Sentra L4-2.0L (MR20DE) (2010)
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Drive Belt Tensioner: Service and Repair
DRIVE BELTS
Removal and Installation of Drive Belt Auto Tensioner
REMOVAL
CAUTION:
The complete auto-tensioner must be replaced as a unit, including the pulley.
1. Remove front air duct. See: Tune-up and Engine Performance Checks/Air Cleaner Housing/Air Cleaner Fresh Air Duct/Hose/Service and
Repair/Component.
2. Remove drive belt. See: Drive Belt/Service and Repair/Removal and Replacement/Removal And Installation.
3. Support the engine and remove the torque rod (RH), engine mounting insulator (RH) and engine mounting bracket (RH). See: Service and
Repair/Component.
4. Release the fixed drive belt auto-tensioner pulley.
5. Loosen bolt and remove drive belt auto-tensioner.
NOTE:
Use TORX socket (size T50).
6. Remove idler pulley and bracket (models without A/C).
CAUTION:
Do not loosen the auto-tensioner pulley bolt. (Do not turn it counterclockwise). If turned counter- clockwise, the complete auto-tensioner
must be replaced as a unit, including pulley.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
-
If there is damage greater than peeled paint, replace drive belt auto-tensioner units
-
Install the drive belt auto-tensioner carefully so not to damage the water pump pulley.
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Do not swap the pulley between the new and old auto-tensioner units