F FIMAN1 Active member Joined Jul 9, 2019 Messages 43 Fluid Motion Model C-24 C SE Jul 31, 2019 #1 I am looking at a R21 EC Does it have a closed cooling system or does it pull through the intake?
C Capt’nKarl Well-known member Joined Feb 22, 2013 Messages 624 Fluid Motion Model C-242 C Hull Identification Number FMLT2330I718 Non-Fluid Motion Model Previous R-21EC Vessel Name DRAGONFLY Jul 31, 2019 #2 The Yanmar 3YM30 diesel actually has both systems. A closed water system and a raw water system that receives sea water through a thru-hull to cool the closed system through a heat exchanger.
The Yanmar 3YM30 diesel actually has both systems. A closed water system and a raw water system that receives sea water through a thru-hull to cool the closed system through a heat exchanger.
