I own a 1990 30' with the Yanmar 2GM fresh water cooled engine. We pick up eel grass frequently which often restricts seawater inflow and causes the engine to overheat. The system has a 5/8" supply hose and a sea strainer. Anyone encountered and resolved this problem?
Raw Water Blockage/Engine Overheat
- Thread starter Carpe Diem12966
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Yup
Same thing happened to me. I installed a "clamshell" slotted strainer on the hull. There is a Perko strainer(standard install) already and haven't had a problem for 3 years. I have an '88 Legend 37 w/3 cyl Yanmar on mine.
Same thing happened to me. I installed a "clamshell" slotted strainer on the hull. There is a Perko strainer(standard install) already and haven't had a problem for 3 years. I have an '88 Legend 37 w/3 cyl Yanmar on mine.
Clamshell facing aft
This same topic comes up from time to time and the subject of which way to face a sea-water clamshell strainer goes around and around. I installed an aft facing clamshell strainer on both of the boats I have sailed over the past 15 years. I sail mostly in the Barnegat Bay region of New Jersey and there is a significant amount of eel grass. Before the installation, I had a real problem with the eel grass and engine overheating. Since then, I have not had one incidence of eel grass clogging the engine or strainer. At the end of each season, with maybe 150 hrs of engine use, I rarely find one or two pieces of eel grass in the engine raw water filter. I do try to steer around the large floating islands of grass when I see them.
This same topic comes up from time to time and the subject of which way to face a sea-water clamshell strainer goes around and around. I installed an aft facing clamshell strainer on both of the boats I have sailed over the past 15 years. I sail mostly in the Barnegat Bay region of New Jersey and there is a significant amount of eel grass. Before the installation, I had a real problem with the eel grass and engine overheating. Since then, I have not had one incidence of eel grass clogging the engine or strainer. At the end of each season, with maybe 150 hrs of engine use, I rarely find one or two pieces of eel grass in the engine raw water filter. I do try to steer around the large floating islands of grass when I see them.
Yep, me too.
In 1986 when our H34 was new we would get sea-weed all the way to the raw water pump. The Perko strainer didn't work. After repeated over-heats I chose one of those colander style external strainers. Haven't sucked in anything in 18 years. The Perko is landfill.
In 1986 when our H34 was new we would get sea-weed all the way to the raw water pump. The Perko strainer didn't work. After repeated over-heats I chose one of those colander style external strainers. Haven't sucked in anything in 18 years. The Perko is landfill.
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