How to Repair a Heat Exchanger /Insulate an Exhaust Riser:Yanmar Engine-Patrick Childress Sailing 44

Patrick Childress Sailing demonstrates how to Repair, Rebuild, Replace our Yanmar 4JH3E marine Heat Exchanger & exhaust Riser on our cruising sailboat. Also, how to insulate the new marine exhaust riser on our Yanmar 4JH3 Diesel engine. the old insulation was asbestos, but this new exhaust wrap is not.

In this sailboat repair video, sailor Patrick Childress removes the old heat exchanger and the marine exhaust riser and brings it to a heat exchanger shop recommended to us called Empengani Progress, close to Richards Bay South Africa. They say they can rebuild the Heat Exchanger to like new condition. A new marine heat exchanger from Yanmar would cost $3000-$4000. Yanni Enterprises in Zululand Yacht Club boat yard made us a new exhaust riser out of 316 and 304 Stainless steel. It wasn’t cheap, but it was very well made and needed very little coercion to fit it back on to the heat exchanger of our Yanmar 4JH3E Diesel engine.

Empengani Progress shows how to take apart the heat exchanger. They then cleaned it all out, welded and rebuilt deteriorated parts of the Corroded cap on the heat exchanger, reusing the core, and then put it all back together again,pressure tested it, and then charged us a very reasonable rate too! Much cheaper than a new heat exchanger! it is always difficult to decide whether to replace or repair a heat exchanger.
Once the new exhaust riser was fabricated, Patrick reinstalls it. Because Patrick had removed all of the asbestos insulation on the old marine riser, we had to find a new material to insulate the new exhaust riser, and find out how to insulate a marine riser.
There were many Yanmar spare parts that we needed for this rebuild, and we fell back on our old source in the USA, Toad Marine Supply (aka MarineDieselDirect.com, LaserSailingDirect.com, SunfishDirect.com, BoatDollyDirect.com, and Torresen Marine Inc). They are always responsive to emails, and double check everything with part diagrams to be sure we are all talking about the same engine part. They ship Yanmar, Westerbeke, Universal and Volvo Penta Diesel engine spare parts all over the world, as well as other marine supplies, very quickly and very correctly.

Their website is http://toadmarinesupply.com/
Their email address is customerservice@toadmarinesupply.com

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Видео How to Repair a Heat Exchanger /Insulate an Exhaust Riser:Yanmar Engine-Patrick Childress Sailing 44 канала Sailing Brick House - Rebecca & Patrick Childress