ATS Pro Differential Cylinder Pressure Tester – 2E

$178.72

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The ATS Pro 2E Differential Cylinder Pressure Tester is a precision aircraft engine diagnostic tool designed to evaluate cylinder compression and identify potential internal engine problems. Ideal for aviation maintenance professionals, A&P mechanics, and aircraft owners, this dual-gauge tester helps assess cylinder condition by measuring pressure leakage during differential compression testing.

Featuring a precision 0.040-inch orifice and factory-calibrated gauges, the ATS 2E is suitable for Lycoming aircraft engines in accordance with Service Instruction SI-1191A. The integrated on/off safety valve allows pressure to be released before disconnecting the tester from the cylinder, improving safety and convenience during maintenance.

Designed to help identify leaking intake or exhaust valves, worn piston rings, defective cylinders, and other internal engine issues, the tester includes an 18mm spark plug adapter, 24-inch pressure hose, and protective carrying case.

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Features & Specifications:

  • Manufacturer: Aircraft Tool Supply (ATS)
  • Part Number: 2E
  • Type: Differential Cylinder Pressure Tester
  • Orifice Size: 0.040 inch
  • Gauge Accuracy: Precision gauges matched within ±2%
  • Engine Compatibility: Textron Lycoming engines per SI-1191A
  • Spark Plug Adapter: 18mm included
  • Pressure Hose: 24 inches
  • Safety Valve: Integrated on/off valve for pressure release
  • Calibration: Factory calibrated
  • Certification: Letter of certification available upon request
  • Carrying Case: Protective form-fitted hard case included
  • Instructions: Complete operating instructions included
  • Warranty: Limited lifetime manufacturer warranty

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Important: Teledyne Continental engines require the ATS 2EM model with a master orifice to comply with Continental Service Bulletin SB03-3. For other engine manufacturers, consult the applicable maintenance documentation and FAA AC 43.13-1B for instrument selection guidance.

-003 (Left) / CC2840270003-004 (Right) 23137-013 (Left) / 23137-014 (Right)

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