A/C Compressor Belt Pulley
A/C Compressor Belt Pulley
• At start of the production, 4 and 6 cylinder engines had A/C compressors manufactured by "Denso" (type "6 SEU 14") installed. Depending on engine and period of production, A/C compressors from other manufacturers or other versions may be installed at a later time. Refer to Electronic Parts Catalog (ETKA).
• You can remove and re-install the A/C compressor in vehicles with a 4 cylinder engine. The 4 cylinder compressor can be removed and installed at the bracket without opening the refrigerant lines. Refer to => [ A/C Compressor Removing from Bracket ] A/C Compressor Removing From Bracket.
• For vehicles 6 cylinders gasoline engines, the A/C compressor can be disconnected and removed from the bracket only if the refrigerant circuit is open. Refer to => [ A/C Compressor ] A/C Compressor.
Preparation for Replacement
- Turn off the ignition.
- Remove the front noise insulation.
- Mark the direction of the operation of the ribbed belt (always refer to the Repair Manual for the routing of the ribbed belt for each engine).
- Release the tension on the ribbed belt and then remove it.
• Mark direction of rotation of ribbed belt using chalk or felt-tip marker before removing. Running a used belt in the opposite direction could destroy it.
Removing
• Observe notes on replacing belt pulley - E -. Refer to => [ Belt Pulley without A/C Clutch Overview ] Belt Pulley Without A/C Clutch Overview.
• The belt pulley is made of plastic and is sensitive to impact, therefore handle it with especial care.
• If the drive plate - C - overload protection activates, rotate the pulley - E - using the outer part of the drive plate - C - so that the compressor shaft - B - and the hexagon head on the drive plate - D - (inner part of the drive plate - C -) do not rotate.
- Remove the cap - A -.
- Hold the A/C compressor input shaft - B - for example, with a 7 mm socket or wrench and turn the drive plate - C - together with the pulley - E - in the direction of the arrow - arrow -.
• The torque to drive the A/C compressor is transferred to the drive plate - C - via the threaded connection. If, while the A/C compressor is working, the drive plate - C - was attached to the A/C compressor shaft so tight, that it cannot be loosened then the A/C compressor must be replaced.
- Remove the drive plate - C -.
- Remove the circlip - A -.
- Remove the pulley - B -.
Installing
• Replace circlip - A -.
Clean A/C compressor flange before installing pulley - B -.
When installing circlip - A -, note that it cannot be bent open more than is necessary for installation.
- Install the pulley - B -.
- Insert circlip - A - on correct side, the side with beveled insertion edge - C - faces away from A/C compressor (install flat side facing A/C compressor).
- Clean the compressor shaft thread.
• The thread of the new drive plate has already been greased with a specific amount of a grease by the manufacturer.
- When installing drive plate, coat the rubber element - D - lightly with, for example, tire mounting paste or soap solution (as sliding compound).
- Insert rubber element - D - in belt pulley - B - according to illustration.
- Press the drive plate rubber element - C - far enough into the pulley - E - until the drive plate - C - until it contacts A/C compressor shaft - B -.
- Attach the drive plate - C - to the compressor shaft - B - by turning it contrary to the direction of the arrow - arrow -.
- Hold the A/C compressor input shaft - B - with a 7 mm socket or wrench and turn the drive plate - C - together with the belt pulley - E - opposite the direction of the arrow - arrow - (tightening specification 30 Nm).