DJ
MEMBER
Bolivia
Well we have had kind of the perfect storm this week. It started with a routine oil change, metal in the filter and today I'm looking at what is left. One piston destroyed, Cam and followers shot, Crank below limits (it was M10), Case TBD and my head spinning from trying to pin down options.
Seems like we had a simultaneous piston pin plug failure and camshaft biting the dust since the last oil change. About 45 bronze flakes in the suction screen and a quarter teaspoon of course, sand-like metal in the filter. A mix of bronze, ferrous, bearing and you name it.
The cam probably started pitting years ago, should have pulled a jug at pre-buy. The engine has 750 SMOH by Aerotech in 2011. We have put 250 on it in the last three years. TTSN unknown. I'm super thankful it held together and we found it when we did otherwise a Cub recovery or worse could have been part of the story.
Here is what I know so far. New Lyc. Thunderbolt ~$30K but 6 month lead time! No Superior Kit engines available at present. ECI kit 75 day lead time. Overhaul at Aerosport north of $20K due to bad Crank. Everyone else reputable is way higher. Mission Maintenance Services in Ohio is offering to help with labor if we build back from our core with new crank, cam and cylinders for mid to high teens.
Please shoot back with ideas, contacts, accusations, a serviceable crank or fresh engine you may need to unload or anything else helpful.
Now for the eye candy.
Seems like we had a simultaneous piston pin plug failure and camshaft biting the dust since the last oil change. About 45 bronze flakes in the suction screen and a quarter teaspoon of course, sand-like metal in the filter. A mix of bronze, ferrous, bearing and you name it.
The cam probably started pitting years ago, should have pulled a jug at pre-buy. The engine has 750 SMOH by Aerotech in 2011. We have put 250 on it in the last three years. TTSN unknown. I'm super thankful it held together and we found it when we did otherwise a Cub recovery or worse could have been part of the story.
Here is what I know so far. New Lyc. Thunderbolt ~$30K but 6 month lead time! No Superior Kit engines available at present. ECI kit 75 day lead time. Overhaul at Aerosport north of $20K due to bad Crank. Everyone else reputable is way higher. Mission Maintenance Services in Ohio is offering to help with labor if we build back from our core with new crank, cam and cylinders for mid to high teens.
Please shoot back with ideas, contacts, accusations, a serviceable crank or fresh engine you may need to unload or anything else helpful.
Now for the eye candy.
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