Question about 2001 BMW 330

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Serpentine belt routing

The idler pulley locked up and destroyed the serpentine belt. I replaced the idler and bought a new belt (6PK1538, effective length of 60.5") and installed it the way the belt manufacturer recommended it should go on. The previous problem mentioned seven (7) pulleys. I only have six (6): crankshaft, fan, alternator, power steering, idler and tensioner. A/C has a separate belt. When I installed the belt it wasn't tight enough and the idler is in close contact to the tensioner. I'm either not routing it properly or the spec for a 60.5 effective length belt is too long (incorrect).

Like most cars the belt routing diagram can be found on the fan shroud. Not on my car.

Can someone provide a sketch or diagram of the proper routing and is the 60.5" belt the right length for the six pulley system?

Much Thanks,
Dave

Posted by on

  • David Daley Feb 10, 2009

    Attention ewashmidas:



    The occasional dyslexia set in after tiring hour to repair the "B". I was routing to the tensioner off the power steering pump. The correct routing was a more difficult route but it worked very well. It might also have to do with the quart of blood I left all over the alternator and surrounding parts. Outstanding, thanks for the help.



    Best Regards,

    Dave

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Here you go.. I looked up the same belt you did, it should be right.

Serpentine belt routing - adecd3f.png

Posted on Feb 09, 2009

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Serpentine belt


Application:
With A/C


2.image

Kia_Sedona_2002-2006
Accessory Drive Belts

Print


Accessory Belt Routing



0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt routing-3.5L engine


0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Accessory serpentine belt (A) routing-3.8L engine


Inspection

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Rotate the auto tensioner clockwise to release tension, then remove the drive belt.

To install:
  1. Install drive belt (A). Route the belt over the components in the following order: Crankshaft pulley - A/C pulley - idler pulley - generator pulley - water pump pulley - P/S pump pulley - tensioner pulley.
  2. Rotate auto tensioner arm in the counter-clockwise moving auto tensioner pulley bolt with wrench.
  3. After putting belt on auto tensioner pulley, release the auto tensioner pulley slowly.

    0996b43f802319a9.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt routing-3.5L engine


    0996b43f8020700d.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Accessory serpentine belt (A) routing-3.8L engine


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