11-06-2009, 06:02 PM
Well up till about a six weeks ago I was un-familar with the term but now have quite a few $$ into learning the meaning of "Hydro-Locked" .
Here are the symptoms: First as you shut-off your boats I/O motor and it diesels and then (without hearing) it backfires before it dies... Then on the restart the motor won't turn over. You believe the starter is messed up so you head for the boat launch. You take out your starter and have it checked -- it fine. You try to turn the motor over again and it's frozen solid. Then you start pulling the spark plugs and on the last plug water comes poring out. You might think - blown head gasket, cracked head, cracked intake manifold, or cracked block. Wrong...!!!
When here's what happened ... The backfire has sucked water from the exhaust manifold into one or more cylinders - In my case on my V6 it sucked water into 3 cylinders - one on one side and two on the other side.
Since I was up in Oregon I wasn't going to let this event ruin my once a year salmon fishing trip - so I fished the remaining days with my kicker - not as good as having the main motor but luckily the wind and weather cooperated and we fished.
My fix turned out to be a total engine rebuild from water damage.
Here's what I should have done.....
1) First pull all my spark plugs and disconnected the coil.
2) Then turned over motor until all the water is purged from the cylinders.
3) Then re-insert the spark plugs and start the motor.
4) Run until your motor is running smoothly
5) Check oil drip stick see if water got into the oil and change oil if necessary.
6) Turn Down the idle screw setting until the motor barely runs and stops immediately when the key turns off.
Lesson learned and maybe this will help someone in the future. Luckily I have a friend with a machine shop and my costs were about 1/2 for a total rebuild because I rebuilt the motor myself minus the cost of gaskets, bearings, valves, pistons, rings, and machining.
I re-fire this weekend and hopefully will get in a couple trips before the hardwater hits.
BOAT = Break Out Another Thousand..... [:/]
[signature]
Here are the symptoms: First as you shut-off your boats I/O motor and it diesels and then (without hearing) it backfires before it dies... Then on the restart the motor won't turn over. You believe the starter is messed up so you head for the boat launch. You take out your starter and have it checked -- it fine. You try to turn the motor over again and it's frozen solid. Then you start pulling the spark plugs and on the last plug water comes poring out. You might think - blown head gasket, cracked head, cracked intake manifold, or cracked block. Wrong...!!!
When here's what happened ... The backfire has sucked water from the exhaust manifold into one or more cylinders - In my case on my V6 it sucked water into 3 cylinders - one on one side and two on the other side.
Since I was up in Oregon I wasn't going to let this event ruin my once a year salmon fishing trip - so I fished the remaining days with my kicker - not as good as having the main motor but luckily the wind and weather cooperated and we fished.
My fix turned out to be a total engine rebuild from water damage.
Here's what I should have done.....
1) First pull all my spark plugs and disconnected the coil.
2) Then turned over motor until all the water is purged from the cylinders.
3) Then re-insert the spark plugs and start the motor.
4) Run until your motor is running smoothly
5) Check oil drip stick see if water got into the oil and change oil if necessary.
6) Turn Down the idle screw setting until the motor barely runs and stops immediately when the key turns off.
Lesson learned and maybe this will help someone in the future. Luckily I have a friend with a machine shop and my costs were about 1/2 for a total rebuild because I rebuilt the motor myself minus the cost of gaskets, bearings, valves, pistons, rings, and machining.
I re-fire this weekend and hopefully will get in a couple trips before the hardwater hits.
BOAT = Break Out Another Thousand..... [:/]
[signature]