S & G TOOL AID SGT33650 Top Dead Center Indicator

•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.Weight: 0.33 lbs.WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.(California Prop 65)