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Old 02-26-2002, 10:11 AM
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280 C Dwell Settings

I am currently having problems with the ignition on my 1974 280C. What is the gap settings for the points? I have tried to get the dwell up to 30 to 40 degrees per the manual but I can't seem to get it this high and still have the vehicle start. I have set the point gap at .016" which gives me a dwell angle of 26 deg. If I try to set the gap any closer the car won't start. The car has a slight driveability problem. It has a hesitation off idle. It's not a huge problem, it doesn't die but my wife complains about it. If you are more agressive with the throttle it comes off idle fine but under normal conditions it has a hesitation. When you shut the vehicle off I get a slight back fire through the exhaust system. I have the timing set at 4 deg ATDC and it goes up to about 7 deg BTDC with the vacuum line removed from the distributor at idle. Total advance is around 39 deg BTDC. The vacuum at idle is 15 " HG. Do I have a bad set of points? Any help with this problem would be greatly appreciated. I also recently change the plugs out which had no effect.
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Old 02-26-2002, 03:43 PM
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Start with new points,make sure your dwell meter is set for six cylinder engine and measure only while cranking.
You're looking for about 38 degrees.
After setting dwell lube the dist cam and recheck timing.
Good luck M.F.
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Old 02-26-2002, 04:59 PM
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Are you to measure the dwell at cranking rpm? I was measuring it at idle.
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