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Heating/air Conditioning: Overhaul Honda Pilot I

Manual HVAC System 9 illustrations ~656 words

Compressor Clutch Overhaul

Special Tools Required

A/C clutch holder, Robinair 10204 or Kent-Moore J37872, or Honda Tool and Equipment KMT-J33939, commercially available

Scheme 110

Scheme 110: Compressor Clutch Overhaul

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Scheme 113

Scheme 113
  1. Remove the center bolt (A) while holding the pressure plate with a commercially available A/C clutch holder (B).
  2. Remove the pressure plate (A) and shim(s) (B), taking care not to lose the shim(s). If the clutch needs adjustment, increase or decrease the number and thickness of shims as necessary, then reinstall the pressure plate, and recheck its clearance (see «Compressor Clutch Check»(ref-174036-S34193162502005041500000) ). NOTE: The shims are available in three thicknesses: 0.1 mm, 0.3 mm, and 0.5 mm.
  3. If you are replacing the field coil, remove the snap ring (A) with snap ring pliers, then remove the pulley (B). Be careful not to damage the pulley or the compressor.
  4. Remove the screw from the field coil ground terminal (A). Remove the snap ring (B) with snap ring pliers, then remove the field coil (C). Be careful not to damage the field coil or the compressor.
  5. Reassemble the clutch in the reverse order of disassembly, and note these items: Install the field coil with the wire side facing down, and align the boss on the field coil with the hole in the compressor. Clean the pulley and compressor sliding surfaces with contact cleaner or other non-petroleum solvent. Install new snap rings, note the installation direction, and make sure they are fully seated in the groove. Make sure that the pulley turns smoothly after it's reassembled. Route and clamp the wires properly or they can be damaged by the pulley.

Scheme 114

Scheme 114: Compressor Relief Valve Replacement
  1. Recover the refrigerant with a recovery/recycling/charging station (see «REFRIGERANT RECOVERY»(ref-174036-S22803969732005041500000) ).
  2. Remove the relief valve (A) and the O-ring (B). Plug the opening to keep foreign matter from entering the system and the compressor oil from running out.
  3. Clean the mating surfaces.
  4. Replace the O-ring with a new one at the relief valve, and apply a thin coat of refrigerant oil before installing it.
  5. Remove the plug, and install and tighten the relief valve.
  6. Charge the system (see «SYSTEM CHARGING»(ref-174036-S42278027222005041500000) ).

Scheme 115

Scheme 115: Condenser Replacement

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Scheme 117
  1. Recover the refrigerant with a recovery/recycling/charging station (see «REFRIGERANT RECOVERY»(ref-174036-S22803969732005041500000) ).
  2. Remove the front bulkhead cover, and the hood latch (see «HOOD LATCH REPLACEMENT»(ref-176031-S13311559212005042900000) ).
  3. Remove the bolts and the radiator upper brackets.
  4. Remove the bolts, then disconnect the discharge line (A) and receiver line (B) from the condenser. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
  5. Remove the bolts, then remove the condenser by lifting it up. Be careful not to damage the radiator or the condenser fins when removing the condenser.
  6. Install the condenser in the reverse order of removal, and note these items: If you're installing a new condenser, add refrigerant oil (DENSO ND-OIL 8, see «A/C REFRIGERANT OIL REPLACEMENT»(ref-174036-S21140871522005041500000) ). Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage. Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption. Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately. Be careful not to damage the radiator or the condenser fins when installing the condenser. Charge the system (see «SYSTEM CHARGING»(ref-174036-S42278027222005041500000) ).

Scheme 118

Scheme 118: Receiver/Dryer Desiccant Replacement
  1. Remove the condenser (see «CONDENSER REPLACEMENT»(ref-174036-S15874933162005041500000) ).
  2. Remove the cap (A) from the bottom of the condenser, then remove the O-rings (B), the filter (C) and the desiccant (D).
  3. Install the desiccant in the reverse order of removal, and note these items: Replace the O-rings with new ones, and apply a thin coat of refrigerant oil (DENSO ND-OIL 8) before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.