Air Intake System
Chamber Volume Control Valve
Test
CAUTION: Do not adjust the chamber volume control
valve full-close screw. It was preset at the factory.
1. Check the chamber volume control valve shaft for
binding or sticking.
2. Check the chamber volume control valve for
smooth movement.
3. Check that A of the chamber volume control valve
is in close contact with the stopper when the
vacuum hose is disconnected from the diaphragm.
STOPPER
4. Check that B of the chamber volume control valve
is in close contact with the full-close screw when
you apply 1 5″ of vacuum to the diaphragm.
FULL-CLOSE
SCREW
If any fault is found, clean the linkage and shafts
with carburetor cleaner.
If the problem still exists after cleaning,
disassemble the intake manifold and check the
chamber volume control valve (page 11-123).
Chamber Volume Control Valve
Test
CAUTION: Do not adjust the chamber volume control
valve full-close screw. It was preset at the factory.
1. Check the chamber volume control valve shaft for
binding or sticking.
2. Check the chamber volume control valve for
smooth movement.
3. Check that A of the chamber volume control valve
is in close contact with the stopper when the
vacuum hose is disconnected from the diaphragm.
STOPPER
4. Check that B of the chamber volume control valve
is in close contact with the full-close screw when
you apply 1 5″ of vacuum to the diaphragm.
FULL-CLOSE
SCREW
If any fault is found, clean the linkage and shafts
with carburetor cleaner.
If the problem still exists after cleaning,
disassemble the intake manifold and check the
chamber volume control valve (page 11-123).