TCM EQ3 Cylinders Cylinder Replacement On July 14, 2009, Teledyne Continental Motors (TSM) published the latest revision to its Mandatory Service Bulletin MSB09-1B. In it, TCM states it has determined a tool used to manufacture new TCM-brand cylinders “created an area of reduced thickness” between the upper spark plug bore and the fuel injector/primer nozzle bore “that may result in a crack after prolonged operation.” The MSB includes a list 288
Engines And Accessories
On July 14, 2009, Teledyne Continental Motors (TSM) published the latest revision to its Mandatory Service Bulletin MSB09-1B. In it, TCM states it has determined a tool used to manufacture new TCM-brand cylinders "created an area of reduced thickness" between the upper spark plug bore and the fuel injector/primer nozzle bore "that may result in a crack after prolonged operation." The MSB includes a list of affected engine models and engine/cylinder serial numbers dating back to August 2006 that may be affected.
Key Takeaways:
- Teledyne Continental Motors (TCM) issued a mandatory service bulletin (MSB09-1B) for EQ3 cylinders due to a manufacturing defect causing reduced thickness and potential cracking after prolonged operation.
- ECI cylinders (CL13SA and FRCN13.0) experienced multiple reports of head/barrel separation, often in new cylinders with zero or minimal operating time.
- Other reported component failures include Kelly ES4011-1LS alternators failing due to loose rectifier screws and Skytech 149NL starters experiencing bent through bolts, leading to early operational failures.
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