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plymouth Workshop Repair Guides


PB 150 V8-318 5.2L VIN T 2-BBL (1983)

Powertrain Management > Emission Control Systems > Thermostatic Air Cleaner > Component Information > Testing and Inspection > Page 1807

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Thermostatic Air Cleaner: Service and Repair

Fig. 20 Removing vacuum diaphragm (Typical)

VACUUM DIAPHRAGM, REPLACE
Carbureted Engines

1.

Remove air cleaner housing.

2.

Disconnect vacuum hose from diaphragm, drill through welded tab, Fig. 22, and tip diaphragm forward to disengage lock, then rotate diaphragm
counterclockwise. When diaphragm is free from snorkel, slide complete assembly to one side and disengage operating rod from heat control door.

3.

With diaphragm removed, check door for freedom of travel. The door should fall freely when released from the full up position. If it does not,
check door to snorkel side walls and hinge pin for interference.

4.

Remove any foreign matter with compressed air.

5.

Reverse procedure to install. Pop rivet tab into place and connect a hand operated vacuum pump to diaphragm. Apply 9 inches Hg vacuum to
diaphragm hose nipple and check that control door operates freely. Manually operating the heat control door could result in damage, leading
to malfunctioning of the system.

Powertrain Management > Emission Control Systems > Thermostatic Air Cleaner > Component Information > Testing and Inspection > Page 1807

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