Re: Static timing and points gap for 1940s 2 stoke, low compression engine - Zurcher

Pushrod Fifty /
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Curious about the exhaust header, is it a double tube exhaust? One side looks different than the other.

I use an analog multimeter set on buzzer mode and attach one lead to the points wire and the other to ground. The reduction in sound tells that the points have opened. That's the BTDC firing point.

If you don't know the spec, as mentioned by others, start out real retarded as that was the norm for those days. Is there a manual spark advance on the distributor? It may have had a bar mount control to advance it as the engine reved.

The easiest way in this case to set the timing is to use a wooden coffee stirrer with pencil marks. Put the stirrer in the plug hole and turn to TDC, turning in running rotation. Mark the stirrer at the top of the head with stirrer hitting piston top. You can feel it pretty close by turning back and forth a hair. Make a mark 1/8" above that line. Turn the flywheel backwards- BTDC until the top Mark is at the top of the head. Set your timing adjustment so that when you turn the flywheel to match the second line (BTDC) , the buzzer reduces in sound. Adjust the measurement as needed once it's running. If it doesnt start and rule out ignition, check the carb and see if the plug is wet. Yet some starting fluid that has top end lube in it, available at a marine supply store.

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Subject Written By Posted
  Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherTopic by: kenneth Winter kenneth Winter 02/13/20 11:30AM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Probably Fred Probably Fred 02/13/20 11:37AM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: el pollo el pollo 02/13/20 12:09PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Dirty30 Dillon Dirty30 Dillon 02/13/20 12:28PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: kenneth Winter kenneth Winter 02/13/20 12:55PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Graham Motzing Graham Motzing 02/13/20 12:59PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Dirty30 Dillon Dirty30 Dillon 02/13/20 02:12PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: kenneth Winter kenneth Winter 02/13/20 12:59PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: kenneth Winter kenneth Winter 02/13/20 12:52PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: kenneth Winter kenneth Winter 02/13/20 12:57PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: el pollo el pollo 02/13/20 01:01PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Pushrod Fifty Pushrod Fifty 02/14/20 09:44AM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: Aaron Blair Aaron Blair 02/14/20 09:58AM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: el pollo el pollo 02/14/20 11:45AM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: pat splat pat splat 02/14/20 01:53PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: el pollo el pollo 02/14/20 06:10PM
  Re: Static timing and points gap for 1940s 2 stoke, low compression engine - ZurcherRe: pat splat pat splat 02/15/20 09:37AM

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