Description and principle of operation of the accessory drive

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Vehicles with 1.6L Zetec-SE/1.4L engine without air conditioning system




Pos.Spare Part NoName
1-Accessory drive belt
2-intermediate pulley
3-Alternator Pulley
4-Power steering pump pulley
5-crankshaft pulley
6-Water pump pulley
7-Belt tensioner


Vehicles with 1.6L Zetec-SE/1.4L engine with air conditioning system




Pos.Spare Part NoName
1-Accessory drive belt
2-intermediate pulley
3-Alternator Pulley
4-A/C Compressor Pulley
5-crankshaft pulley
6-Water pump pulley
7-Belt tensioner
8-Power steering pump pulley


Vehicles with 1.6L Duratec engine




Pos.Spare Part NoName
1-Accessory belt tensioner.
2-Power steering pump pulley
3-Alternator Pulley
4-A/C Compressor Pulley
5-intermediate pulley
6-crankshaft pulley
7-Water pump pulley
8-Accessory drive belt



Vehicles with 1.8L/2.0L/1.6L Zetec-E engine without air conditioning system




Pos.Spare Part NoName
1-Alternator Pulley
2-intermediate pulley
3-Power steering pump pulley
4-Accessory drive belt
5-crankshaft pulley
6-Water pump pulley
7-Belt tensioner


Vehicles with 1.8L/2.0L/1.6L Zetec-E engine with air conditioning system




Pos.Spare Part NoName
1-Alternator Pulley
2-intermediate pulley
3-Power steering pump pulley
4-Accessory drive belt
5-A/C Compressor Pulley
6-crankshaft pulley
7-Water pump pulley
8-Belt tensioner


Belt tensioner




Pos.Spare Part NoName
Vehicles with 1.8L Diesel engine without air conditioning system 1-Power steering pump pulley
2-Water pump pulley
3-Accessory drive belt
4-Alternator Pulley
5-intermediate pulley
6-crankshaft pulley
7-Belt tensioner



Vehicles with 1.8L Diesel engine with air conditioning system




Pos.Spare Part NoName
1-Power steering pump pulley
2-Water pump pulley
3-Accessory drive belt
4-Alternator Pulley
5-A/C Compressor Pulley
6-intermediate pulley
7-crankshaft pulley
8-Belt tensioner


Automatic belt tensioners are calibrated for the specific accessory drive system to provide the correct amount of belt tension. There is no need to check the correct tension of the belt until the tensioner spring or damping band breaks or other mechanical elements of the tensioner fail.

Vehicles without accessory drive belt tensioner




Pos.Spare Part NoName
1-Water pump pulley
2-Alternator Pulley
3-Accessory drive belt
4-Power steering pump pulley
5-crankshaft pulley


The accessory drive belt is made from a material that stretches and shrinks slightly to allow for self-tensioning. Due to the fact that a constant belt tension is maintained, there is no need for a tensioner. It is important to use the correct procedure to remove and install the drive belt. For more information, refer to the Accessory Drive Belt - Vehicles Without Accessory Drive Belt Tensioner chapter in this section.







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