Re: More timing question on a '47 H

Posted by Bob M on June 25, 2004 at 09:26:53 from (165.170.128.66):

In Reply to: More timing question on a '47 H posted by Dave in CT on June 25, 2004 at 09:01:47:

Dave – You’re right. Your observation the timing mark doesn’t “jump around” is an indication the motor is in good mechanical shape – no backlash slop in the timing gears, distributor bearings are in good shape, etc. However that the timing mark doesn’t advance as RPM’s increase means the centrifugal advance is not working. Could be the advance mechanism is simply stuck from sitting, or could mean broken/missing parts inside.

If the centrifugal advance is working the timing notch will align with the pointer at low idle and will move farther away from the pointer (in the opposite direction of pulley rotation) as RPMs go up. Full advance is 40 deg BTDC – about 2” or so on the pulley rim.

The motor will run and pull with an inoperative advance mechanism. But it will have more power, run cooler and burn less fuel with the advance working.

Follow Ups:

• Re: Re: More timing question on a '47 H Dave in CT 10:14:40 06/25/04 (3)
  • Re: Re: Re: More timing question on a '47 H Theman 11:16:09 06/25/04 (0)
  • Re: Re: Re: More timing question on a '47 H Bob M 11:01:03 06/25/04 (1)
    • Re: Re: Re: Re: More timing question on a '47 H riverbend 20:32:12 06/25/04 (0)

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