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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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Jul 21st, 2025 | | | | Joined: Mar 2010 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 64 | I am trying again. Do you time a GMC or any chevy of 1941 era with the vacuum advance connect or disconnected to the distributor ? The engine is timed fairly well but when you hit the throttle it advances very quickly and will back off, when you release, but not totally. There is nothing wrong with throttle setup on the Zenith. Suggestions please or comments. Thanks Doug P.S. I timed it without the vacuum connected. | | | | | Joined: Nov 2005 Posts: 6,061 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,061 | Hy doug one, although it is never actually spelled out in any instruction I've read, I believe the intent was to set the timing without any vacuum or centrifugal advance. The instruction for static timing (not running) the engine says to make sure the vacuum advance is in its full retard position. The instruction for for timing a running engine with a timing light says to keep the engine at idling speed so that the centrifugal advance does not come into play. So I would say that disconnecting and plugging the vacuum advance while timing the engine with a timing light would not cause any problems. I hope that helps. | | | | | Joined: Mar 2010 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 64 | Thanks, appreciate it, Doug | | |
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