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1949 VAC questions

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Philip Lang

06-28-2005 11:48:11

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I recently pulled my '49 VAC out of the weeds after not using it for about 4 years. The sitting had taken it's toll, I had to rebuild the starter, new points, condensor, cap and wires, coil, rebuilt carb. It started after all that, but the governor surges. It didn't surge when I parked it.

Might the governor straighten out if it runs a while? Could there be something besides the governor causing it to surge?

Thanks.

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Joe (Wa)

06-28-2005 12:22:41

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Re: 1949 VAC questions in reply to Philip Lang, 06-28-2005 11:48:11

The governor is probably surging in response to an engine rpm departure that exceeds the gov droop.

Run the engine at the rpm the gov is surging and then hold the gov arm steady so it won't move, listen for a rpm change in the engine like a cyl missing.

A dwell/tach meter is helpful to view small rpm changes caused by sticky valves, rings, etc. Working the engine moderately hard after a prolonged lay up is often helpfull in this instance.

Joe

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Augie

06-28-2005 14:55:44

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Re: 1949 VAC questions in reply to Joe (Wa), 06-28-2005 12:22:41

All good advice there. I'd take a second look at the carburetor if it didn't straighten up after a little bit of run time. My VAC likes to surge if the air/fuel ratio is just a little bit out of whack.

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Philip Lang

06-29-2005 06:21:14

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Re: 1949 VAC questions in reply to Augie, 06-28-2005 14:55:44

Thanks for the replies! I will check these things out. I didn"t really adjust the carb thoroughly, and I"ll make sure I"m firing on all 4 cylinders. Maybe I"ll just put in new plugs, I bought them but didn"t put them in because the old ones looked OK.

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