Published: 22 Jan 2016
Boat Projects & Solutions
A series of FREE Mini Guides for boating projects that run through the basic steps for the practical boat owner. This Mini Guide concentrates on general inspection & maintenance of the most common Freeman Sea Cock, the engine water cooling inlet, and the break down of parts likely to be found.
The Sea Cock Cap prevents water entering the boat but allows access to the filter. Should water in the sea cock freeze the cap top may ‘bulge’ slightly or even crack. If the cap has bulged into a ‘dome’ or has signs of wear, it should be replaced.
Replace the Cork Washer in the cap regularly, this helps create a watertight seal when the sea cock cap is tightened.
Sea Cock Filters remove unwanted debris from the river water that is used in the engine cooling system. Cleaning regularly is essential and if worn or damaged, a new filter should be installed.
This should be capable of stopping water flow when required. Common wear points are the handle and the shaft. Once the Gate Valve fails to work consider replacing immediately.
Check that the hull Water Strainer is clear. Young Mussels can enter, grow & become stuck, blocking water flow. This is the first line of engine cooling water filtration so it is good practice to keep this clear.
Additional useful equipment for the Freeman Sea Cock.
