Re: I Will Defer...

Posted by Owen Aaland on April 13, 2007 at 15:05:24 from (65.161.86.75):

In Reply to: Re: I Will Defer... posted by John T on April 13, 2007 at 13:29:14:

There is no advance built into the H4 mag, only retard.

The impulse coupler causes retarding when the speed slows enough the engage the pawl. The degrees retarded is the angle traveled before the pawl releases. I do not remember amount of retard built in, but the mag runs with only two timing positions. Retarded at TDC and normal running position.

This is why IH wanted the mags replaced when using fire creater pistons. The distributors are variable with engine speed and ran more advance than the magneto normal timing at high idle.

Replies:

• Re: I Will Defer... John T 15:45:30 04/13/07 (1)
  • Re: I Will Defer... Owen Aaland 05:46:05 04/14/07 (0)

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