| 403 Dual Vacuum Advance (California Emissions) [message #318429] |
Sat, 03 June 2017 20:31  |
Ty Hardiman
Messages: 43
Registered: April 2017
Location: Norman, Oklahoma
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Working through the vacuum system, I have a question. This is a 1977 California emissions 403 and the maintenance manual shows (and I have) a dual-vacuum distributor advance. I think the second vac line is to retard the timing, however that line has been disconnected from the christmas tree TVS valves (California has two) and directly connected to the carb. So it looks like I'm running full vac to the advance and retard side simultaneously. The previous owner completely abandoned both of the TVS valves which is why I am tracing the vacuum system in the first place. Should I eliminate the vacuum line to the second port?
Norman, OK / August 1977 Kingsley / 403 / 3.55 / 16" / Quadrajet
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