Engine Issues

After only 26 hours of operation after new parts were installed, this magneto quit producing spark. Troubleshooting found the point timing had drifted off and was impossible to reset within manual limits. The plastic cam follower was found worn or melted. New parts were installed and functionally checked good. Engine is a Continental IO-360-A, installed in a Maule M-4-210Part Total Time: 26.0 hours

Editorial Staff

Wednesday, October 23, 2013 at 12:00 AM ET

Verified

Key Takeaways:

Several critical engine components, particularly magnetos, experienced premature failures at relatively low operating hours across various aircraft.
Many reported issues indicate manufacturing or assembly defects, such as inadequately torqued magneto screws and recurring failures of turbocharger controllers.
Component malfunctions led to operational problems including hard starting, loss of spark, and failure of critical systems like turbocharging and cabin pressurization.

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Bendix S6LN25 Magneto – Failed Cam Follower
After only 26 hours of operation after new parts were installed, this magneto quit producing spark. Troubleshooting found the point timing had drifted off and was impossible to reset within manual limits. The plastic cam follower was found worn or melted. New parts were installed and functionally checked good. Engine is a Continental IO-360-A, installed in a Maule M-4-210
Part Total Time: 26.0 hours