Thread: Spark Question
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Old 07-05-2020, 02:58 PM   #9
30 Closed Cab PU
Senior Member
Join Date: Aug 2018
Location: Wisconsin
Posts: 2,291
Default Re: Spark Question

It only moves in a small amount - the timing pin is rounded and the timing gear is only slightly dimpled. For a better feel, file the pin to more of a point, or use a Phillips screwdriver. Remove the spark plugs and the motor will turn much easier, you will not be fighting the motor/piston compression. It takes 2 crank revolutions to hit TDC on all 4 cylinders.

To Get close to TDC Cylinder 1 is to remove the distributor top and locate the rotor as in the picture. then use the timing pin.

Another way is to rotate the motor with your thumb on the #1 spark plug hole till the compression starts to force past your thumb, put a stick or pencil in the plug hole and crank it till the pencil is at its highest point, then use the timing pin for final adjustment for TDC.

Attached Images
File Type: jpg TDC Cylinder 1.jpg (79.6 KB, 48 views)
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