Chrysler Concorde/Intrepid/LHS/New Yorker/Vision 1993-1997

Belts

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INSPECTION



See Figures 1, 2, 3, 4 and 5

Check the drive belts every 15,000 miles (24,000 km) or once a year, for evidence of wear such as cracking, fraying, and incorrect tension. On the serpentine belts (generator/power steering pump belt), small cracks that run across the ribbed surface of the belt from rib to rib are considered normal and not a reason to replace the belt. However, cracks running along a rib (not across) are not normal. Any belt with cracks running along a rib must be replaced.


WARNING
Belts must be checked with the engine not running.



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Fig. Fig. 1: There are typically 3 types of accessory drive belts found on vehicles today



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Fig. Fig. 2: An example of a healthy drive belt



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Fig. Fig. 3: Deep cracks in this belt will cause flex, building up heat that will eventually lead to belt failure



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Fig. Fig. 4: The cover of this belt is worn, exposing the critical reinforcing cords to excessive wear



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Fig. Fig. 5: Installing too wide a belt can result in serious belt wear and/or breakage

The belt can be adjusted by measuring the deflection of the belt at the mid-point between two pulleys under a ten pound push or pull. A small spring scale can be used to establish the ten pound belt load.

Belt deflection under a ten pound push or pull should be between 0.25-0.31 in. (6-8mm) at the location between the two furthest-spaced pulleys. Note that "deflection'' is not play, but the ability of the belt, under actual tension, to stretch slightly and give.

Although it is generally easier on the component to have the belt too loose than too tight, a very loose belt may place a high impact load on a bearing due to the whipping or snapping action of the belt. A belt that is slightly loose may slip, especially when component loads are high. This slippage may be hard to identify. For example, the generator belt may run okay during the day, and then slip at night when headlights are turned on. Slipping belts wear quickly not only due to the direct effect of slippage but also because of the heat the slippage generates. Extreme slippage may even cause a belt to burn. A very smooth, glazed appearance on the belt's sides, as opposed to the obvious pattern of a fabric cover, indicates that the belt has been slipping.

ADJUSTMENT



See Figures 6, 7 and 8


WARNING
Be careful not to overtighten the drive belts, as this will damage the driven component's bearings.

A belt tension gauge C-4162 is used on the LH models. When adjusting the belts, be sure to keep them at the specified tensions. Release the tension by loosening the tensioner pulley nut and adjustment bolt. Reverse the procedure to install and tighten the belt to specific tension.



Used belt-120 lbs. (534 N)
 
New belt-140-160 lbs. (623-711 N)
 



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Fig. Fig. 6: Accessary drive belt routing and adjusting bolt locations-3.3L engine



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Fig. Fig. 7: Accessary drive belt routing and adjusting bolt locations-3.5L engine



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Fig. Fig. 8: Drive belt adjusting bolt location-3.3L engine

REMOVAL & INSTALLATION



Except Air Conditioning Belt
3.3L ENGINE

See Figure 9

The serpentine alternator/power steering and water pump belt has an adjusting screw on the alternator mounting bracket to maintain the proper belt tension. Release the tension by loosening the alternator mounting bolt (A) and adjusting bolt locknut (B), then loosen the adjusting bolt. Reverse this procedure to install and tighten to specifications.



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Fig. Fig. 9: Drive belt routing decal-3.3L engine

3.5L ENGINE

See Figure 10

The alternator/power steering belt has an adjustable pulley located on the timing belt cover to maintain the proper belt tension. To remove or install this belt, release the tension by loosening the tensioner pulley nut and adjustment bolt. Reverser the procedure to install and tighten the belt to specifications.



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Fig. Fig. 10: Drive belt routing decal-3.5L engine

Air Conditioning Belt
  1. Remove the alternator/power steering and water pump drive belt to gain access to the air conditioning belt.
  2.  
  3. Loosen the tensioner pulley locknut, then turn the adjusting screw to raise or lower the tensioner pulley assembly. Remove the belt.
  4.  

To install:
  1. Install the belt.
  2.  
  3. To adjust the belt, loosen the tensioner pulley nut and adjust the belt tension by tightening the adjusting screw. Tighten the pulley nut to 40 ft. lbs. (54 Nm) after adjustment.
  4.  
  5. Install the alternator/power steering and water pump drive belt and adjust.
  6.  
  7. Start the engine and check for proper belt alignment and any abnormal noise.
  8.  

 
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