Hi all,
I recently bought an 07 280 Sundancer with twin 4.3 mercruisers(480 hours). The sea trial and survey went perfectly. I did not get a compression test, I know I should have. Fast forward to a month later(last Saturday) it gets put in the saltwater and I attempt to drive it home, motors keep shutting off. I have to get towed in.
my reputable mechanic comes and checks it out and finds the end of some of the spark plugs disintegrated and 3 of my 12 cylinders dead with 0, 15 and 30 on compression(spread out between 2 motors). He and another separate mechanic agree my pistons are probably shot and I need new long blocks.
What on earth could have caused this after a perfect survey and sea trial? Literally 10 minutes on the Chesapeake bay and it starts to fail. No alarms, all gauges stayed normal. I have another mechanic coming to borescope the motor. However, my mechanic is pretty sure my engines are screwed. They both fire up and idle fine now. Any help is appreciated, I am losing my mind.
I recently bought an 07 280 Sundancer with twin 4.3 mercruisers(480 hours). The sea trial and survey went perfectly. I did not get a compression test, I know I should have. Fast forward to a month later(last Saturday) it gets put in the saltwater and I attempt to drive it home, motors keep shutting off. I have to get towed in.
my reputable mechanic comes and checks it out and finds the end of some of the spark plugs disintegrated and 3 of my 12 cylinders dead with 0, 15 and 30 on compression(spread out between 2 motors). He and another separate mechanic agree my pistons are probably shot and I need new long blocks.
What on earth could have caused this after a perfect survey and sea trial? Literally 10 minutes on the Chesapeake bay and it starts to fail. No alarms, all gauges stayed normal. I have another mechanic coming to borescope the motor. However, my mechanic is pretty sure my engines are screwed. They both fire up and idle fine now. Any help is appreciated, I am losing my mind.