how to adjust the ignition
how to adjust the ignition
Cargo Master
Joined: Aug 2007
Posts: 2,560
Likes: 69
From: New Zealand
Lars
Assuming you have the original distributor & the points gap set correctly, the small plate with some timing marks on the right-hand side of the distributor can be loosened & moved UP to advance the timing, or DOWN to retard.
Here is a diagram, to see how to set your timing with the distributor off the engine, positioning the shaft to the bolt holes, using this adjustment.
http://www.vanpeltsales.com/FH_web/f...str-timing.htm
Then adjustment can be made on the vacuum brake (the bolt & locknut sticking out from the distributor body, by the timing plate screw) for vacuum advance.
Turning the adjuster OUT will advance the timing, IN to retard.
You will get best performance & economy by having as much timing advance as possible, but without pinging under load at lower rpm.
Assuming you have the original distributor & the points gap set correctly, the small plate with some timing marks on the right-hand side of the distributor can be loosened & moved UP to advance the timing, or DOWN to retard.
Here is a diagram, to see how to set your timing with the distributor off the engine, positioning the shaft to the bolt holes, using this adjustment.
http://www.vanpeltsales.com/FH_web/f...str-timing.htm
Then adjustment can be made on the vacuum brake (the bolt & locknut sticking out from the distributor body, by the timing plate screw) for vacuum advance.
Turning the adjuster OUT will advance the timing, IN to retard.
You will get best performance & economy by having as much timing advance as possible, but without pinging under load at lower rpm.
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