Mazda MX-3 silhouetteMX-3

A/C COMPRESSOR — Removal / Installation

G-54prose procedure

Drive belt removal differs between K8 (V6) and B6 (I4) engines. K8 uses idle pulley locknut + adjusting bolt; B6 uses bolts A/B/C and adjusting bolt D.

Removal / Installation

A/C Compressor Removal / Installation

  1. 1
    Discharge the refrigerant from the system.
  2. 2
    Remove the drive belt as follows. K8: 1) Loosen the idle pulley locknut. 2) Loosen the adjusting bolt and remove the drive belt. B6: 1) Loosen bolt A. 2) Loosen nut C. 3) Loosen nut B. 4) Loosen adjusting bolt D and remove the drive belt.
    K8 engine accessory drive area showing the drive belt routing with callouts for ADJUSTING BOLT, LOCKNUT and DRIVE BELT. Used for removing the drive belt on the K8 engine.
  3. 3
    Remove the lower cover.
    A/C compressor mounted on the engine, lower-cover view illustrating bolt locations for compressor removal.
  4. 4
    Disconnect the hoses from the A/C compressor.
    A/C compressor with refrigerant hoses connected and a mounting bolt callout. Illustrates disconnecting the hoses from the A/C compressor.
  5. 5
    Remove the bolts and remove the A/C compressor.
  6. 6
    Install in the reverse order of removal. When replacing the A/C compressor with a new one, remove the following amount of compressor oil from the new A/C compressor. Removed oil amount cm3 {cc, fl oz} = 175 {175, 5.92} - [oil from old A/C compressor + 15(+5/-0) {15(+5/-0), 0.5(+0.2/-0)}]
  7. 7
    Adjust the drive belt deflection as follows. K8: 1) Loosen the locknut. 2) Turn the adjusting bolt to adjust the drive belt deflection to specification. 3) Tighten the locknut.
    Tightening torque: 32-46 N.m {3.2-4.7 kgf.m, 24-33 ft.lbf}
    Belt-routing schematic for drive belt deflection check. Pulleys labeled P/S PUMP, CRANKSHAFT and MAGNETIC CLUTCH with a DEFLECTION measurement arrow on the belt span.
Removed oil amountwhen replacing A/C compressor with new one
175 {175, 5.92} - [oil from old A/C compressor + 15(+5/-0) {15(+5/-0), 0.5(+0.2/-0)}]cm3 {cc, fl oz}
Tightening torque (locknut)
314 - 451N·m

Drive belt deflection when applying moderate pressure 98 N {10 kgf, 22 lbf}

New
Deflection when applying moderate pressure 98 N {10 kgf, 22 lbf}8.0-9.0 mm {0.32-0.35 in}
Used
Deflection when applying moderate pressure 98 N {10 kgf, 22 lbf}9.0-10.0 mm {0.36-0.39 in}

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