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Additional filter in raw water intake for the engine before the heat exchanger
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Joerg Esdorn
It has been a surprise to me how much seaweed and other dirt accumulates in the heat exchanger for the gear box even though there is a strainer at the intake point. Amel recommends that the heat exchanger be cleaned out yearly and it‘s definitely necessary. I checked the manual for my Volvo D3-110 engine and it says the following on page 104:
„Volvo Penta recommends that a seawater filter be fit- ted to guarantee the correct cooling water flow to the engine and reverse gear. Otherwise there is a risk of contaminants in the seawater blocking the reverse gear cooler and other cooling system components.“ I read this to suggest that there should be a second filter in the engine intake line after the main intake strainer and before the heat exchanger. I wonder why Amel isn‘t doing that and if anyone has done so. Cleaning out the heat exchanger is a difficult task, cleaning out a second filter would be a simple thing to do on a regular basis. Joerg Esdorn Amel 55 #53 Kincsem Vigo, Spain
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Randall Walker
Joerg, Good point. There should be two flushing attachment points on the engine, one just after the water pump and one before the exhaust so you can run a flush, with a barnacle slash calcium cleaning solution there are many brands. I recently rigged up a system to do just this. It should be standard on all ocean boats. Randall A54#56 Gibraltar
It has been a surprise to me how much seaweed and other dirt accumulates in the heat exchanger for the gear box even though there is a strainer at the intake point. Amel recommends that the heat exchanger be cleaned out yearly and it‘s definitely necessary. I checked the manual for my Volvo D3-110 engine and it says the following on page 104:
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