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 for EQ3 cylinders due to a manufacturing defect (reduced thickness) causing potential cracks, affecting units produced since August 2006.
- ECI cylinders (models CL13SA and FRCN13.0) repeatedly exhibited head-barrel separation failures in brand-new or test-cell-only units.
- Other reported issues include a Kelly alternator failure due to loose rectifier screws at 307 hours, and multiple Skytech 149NL starters failing quickly (as low as 17.2 hours) from bent through bolts.
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