Maine Sail,
My project is part of upsizing the internal strainer from a plastic 3/4" Sherwood strainer to a Groco ARG 1000 (1") for an Yanmar 3GM raw water cooled engine (I think you recommended this Groco Strainer somewhere). With this, I was thinking I should up-size the Sea Cock to at least one inch, but it seems on your Winterizing video your engine Sea cock may be much larger - but then again you have a totally different engine.
I'd like to stick with Marelon since that is what I've had for over 30 years on my boat without any issues and trying not to add additional metals below the waterline if I can.
I was curious, if you have ever tested the MF 849 Marelon valve which is the one with the flange? (I have a MF 849 currently at 3/4" but that makes the Marelon Thru-hull at .660" ID)
Do you also recommend upsizing engine raw water intakes from 3/4" to 1" in the OEM 93 series or should I go larger? It should be noted that I have a Raritan 6 Gallon Hot Water Heater with 3/4" NPT without any diverter valve for heat exchanger water.
I do get a little bit of white steam exhaust when running at 2,800 RPMs.
Thanks for your help, testing and suggestions.
My project is part of upsizing the internal strainer from a plastic 3/4" Sherwood strainer to a Groco ARG 1000 (1") for an Yanmar 3GM raw water cooled engine (I think you recommended this Groco Strainer somewhere). With this, I was thinking I should up-size the Sea Cock to at least one inch, but it seems on your Winterizing video your engine Sea cock may be much larger - but then again you have a totally different engine.
I'd like to stick with Marelon since that is what I've had for over 30 years on my boat without any issues and trying not to add additional metals below the waterline if I can.
I was curious, if you have ever tested the MF 849 Marelon valve which is the one with the flange? (I have a MF 849 currently at 3/4" but that makes the Marelon Thru-hull at .660" ID)
Do you also recommend upsizing engine raw water intakes from 3/4" to 1" in the OEM 93 series or should I go larger? It should be noted that I have a Raritan 6 Gallon Hot Water Heater with 3/4" NPT without any diverter valve for heat exchanger water.
I do get a little bit of white steam exhaust when running at 2,800 RPMs.
Thanks for your help, testing and suggestions.
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