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Old 11-13-2013, 04:58 AM
guylogan guylogan is offline
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No start and no vacuum on start

Need advise on getting her started. I'v done all the troubleshooting outlined in the manuals, got spark at the plugs and coil, compression not great (50's dry 85 wet). no fuel in cylinders. So I bought a new carb from Don and changed fuel tank to a portable one with fresh gas. NO JOY...Today I put a vacuum gage on the scavanger tube connection on the manifold, and got zero inches while cranking her over. So the question is how much vacuum should I have when I crank it. And if thats the problem how likley is a vacuum leak from with-in the maniold.

I don't understand how the manifold works ( I know it has intake exhaust and cooling) but what I mean is with 6 holes between the head and manifold. Which ones are which and where could a vacumme leak be. I tried ether around the edge of the manifold but it diden't help. Also there's no water in the oil or in the cylinders.

Oh buy the way the boats a Columbia 36 in San Diego Bay.
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