Thread: Finding TDC
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Old 05-26-2002, 06:06 PM
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Location: Northern California, CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
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Zimmy,

You must have a bent pointer or something got twisted on installation.. Not that they would be the same, but I get pinging at about 2200 rpm to about 2600 rpm using the light springs when I run 12 degrees of initial with 26 degrees of mechanical advance.. I use two blue springs currently with the smallest mechanical stop (26 degrees). I could likely use more initial but it seems to work best overall.. No pinging but I'm all in at 2800..

If it isn't pinging, get it set to the best "feel" and check it again using a reliable advance timing light.. see if the light at whatever rpm and number of degree points in your curve you check match what you expect the distributer to based on the curves provided by MSD.. They should..

Another thing to consider.. Are you sure, 100% sure you are timing off # 1 cylinder? I know this sounds stupid but with the billet distributer you can easily think you are using #1 based on the location of the #1 terminal end (typical ford #1 spot) and be taking your readings off another terminal.. better to take off the plug end of the wire if there is any question..

Otherwise.. I might be inclined to pull #1 plug and watch it cycle, be sure you are at TDC of the compression stroke and look at your damper.. you will be (should be) about 5 degrees BTDC on the marks..

Regards,
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