Next week, I’ll be removing my complete Gen 1 Jabiru firewall-forward package. The engine has 300 hours and continues to run well. I’ll be flying to Viking for a swap to the Viking 140T—a compelling option for budget-conscious builders seeking an affordable upgrade.

This Jabiru engine sat for several years prior to its first start in September 2018. It shows some corrosion, and Nick performed a valve job in September 2022. Leak-down compression values fall below the 60 PSI threshold listed in the manual, primarily due to cylinder corrosion. However, starter-spun compression readings are solid:

  • Cylinder #1: 147 PSI
  • Cylinder #2: 146 PSI
  • Cylinder #3: 159 PSI
  • Cylinder #4: 155 PSI
  • Cylinder #5: 151 PSI
  • Cylinder #6: 151 PSI

Master orifice reading was 38/80 PSI. According to several reputable A&P IAs, values above 38 are acceptable when not caused by valve issues and they were all well above that.

Available for best reasonable offer. This is a complete firewall-forward package with known history and solid performance—ideal for someone looking to build economically with full transparency.

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