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Old 04-10-2020, 01:05 PM   #16
Bruce of MN
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Join Date: May 2010
Location: VA
Posts: 1,410
Default Re: High compression head and timing?

Stop the presses! I was premature on this. I didn't set the static timing with the dizzy body on, so it was off. I am working on the Mark 2 version now.

Quote:
Originally Posted by Jim/GA View Post
I have my initial timing set at exactly TDC. I have added a small stop on my spark advance quadrant that limits my total advance to 28 crank degrees (with a 5.9:1 BF head). That has proven good for everyday driving; I still retard it a few clicks when working hard, climbing a steep hill. .
To use with my 6:1 head, I made this little clamp from a 1/4" coupler nut and an allen screw. The opening was carved with a cutting wheel on my dremel and dressed up with a file. After setting the spark with the lever up at TDC, I set the engine at 28 deg BTDC, using the Nurex timing strip. Next, I lowered the lever until the points opened and installed the little clamp against the lever. To check, I put the engine 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!






Last edited by Bruce of MN; 04-10-2020 at 02:06 PM.
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