the hose barb and the main outer tank. Last year I had to re-solder this union on both heat exchangers for the same problem. As if the weight of the hose from the manifolds is stressing the joint. Does any think that this may be an impending sign of the need to replace them since this happened last year or just fix the joint again and shut up about it...?
Internally they are clean and have been flawless in performance. I have reamed them with a plastic rod and replaced the end caps and gaskets. The bronze end caps are bullet proof and probably 1/8" thick but the "barb" extension that the raw water hose attaches to, just always seemed to be so thin. I can surely just drain them a solder it....what bugs me is that I did a darn good job last year when I repaired it and what is maybe 125 hours later ( 10 months of NJ seasonal use and non-use)it is dripping again...
Could it be due to galvanic corrosion? I mean...is plumbing solder like zinc and gets eaten up during the process? Just in case, I do watch ALL of the zincs on the boat and they do get changed about 3 times during the active season and the boat is on the hard from Nov to April... Al"