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#10053 11/14/2003 1:00 AM | Joined: Nov 2003 Posts: 86 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2003 Posts: 86 | I'm only getting ~ 4" Hg on my vacuum meter at the carb fitting while at idle. Is this way too low? I haven't checked gaskets yet. Is this is why the timing doesn't change with the vaccum line attached or not. What # should I shoot for? :confused:
I know you believe you understand what you think I said, but I'm not sure that you realize that what you heard is not what I meant!
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#10054 11/14/2003 1:05 AM | Joined: May 2003 Posts: 10 Member | | Member Joined: May 2003 Posts: 10 | Ported or manifold? My ported vac is 0 at idle and ramps up with motor speed. Manifold is 20" at idle. | | |
#10055 11/14/2003 2:35 AM | Joined: Nov 2003 Posts: 86 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2003 Posts: 86 | I'm measuring it at the port on the base of the carb.
I know you believe you understand what you think I said, but I'm not sure that you realize that what you heard is not what I meant!
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#10056 11/14/2003 3:29 AM | Joined: May 2003 Posts: 10 Member | | Member Joined: May 2003 Posts: 10 | Manifold then. Yes, that's way too low IMO. Check for vac leaks.
Most folks seem to use ported vacuum for timing advance. | | |
#10057 11/14/2003 7:39 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | The port on the base of a Rochester B is ported. Try the wiper bung on the manifold.
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