Ipa Top Dead Center (Tdc) Indicator Standard 6.25 Inch 14Mm Thread

The Standard Tdc Indicator Enables A Technician To Accurately Set A Piston To Top Dead Center (Tdc). Just Remove The Spark Plug, Screw In The Gauge And Rotate The Engine While Observing The Radial Marks On The Sliding Shaft And Note The Top Of The Piston Stroke. Do Not Use On An Engine That Has An Acute Spark Plug Angle Relative To The Flat Top Of The Piston Or You May Bend The Tdc Shafts.