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  #1  
Old 05-11-2017, 06:06 PM
tbirdmike63 tbirdmike63 is offline
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Default timing

Hey everyone, I have a 1966 428, what should the timing be set at, I read 10 degrees below TDC, then I read 6 degrees below TDC? Any help would be much appreciated. Thanks!
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Old 05-11-2017, 06:08 PM
Yadkin Yadkin is offline
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If the engine will tolerate 10 without knocking under load then use that.
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Old 05-11-2017, 06:31 PM
tbirdmike63 tbirdmike63 is offline
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Not to sound to dumb, 10 degrees would be 10 notches, I believe there are 15 notches on the wheel. Thanks
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Old 05-11-2017, 06:42 PM
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The factory setting is 6 degrees BTDC. As Yadkin mentioned the closer to 10 degrees you can get without pinging the better your car will run. 10 degrees is clearly marked on the damper. There are 15 lines on the damper. Each line is 2 degrees up to 30. 10 degrees would be five lines after 0.

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Old 05-11-2017, 06:54 PM
tbirdmike63 tbirdmike63 is offline
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Thanks, and I do this with a fully warmed up motor with the vacuum advance disconnected and plugged?
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Old 05-11-2017, 07:21 PM
tbirdmike63 tbirdmike63 is offline
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I also read that sometimes the damper moves, and throws the timing marks off, how will I know if I have this problem?
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Old 05-11-2017, 09:13 PM
Yadkin Yadkin is offline
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Quote:
Originally Posted by tbirdmike63 View Post
Thanks, and I do this with a fully warmed up motor with the vacuum advance disconnected and plugged?
yes

Quote:
Originally Posted by tbirdmike63 View Post
I also read that sometimes the damper moves, and throws the timing marks off, how will I know if I have this problem?
Take the #1 plug out, turn the engine by hand and set the damper on TDC. Stick a 12" length of 1/4" wood dowel down the plug hole then turn the engine just a bit, first one direction, then the other. If the dowel does anything other than drop away from TDC you've got a problem.
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Old 05-11-2017, 09:21 PM
tbirdmike63 tbirdmike63 is offline
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How do I crank the motor by hand?
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Old 05-12-2017, 01:01 PM
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I have used a socket on the crankshaft nut on other engines with the spark plugs removed which might work if you have access.
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Old 05-12-2017, 01:26 PM
tbirdmike63 tbirdmike63 is offline
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On the crankshaft nut, is that where the fan is, I have a clutch fan, so the fan moves.
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