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Old 12-29-2009, 12:02 PM
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CasualGourmet CasualGourmet is offline
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Join Date: Oct 20, 2009
Location: Wilmington NC
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MC2150 Vacuum Line

Does anyone have a diagrahm for what the correct vacuum line hook ups are? Thanks!!
Let me rephrase that, one that works without the smog pump

Last edited by CasualGourmet : 12-29-2009 at 12:08 PM.
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Old 12-29-2009, 12:28 PM
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brad_fsj10 brad_fsj10 is offline
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I posted the link to the best vacuum diagrams around yesterday...

Remove the T-fitting between the manifold vacuum source and the air pump, and route the vacuum line from the mainfold vacuum source directly to the top port on the CTO valve...
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Old 12-29-2009, 12:30 PM
dbuie dbuie is offline
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Join Date: Jun 29, 2009
Location: Southeast NC
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Smog pump or Charcoal canister? On my '89 my smog pump hose goes to my air diverter valve and then based on engine temps, air is routed to the manifolds/cat. There are two valves on the diverter assembly. The top gets manifold vacuum and the bottom one is connected to a dual CTO on the back of the manifold. I have no vacuum lines from the carb going to the smog pump. The charcoal canister does have lines connected to the carb however.
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