Re: Re: Dwell

Posted by Wayne Swenson on November 26, 2003 at 21:53:30 from (66.228.234.57):

In Reply to: Re: Dwell posted by Michael Soldan on November 26, 2003 at 14:39:21:

Dwell is the amount of time expressed in degrees of distributor cam rotation that the points remain closed.
The points open time vs points closed time(dwell) is a 1/3--2/3 ratio.
Using an 8 cylinder engine as an example: 360 degrees of cam lobe rotation to fire all cylinders divided by 8 = 45 degrees of rotation allowed for each cylinder. 2/3 of 45 = 30 degrees of dwell for that engine.
6 cylinder: 360 / 6 = 60 X 2/3 = 40 degrees dwell.
4 cylinder: 360 / 4 = 90 X 2/3 = 60 degrees dwell.
Now that I have given the math lesson for this evening, just set the points using a clean feeler gauge with the point rubbing block on the high point of the cam lobe and forget about dwell on the low speed engines.
I had to dig into my OLD automechanics lesson plans to remember that lesson.
Getting the adjustments JUST RIGHT is a lot of fun and gives a person much satisfaction when done.

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• Re: Re: Re: Dwell Allan 03:18:33 11/27/03 (0)

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