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Old 11-27-2008, 09:55 AM
Pater Pater is offline
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Bad design

Since the majority of the problem seems to be at start (or non start) and difficulty of getting to the seacock to shut off (starve the pump) the raw water to keep from filling the exhaust with water and having it flow back into the manifold into the engine and then when the engine starts reach over the running engine to re-open the seacock in time to not burn up the impeller, it seems to me that rather than shutting the raw source flow off, installing a diverter valve in the line from the exhaust manifold to the injection point that could shunt the flow overboard until the engine starts running and then return the flow to "normal" allowing water into the exhaust would solve two problems. A simple cable actuator (like a choke cable and bell crank) with the pull mounted adjacent to the choke pull, for would fix one issue (access) and the diverter would solve the water backing up in the exhaust problem without creating the dry pump risk.
Does this sound reasonable to you ?

Last edited by Pater; 11-29-2008 at 09:51 PM. Reason: to make the question clearer
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