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HOMESERVICE MANUALSMERCURY1966COMET NOT AVAILABLE, 3.3L ENG VIN T, NOT AVAILABLE TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)STEERINGMANUAL STEERINGPOWER STEERING PUMPS THOMPSON SLIPPERCHANGES, CAUTIONS, CORRECTIONS
1966 Mercury Comet Not Available, 3.3L Eng VIN T, Not Available Trans

Changes, Cautions, Corrections

1966 Mercury Comet Not Available, 3.3L Eng VIN T, Not Available TransSECTION Changes, Cautions, Corrections
NOTE: Early Continental and Mark III use crankshaft mounted Eaton Roller. Other later Ford Motor Co. models may also use Saginaw Vane type pump.
  • 1965-70 FORD MOTOR CO. POWER STEERING PUMP NOISE  : An out-of-flat flange on power steering pump inner housing may result in unsatisfactory pump operation. This condition may cause aeration of hydraulic fluid. Before disassembling housing from housing plate, check torque of four housing to housing plate screws. Torque must be 20 ft.lbs. minimum. If one or more of the attaching screws (or bolts) are below this torque, torquing to following specifications could eliminate cause of problem. Screw and washer assembly (28-32 ft.lbs.), washer head hex bolt (38-47 ft.lbs.). If housing screws or bolts were torqued to specification, then a check of housing flange flatness should be made.
  • 1971 THUNDERBIRD POWER STEERING PUMP NOISE  : Whining noise at approximately 1, 000 to 2, 000 RPM may be caused by an improper integral upper pressure plate. Plates which do not have a "boot" indentation mark should be replaced with a new type plate, part No. D***1AZ-3D590-A. Operate system to remove air after reassembly and installation of pump.
  • 1971 MARK III AND LINCOLN POWER STEERING SYSTEM NOISE  : May be caused by pressure line vibrations being amplified by hose orientation clip at gear. Reposition clip or remove if necessary.
  • 1970-77 MARK III POWER STEERING SYSTEM CONTAMINATION  : Contaminants trapped in filter inside inlet fitting assembly in hydraulically operated windshield motors can cause high pressures in the power steering system, and subsequent damage to pump and gear. Inlet fitting, Part No. DISZ-17C600-A, must be replaced if contamination is suspected. The inlet fitting is larger of two fittings which screws into hydraulically operated motor, and is located in line from gear to wiper motor. New fitting should be torqued to 27 Ft.Lbs.
  • 1965-1969 FORD MOTOR CO. ALL MODELS EQUIPPED WITH FORD-THOMPSON POWER STEERING PUMP  : New, thicker cover gasket now available to eliminate pump fluid aeration noise. Replace old gasket with new type whenever pump cover is removed. Part #C9AZ-3A760-A is new type gasket. Torque cover attaching screws to 28-32 Ft.Lbs. If bolt hex washer head type screws used torque to 38-47 Ft.Lbs.
  • 1971 COUGAR WITH 351 CID ENGINE POWER STEERING SYSTEM MOAN AND CHATTER NOISES DURING STATIC TURNS  : Check idle speed and correct if required. If problem is not corrected, proceed as follows: Replace pressure hose with long looped pressure hose and retainer assembly No. DIZZ-3A719-C and position retainer on top of fender apron to dash brace. Operate system to remove air and add fluid as required.
  • 1969-77 LINCOLN-MERCURY DIVISION, ALL CAR LINES NEW OIL FILTER AND PUMP HOUSING FOR POWER STEERING PUMP: A  new housing No. DIAZ-3A643-A and oil filter assembly No. DIAZ-3C602-A have been installed on 1971 vehicles with power steering. This housing and filter may be used as service replacement for previous replacement housing (no filter) for 1969 and 1970 vehicles.
    Fig 1: Thompson Slipper Power Steering Pump
    G09347823Courtesy of FORD MOTOR CO.
RENDER: 1.0x

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