This all aluminum unit is designed to improve and speed up the process of timing magnetos to the engine. Easily attached to the propeller spinner, it is accurate to within 1/2 degree. Has easy to read dial and comes with top dead center locator and mounting bands. Outer diameter 4-7/8" inside diameter 3-5/8". 2 lbs (0.5Kg) shipping weight.
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For 14MM spark plug engines. Simply screw this plug into the spark plug port and slowly rotate the prop until the piston face makes contact to assist in locating your engine's top dead center postion (TDC).
For 18MM spark plug engines. Simply screw this plug into the spark plug port and slowly rotate the prop until the piston face makes contact to assist in locating your engine's top dead center postion (TDC).
Deluxe aviation model with dual channel and audible tone. Designed specifically for aircraft magneto synchronization and engine timing. Eliminates all guesswork and provides a greater safety factor by creating perfect timing quickly and reliably.