Rats 26 Posted January 16 Share Posted January 16 Ran the engine- a Volvo D2-40 and got the overheat alarm so ended up daisychaining up the system, water pump good, heat exchanger slightly blocked now removed and cleaned but when I checked the exhaust elbow too it was half blocked with cruddy calsified carbon. Soaked it overnight in acetone but appears to have done sweet FA Ovlov want moonbeams for a replacement ($ 767.00) surprising no one here, but I'm thinking the elbow is really a flawed design and I'll be faced with another elbow a few years down the track. As most of you know the heat exchanger raw salt water enters the exhaust via an external jacket and swirls with the gases, there is a significant build up of crud for about 40mm below the water entry point but interestingly there is build up 40mm above (Uphill) the water entry point also which only leaves an 85mm horizontal run to the engine manifold I'm thinking I may replace with a fabbed stainless with the heat exchanger water entering just a little further down, anyone done this? I'm looking for feedback. Quote Link to post Share on other sites
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