Re: Wanted: Timing light for Model A

Posted by Paul Koncak on August 03, 1997 at 09:06:10

In Reply to: Wanted: Timing light for Model A
posted by Al Wood on July 31, 1997 at 16:09:02

: Need a source for a timing light suitable for use with a 6 volt, unmodified Model A ignition system.
Al, I have used two different timing lights on my cars.But first, I had to make a reference point.Here's how to make a tool to do it:
1. With a piece of aluminum sheet metal 1/16" thick x 2" X 12". Curl one end so that it fits over the timing cover mount for the generator.Curl the other end so that it will fit over the timing pin.You wiil have to shape and bend accordingly.Do so until the forward edge of the tool will run immediately behind and even with the top of the crankshaft pulley, but will not touch it.
2.Remove the #1 spark plug.Put a piece of stiff copper wire into the cylinder and turn the engine slowly by hand until the piston stops pushing the wire up.Take care in doing this because you are trying to locate the exact top dead center of the #1 cylinder.(some of the replacement timing gears have the timing mark [indention] slightly out of position.
3. With a small file, put a notch on the top of the crankshaft pulley.Immediately across from this notch, put a scribe mark on the tool you just made.Put a dab of white paint on the notch and the scribe mark.Paint the tool black. Do a good job with the curls, bends, etc. and the tool will remain in place all through the tests.
For a light, I have used one of the old cheap ones that require no battery to operate.It is placed in series with the #1 spark plug and uses that voltage and current to operate.The flash is fairly dim and you may have to use a darkened garage area to see it.I have also used a modern electronic 12V light.The voltage put out by the charging system, with the engine running, is enough to make the light operate.
Have fun!
Paul

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