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02-16-2020, 07:14 PM | #1 |
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Join Date: May 2010
Location: Suth'N Maine
Posts: 1,996
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Timing, piston position...
A few years ago in the Vintage Ford tech tips section by Milt Webb he talked about on Mag coil systems, position #1 3/32" past TDC (power stroke). Turn the key on and the #1 coil should start to buzz with spark lever retarded (up).
He went on to explain non buzzing coil @ that timing position and corrections to shorten or lengthen the spark rod based on "start buzz" point. So instead of pulling a spark plug and using a screw driver atop the piston to locate TDC I came up with this. I figured as I had the head off to mark the crankshaft (blue dot) second picture @ TDC power stroke after setting dial indicator to zero in first picture and approx 3/32" past TDC about .0937 third picture and marking crankshaft again with (black dot), Fourth picture. I can transpose those marks to the new crankshaft pulley for future reference. |
02-16-2020, 09:10 PM | #2 |
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Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Re: Timing, piston position...
You won the battle but you lost the war.
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02-17-2020, 05:17 PM | #3 |
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Join Date: May 2010
Location: Tulsa OK
Posts: 476
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Re: Timing, piston position...
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You really have to be pulling the crank through to determine exactly when the timer event happens. I don't see how it could be done using anything that you had to see at crank level.
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