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Old 04-11-2020, 09:24 AM   #23
Bruce of MN
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Join Date: May 2010
Location: VA
Posts: 1,395
Default Re: High compression head and timing?

Updated version:

To use with my 6:1 head, I made this little clamp from a 1/4" coupler nut and a setscrew. The opening was carved with a cutting wheel on my dremel and dressed up with a file. I shortened it and filed some off the top to let the spark lever pivot down to where it needed to be for full advance. After setting the spark with the lever up at TDC, I set the crankshaft at 28 deg BTDC, using the Nurex timing strip. Next, I installed the little clamp on the lower edge of the “window” that the lever swings through, then lowered the lever. To check, I put the crank at ~35 deg, then confirmed the points opened when I rotated the engine to the 28 deg spot. The price was right for the clamp!







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