I'm stumped on this one!
Went to take my son out sailing for fathers day only to have the engine not start. Did the usual check for all things needed for an engine to run and when I got to the spark plugs I noticed water in the pistons. Dumb me forgot to close the fresh water valve. Though I have cranked the engine many times for too long and never had water back up to the manifold, I learned my lesson this time.
So going back the next day with new spark plugs and a few other maintenance items I began trying to get the water out and get it running. Here is where I got stumped. With the water shut off, spark plugs out, and cranking the engine to get the water out of the manifold I finally gave it a shot. The engine still would not fire up. Repeated everything a few times just to still fail on firing it up. So I pulled the exhaust off to see water pouring out. While the exhaust was still disconnected I got the engine to fire up till I was certain all water had left the manifold. But when I reinstalled the exhaust the motor would not start. Again I removed the exhaust and got the motor running and by hand pushed the exhaust flange up against the engine, causing the engine to die.
Obviously I have a blockage. Removing the flex pipe from the stand pipe, which goes to an inline muffler and out the hull, I got the engine running and the fresh water back on. So the blockage must be down hill of the stand pipe. However once I took it all home I found absolutely nothing blocking the flex line or the muffler, save a half penny size chunk of carbon scale that came out of the muffler.
Any thoughts as to what could be going on here?
Went to take my son out sailing for fathers day only to have the engine not start. Did the usual check for all things needed for an engine to run and when I got to the spark plugs I noticed water in the pistons. Dumb me forgot to close the fresh water valve. Though I have cranked the engine many times for too long and never had water back up to the manifold, I learned my lesson this time.
So going back the next day with new spark plugs and a few other maintenance items I began trying to get the water out and get it running. Here is where I got stumped. With the water shut off, spark plugs out, and cranking the engine to get the water out of the manifold I finally gave it a shot. The engine still would not fire up. Repeated everything a few times just to still fail on firing it up. So I pulled the exhaust off to see water pouring out. While the exhaust was still disconnected I got the engine to fire up till I was certain all water had left the manifold. But when I reinstalled the exhaust the motor would not start. Again I removed the exhaust and got the motor running and by hand pushed the exhaust flange up against the engine, causing the engine to die.
Obviously I have a blockage. Removing the flex pipe from the stand pipe, which goes to an inline muffler and out the hull, I got the engine running and the fresh water back on. So the blockage must be down hill of the stand pipe. However once I took it all home I found absolutely nothing blocking the flex line or the muffler, save a half penny size chunk of carbon scale that came out of the muffler.
Any thoughts as to what could be going on here?
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