01-NOV-2010
Cause = Improper Orientation of Scoop Strainer
This owner was the lucky recipient of an engine hydrolock event while under sail. When he went to start the engine a cylinder was filled with water, and water is in-compressible.
"But RC it worked for 6 years with no issues."
Another way to look at that:
"You got lucky for 6 years."
Yes, a professional boatyard did this installation... Apparently no one informed them that when sailing with a "scoop strainer" water can be forced up and over the siphon break, into the water lift muffler and can eventually back fill a cylinder. Raw water pumps are not shut off valves and they do and can leak water by. Facing a scoop strainer forward is an incorrect installation for a sailboat. Heck directional scoop strainers should not even be used on sailboats..
31-OCT-2010
Cause = Boatyard
This owner pays the boat yard to bottom paint. He pays too much!!
"My engine is over heating and spits steam out the stern."
Gee I can't understand why....??? (bang head with mallet)
31-OCT-2010
Cause = Lack of Maintenace
This external strainer is removable and the owner fully admitted to never removing it, cleaning and painting it. Thru-Hull totally clogged.
31-OCT-2010
Cause = Lack of Maintenance
Again a boat yard paints this boat. Despite being a proper non-directional sailboat strainer they still need to be removed yearly, properly cleaned, painted and re-installed.
The preferable method would be to remove it entirely and go to an internal strainer..
31-OCT-2010
Another 1 Piece Strainer
1 - Lack of maintenance caused by the strainer internals being inaccessible due to the 1 piece design.
2 - Another improper scoop orientation on a sailboat. A hydrolock event is only a matter of time
31-OCT-2010
Owner Had Already Done a "Dive Cleaning"...
Engine still over heating...
31-OCT-2010
Muscles..
Muscles, poor maintenance and an incorrect scoop orientation for a sailboat.
31-OCT-2010
Engine Over Heating........ WTF???
Yep you guessed it "The boat yard does the bottom painting"....... While this is the correct strainer it is totally occluded by bottom paint.
31-OCT-2010
Cause = Muscles & Marine Growth
Correct type of strainer for a sailboat, but totally plugged due to inaccessible marine growth.
31-OCT-2010
A Well Designed External Strainer Opens...!
If you still insist on an external strainer there is only one good method. This Groco non-directional sailboat strainer opens and can be cleaned and maintained.
Face the hinge towards the bow so that when, not if, you drop the pin or ring when "diving" to clean it, the strainer door will not hang open and catch weeds when sailing or motoring and will instead tend to close.
31-OCT-2010
This Was Done by the Owner Himself.