Top Dead Center Indicator - S & G Tool Aid

The S & G Tool Aid 33650 Top Dead Center Indicator is an indispensable tool for professional automotive and industrial technicians. Engineered to precisely locate Top Dead Center (TDC) on gasoline engines, this robust indicator provides a reliable mechanical stop for the piston and offers clear audible feedback, ensuring absolute accuracy for critical engine timing, assembly, and diagnostic procedures.

Key Features

• Audible TDC Confirmation: Employs a whistling function that signals the piston's approach to TDC on the compression stroke, ceasing exactly when TDC is achieved for precise ignition and valve timing adjustments.
• Universal Spark Plug Port Compatibility: Designed with a 2-in-1 threaded adapter, this indicator seamlessly installs into all 14mm and 18mm spark plug ports, accommodating a wide range of gasoline engines.
• Robust Steel Construction: Manufactured from durable steel, this tool is built to withstand the rigorous demands of professional shop environments and repeated engine rebuilds, ensuring long-term reliability.
• Positive Piston Stop & Tactile Feedback: Delivers a definitive mechanical stop and features an extended body, allowing technicians to easily feel and confirm exact piston contact while manually rotating the crankshaft.
• Extended Reach Design: With an overall length of 27 inches, it provides ample access for applications involving deep spark plug holes.

Applications

The S & G Tool Aid 33650 Top Dead Center Indicator is an essential tool for professional technicians undertaking tasks such as:

• Precisely establishing true TDC when degreeing camshafts or verifying cam timing.
• Accurately confirming factory timing marks on harmonic balancers and timing covers, which is critical for diagnosing jumped timing belts and chains.
• Setting up ignition timing for both distributor-based and crank-trigger ignition systems.
• Assisting with detailed valve adjustments and clearance checks during engine assembly or repair.

Specifications

• Manufacturer: S & G Tool Aid
• Model Number: 33650
• Weight: 0.35 lb
• Dimensions: 9.6 x 9.5 x 1.25 in
• Overall Length: 27 in.
• Spark Plug Port Compatibility: 14mm and 18mm