Mike's Workshop Manuals
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Mercury
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1981
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Zephyr Villager, 2.3L Eng VIN A
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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THERMACTOR Systems
THERMACTOR Systems
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Description
Operation
Notes
Air Pump
Air Bypass Valve
Notes
Air Bypass Valve (Normally Closed Type)
Air Bypass Valve (Normally Open Type)
Air Supply Control Valves
Thermactor Bypass/Diverter Valve
Standard Air Control/Shut-Off Valve and Air Control/Shut-Off Valve with Orifice
Solenoid Vacuum Valve
Differential Valve Delay Valve (DVDV)
Vacuum Vent Valve
Exhaust Check Valve
Testing
Air Pump
Air Bypass Valve
Normally Closed Type Bypass Valve
Normally Open By-Pass Valve (Without Vacuum Vent)
Normally Open By-Pass Valve (With Vacuum Vent)
Solenoid Vacuum Valve
Normally Closed Valve
Normally Opened Valve
Differential Valve Delay Valve (DVDV)
Check Valve
Air Supply Control Valves
Standard Air Control Valve
Air Control/Shut-Off Valve
Air Control/Shut-Off Valve with Orifice