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Top Dead Center Indicator

SKU: 33650
  • Tool whistles as the piston approaches Top Dead Center (TDC) on the compression stroke and stops whistling when the piston reaches TDC.
  • Helps to eliminate the guesswork involved when diagnosing jumped timing belts and timing chains.
  • Aids in valve adjustments and installation of distributors, timing belts and timing chains.
  • 2-in-1 fitting threads into all 14mm and 18mm spark plug ports.
  • 27" overall length.
  • Not for use on diesel engines.