GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Timing Belt And Cover

Print

inspection



Inspect both sides of the timing belt. Replace the belt with a new one if any of the following conditions exist:



Hardening of the rubber-back side is glossy without resilience and leaves no indentation when pressed with a fingernail
 
Cracks on the rubber backing
 
Cracks or peeling of the canvas backing
 
Cracks on rib root
 
Cracks on belt sides
 
Missing teeth or chunks of teeth
 
Abnormal wear of belt sides-the sides are normal if they are sharp, as if cut by a knife.
 



Click image to see an enlarged view

Fig. Check for premature parting of the belt



Click image to see an enlarged view

Fig. Check if the teeth are cracked or damaged



Click image to see an enlarged view

Fig. Look for noticeable cracks or wear on the belt face



Click image to see an enlarged view

Fig. You may only have damage on one side of the belt; if so, the guide could be the culprit



Click image to see an enlarged view

Fig. Foreign materials can get in between the teeth and cause damage



Click image to see an enlarged view

Fig. Inspect the timing belt for cracks, fraying, glazing, or damage of any kind



Click image to see an enlarged view

Fig. Damage on only one side of the timing belt may indicate a faulty guide



Click image to see an enlarged view

Fig. ALWAYS replace the timing belt at the interval specified by the manufacturer

REMOVAL & INSTALLATION



3.0L Engine

NOTE
Some special tools are required to perform this procedure. It will be necessary to use a Timing belt alignment kit (J 42069) and a Crank hub Torx® socket (J 42098).

  1. Loosen the water pump pulley bolts and the power steering pump bolts.
  2.  
  3. Remove the belt from the tensioner by using a using a wrench on the center bolt of the tensioner pulley and rotating downward, and remove the belt from the accessory drive pulleys.
  4.  
  5. Remove the belt tensioner bolts, and the belt tensioner from the engine.
  6.  
  7. Remove the power steering, the water pump pulley bolts, and the pulleys.
  8.  
  9. Unbolt the timing belt cover bolts and remove the front timing belt cover.
  10.  
  11. Rotate the crankshaft counter-clockwise to 60 ° Before Top Dead Center (BTDC).
    1. The alignment marks on the camshaft gears must align with the corresponding notches on the rear timing belt cover.
    2.  
    3. Ensure that the alignment of the crankshaft is not 180° off.
    4.  

  12.  
  13. Install special tools J 42069-10 to the crankshaft drive gear with the knurled bolt.
    1. Carefully turn the crankshaft in the engine rotational direction (clock-wise) with special tool J 42098 until the lever of special tool J 42069-10 firmly contacts the water pump pulley flange.
    2.  
    3. Secure the moveable lever of the tool to the water pump pulley flange.
    4.  

  14.  
  15. Install special tool J 42069-1 and J 42069-2 to lock the camshaft gears.
    1. J 42069-1 is red in color and should be installed between camshaft gears 1 and 2.
    2.  
    3. J 42069-2 is green in color and should be installed between camshaft gears 3 and 4.
    4.  

  16.  


NOTE
If J 42069-1 or 2 does not fit into the teeth of the camshaft gears, it may be necessary to loosen the relevant timing belt idler pulley and turn the eccentric until J 42069-1 or 2 can be inserted. Then re-tighten the applicable idler pulley to 30 ft. lbs. (40 Nm).

  1. Loosen the timing belt tensioner and remove the timing belt.
  2.  
  3. Turn the crankshaft counter clock-wise with J 42098 to 60°(BTDC) to prevent the possibility of piston/valve contact.
  4.  

To install:

  1. Install the timing belt.
    1. Start at the crankshaft pulley.
    2.  
    3. Install the timing belt with a double dash (TDC) mark on the belt aligned with the marks on the oil pump and belt drive gear.
    4.  
    5. Pinch the belt with special tool J 42069-30 to prevent the splines from jumping.
    6.  

  2.  
  3. Route the timing belt through the idler pulley for camshafts 3 & 4 then route the timing belt through the camshaft gears 3 & 4.
    1. Ensure the dash marks on the timing belt align with marks on the camshaft gears and the notches on the rear timing belt cover.
    2.  
    3. If necessary, loosen timing belt idler pulley or move the cam gears slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    4.  
    5. Tighten the idler pulley locking bolt until snug. The idler pulley bolt will be tightened to specifications after the final adjustments are made.
    6.  

  4.  


NOTE
Timing belt deflection between the camshaft gears number 4 and the idler pulley for camshafts 3 & 4, must be no more than 0.4 inch (1 CM.).

  1. If necessary, adjust the timing belt deflection by turning the timing bolt idler pulley eccentric, for camshafts 3 & 4, counter-clockwise with the special tool J 42069-40, or equivalent.
  2.  

  1. Route the timing belt through the timing belt idler pulley for camshafts 1 & 2 then route the timing belt through camshaft gears 1 & 2.
    1. Ensure the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
    2.  
    3. If necessary, loosen the timing belt idler pulley or move the cam gear slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    4.  
    5. Apply sufficient tension to the timing belt to prevent it from slipping off the gears by turning the timing belt idler pulley eccentric for camshafts 1 & 2 counter-clockwise with special tool J 42069-40 or equivalent.
    6.  
    7. Tighten the idler pulley locking bolt until snug. Idler pulley bolt will be tightened to specifications after final adjustments are made.
    8.  

  2.  
  3. Route the timing belt through the timing belt tensioner.
  4.  
  5. Apply initial tension to the timing belt by turning tensioner eccentric counter-clockwise, with a 5 mm hex wrench, until marks are set.
    1. Tighten the belt tensioner-locking nut to 15 ft. lbs. (20 Nm).
    2.  

  6.  
  7. Adjust the timing belt.
    1. The timing belt must be properly adjusted or engine damage may occur. Do not continue with the engine assembly procedure until the timing belt is properly adjusted.
    2.  

  8.  
  9. Install the timing belt cover. Tighten the timing belt cover bolts to 71 inch lbs. (8 Nm).
  10.  
  11. Install the power steering pump pulley and bolts. Install the water pump pulley and bolts.
    1. Tighten the power steering pump pulley bolts and the water pump pulley bolts after the serpentine drive belt is installed.
    2.  

  12.  

 
label.common.footer.alt.autozoneLogo