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kenparker · 05-23-2016, 07:32 AM

I had a Tiny Tach mounted in my S/W Fordor (sold the car). The pickup wire was wrapped around the coil wire. Wrapping around the spark plug wire gave me the wrong reading.

The number of wraps around the coil wire affects the number of rpm's displayed.

05-23-2016, 07:32 AM	#3
kenparker Senior Member Join Date: May 2010 Location: Van, Texas Posts: 1,122	Re: Tiny Tach problems I had a Tiny Tach mounted in my S/W Fordor (sold the car). The pickup wire was wrapped around the coil wire. Wrapping around the spark plug wire gave me the wrong reading. The number of wraps around the coil wire affects the number of rpm's displayed.