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#1
posted to rec.boats
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Elecrolysis Think My pistons got eaten, Is this possible?
I have a a pair of 2006 Honda 225 with dual batteries and batery
selectors. I notice when each motor was running on it’s own battery that the port motor was not charging. However when both batery selectors were on 1+2 the port motor was charging. After return from a offshore trip I piullerd the plugs on the port motor and one of the plugs electrode was smashed . When I pulled the head the center piston was missing a chunk on the top edge and the piston was badly pitted. I also noticed the other pistons were were starting to pit. My thinking is that when the port motor was selected on it’s own battery and the output of the alternator was not getting back to the battery. It created a condition were electrolysis started and the pistons were sarificed? Yes there are other zincs on the motor both on the lower unit and exhaust manifold. Maybe somebody can shead a little light on this. Thanks Tom -- Posted at author's request, using moderated http://www.BoatingForumz.com interface Thread archive: http://www.BoatingForumz.com/Elecrol...ict100044.html |
#2
posted to rec.boats
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Elecrolysis Think My pistons got eaten, Is this possible?
tomtemp937 wrote:
I have a a pair of 2006 Honda 225 with dual batteries and batery selectors. I notice when each motor was running on it’s own battery that the port motor was not charging. However when both batery selectors were on 1+2 the port motor was charging. After return from a offshore trip I piullerd the plugs on the port motor and one of the plugs electrode was smashed . When I pulled the head the center piston was missing a chunk on the top edge and the piston was badly pitted. I also noticed the other pistons were were starting to pit. My thinking is that when the port motor was selected on it’s own battery and the output of the alternator was not getting back to the battery. It created a condition were electrolysis started and the pistons were sarificed? Yes there are other zincs on the motor both on the lower unit and exhaust manifold. Maybe somebody can shead a little light on this. Thanks Tom You probably have a bad alternator which could have easily damaged the ECM in the engine. Not electrolysis's but preignition. This is wild speculation on my part as I have zero knowledge of those engines. |
#3
posted to rec.boats
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Elecrolysis Think My pistons got eaten, Is this possible?
On Sat, 06 Sep 2008 15:34:05 -0400, jim wrote:
tomtemp937 wrote: I have a a pair of 2006 Honda 225 with dual batteries and batery selectors. I notice when each motor was running on it’s own battery that the port motor was not charging. However when both batery selectors were on 1+2 the port motor was charging. After return from a offshore trip I piullerd the plugs on the port motor and one of the plugs electrode was smashed . When I pulled the head the center piston was missing a chunk on the top edge and the piston was badly pitted. I also noticed the other pistons were were starting to pit. My thinking is that when the port motor was selected on it’s own battery and the output of the alternator was not getting back to the battery. It created a condition were electrolysis started and the pistons were sarificed? Yes there are other zincs on the motor both on the lower unit and exhaust manifold. Maybe somebody can shead a little light on this. Thanks Tom You probably have a bad alternator which could have easily damaged the ECM in the engine. Not electrolysis's but preignition. This is wild speculation on my part as I have zero knowledge of those engines. A strong possibility though. |
#4
posted to rec.boats
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Elecrolysis Think My pistons got eaten, Is this possible?
On Sat, 06 Sep 2008 21:36:18 GMT, Short Wave Sportfishing
wrote: On Sat, 06 Sep 2008 15:34:05 -0400, jim wrote: tomtemp937 wrote: I have a a pair of 2006 Honda 225 with dual batteries and batery selectors. I notice when each motor was running on it’s own battery that the port motor was not charging. However when both batery selectors were on 1+2 the port motor was charging. After return from a offshore trip I piullerd the plugs on the port motor and one of the plugs electrode was smashed . When I pulled the head the center piston was missing a chunk on the top edge and the piston was badly pitted. I also noticed the other pistons were were starting to pit. My thinking is that when the port motor was selected on it’s own battery and the output of the alternator was not getting back to the battery. It created a condition were electrolysis started and the pistons were sarificed? Yes there are other zincs on the motor both on the lower unit and exhaust manifold. Maybe somebody can shead a little light on this. Thanks Tom You probably have a bad alternator which could have easily damaged the ECM in the engine. Not electrolysis's but preignition. This is wild speculation on my part as I have zero knowledge of those engines. A strong possibility though. It breaks down like this: 100% likely to be detonation. No chance whatever it's electrolysis. No electrolyte around. Classic detonation damage, however. Casady |
#5
posted to rec.boats
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Elecrolysis Think My pistons got eaten, Is this possible?
On Sep 6, 5:13*pm, (Richard Casady) wrote:
On Sat, 06 Sep 2008 21:36:18 GMT, Short Wave Sportfishing wrote: On Sat, 06 Sep 2008 15:34:05 -0400, jim wrote: tomtemp937 wrote: I have a a pair of *2006 Honda 225 with dual batteries and batery selectors. I notice when each motor was running on it’s own battery that the port motor was not charging. *However when both batery selectors were on 1+2 the port motor was charging. After return from a offshore trip I piullerd the plugs on the port motor and one of the plugs electrode was smashed . When I pulled the head the center piston was missing a chunk on the top edge and the piston was badly pitted. I also noticed the other pistons were were starting to pit. My thinking is that when the port motor was selected on it’s own battery and the output of the alternator was not getting back to the battery. It created a condition were electrolysis started and the pistons were sarificed? Yes there are other zincs on the motor both on the lower unit and exhaust manifold. Maybe somebody can shead a little light on this. Thanks Tom You probably have a bad alternator which could have easily damaged the ECM in the engine. Not electrolysis's but preignition. This is wild speculation on my part as I have zero knowledge of those engines. A strong possibility though. It breaks down like this: 100% likely to be detonation. No chance whatever it's electrolysis. No electrolyte around. Classic detonation damage, however. Casady I agree with casady |
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