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    1996 Ford Aspire 1.3L EFI SOHC 4cyl

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    Ford Ranger/Bronco II 1983-1990 Repair Guide

    Rocker Arms/Shafts

    Print

    REMOVAL & INSTALLATION



    2.0L and 2.3L Engines

    See Figure 1



    Click image to see an enlarged view

    Fig. Fig. 1: A special lifter or spring collapsing tool is available to remove the cam followers

    1. Remove the valve cover.
    2.  
    3. Rotate the camshaft so that the base circle of the cam is against the follower you intend to remove.
    4.  
    5. Remove the retaining spring from the cam follower, if so equipped.
    6.  
    7. Using special tool T74P-6565-B or a valve spring compressor tool, collapse the lash adjuster and/or depress the valve spring, as necessary, and slide the cam follower over the lash adjuster and out from under the camshaft.
    8.  
    9. Installation is the reverse of removal. After any procedure requiring removal of the rocker arms, each lash adjuster must be fully collapsed after assembly, then released. This must be done before the camshaft is turned.
    10.  

    2.2L Diesel Engine
    1. Remove the valve cover.
    2.  
    3. Remove the bolts attaching the rocker shaft to the cylinder head and remove the rocker shaft.
    4.  
    5. Remove the pushrods, if necessary.
    6.  

    Note position of pushrods so they may be returned to their original positions.

    To install:
    1. Install the pushrods, if removed. The ball end goes toward tappet.
    2.  
    3. Position the rocker shaft on the cylinder head and install the retaining bolts.
    4.  

    Before tightening rocker shaft bolts, make sure the rocker arms are fully seated in the pushrod cups.

    1. Tighten the rocker shaft bolts alternately, two to three turns at a time, working from the center to the ends until all rocker shaft brackets are seated.
    2.  
    3. Adjust valve rocker arms as described in Engine Performance & Tune-up under Valve Lash Adjustment.
    4.  
    5. Install the valve cover.
    6.  
    7. Connect the heater tube assembly to valve cover.
    8.  
    9. Run the engine and check for oil leaks.
    10.  

    2.3L Diesel Engine

    See Figures 2 and 3



    Click image to see an enlarged view

    Fig. Fig. 2: Rocker arm oil hole positioning



    Click image to see an enlarged view

    Fig. Fig. 3: When installing the rocker arm shaft on the 2.3L diesel engine, tighten the bolts evenly until the shaft is fully seated

    1. Remove the valve cover.
    2.  
    3. Remove the bolts attaching the rocker shaft to the cylinder head, 1 turn at a time from the front to the rear and remove the rocker shaft.
    4.  

    To install:
    1. Position the rocker shaft on the cylinder head.
    2.  

    Be certain the end of the rocker shaft with the single oil hole is toward the front of the engine. Also, ensure the rocker shaft is installed with the oil holes DOWN.

    1. Install the rocker shaft retaining bolts and tighten one turn at a time from front to rear, repeating the sequence until all the bolts are seated. Tighten the bolts to 25-28 ft. lbs.
    2.  
    3. Adjust valve rocker arms as described in Engine Performance & Tune-up under Valve Lash Adjustment.
    4.  
    5. Install the valve cover.
    6.  
    7. Run the engine and check for oil leaks.
    8.  

    2.8L and 2.9L Engines

    See Figures 4 and 5



    Click image to see an enlarged view

    Fig. Fig. 4: After loosening the rocker shaft retaining bolts, lift the shaft assembly from the cylinder head

    1. Remove the valve rocker arm covers following the procedure given above.
    2.  
    3. Remove the rocker arm shaft stand attaching bolts by loosening the bolts two turns at a time, in sequence (from the end of shaft to middle shaft).
    4.  
    5. Lift off the rocker arm and shaft assembly and the oil baffle.
    6.  
    7. To disassemble the shafts:
      1. Remove the spring washer and pin from each end of the valve rocker arm shaft.
      2.  
      3. Slide the rocker arms, springs and rocker arm shaft supports off the shaft. Be sure to mark the parts for re-assembly in the same locations.
      4.  
      5. If it is necessary to remove the plugs from each end of the shaft, drill or pierce the plug on one end. Use a steel rod to knock out the plug on the opposite end. Working from the open end, knock out the remaining plug.
      6.  

    8.  

    To install:
    1. To assemble the shafts:
      1. The oil holes in the rocker arm shaft must point down when the shaft is installed. This position of the shaft can be recognized by a notch on the front face of the shaft.
      2.  
      3. If the plugs were removed from the shaft, use a blunt tool and install a plug, cup side out, in each end of the shaft.
      4.  
      5. Install a spring washer and pin on one end of the shaft, coat the rocker arm shaft with heavy engine oil and install the parts in the same sequence they were removed.
      6.  

    2.  
    3. Loosen the valve lash adjusting screws a few turns. Apply the engine oil to the assembly to provide the initial lubrication.
    4.  
    5. Install the oil baffle and rocker arm shaft assembly to the cylinder head and guide adjusting screws on to the pushrods.
    6.  



    Click image to see an enlarged view

    Fig. Fig. 5: When installing the rocker shaft, ensure that the notches face downward and all of the pushrods are seated in the rockers

    1. Install and tighten rocker arm stand attaching bolts to 43-50 ft. lbs., two turns at a time, in sequence (from middle of shaft to the end of shaft). Adjust valve lash to cold specified setting.
    2.  
    3. Adjust the valve lash to the cold specified setting. refer to Engine Performance & Tune-up under Valve Lash Adjustment for adjustment procedures.
    4.  
    5. Install the rocker arm covers.
    6.  

    4.0L Engine

    See Figure 6



    Click image to see an enlarged view

    Fig. Fig. 6: Exploded view of the rocker arm shafts on the 4.0L engine

    1. Remove the rocker cover.
    2.  
    3. Loosen the rocker arm shaft stand bolts, 2 turns at a time, front-to-rear, until they are free.
    4.  
    5. Lift off the rocker arm shaft assembly. If the pushrods are to be removed, tag them, since they have to be installed in their original positions.
    6.  
    7. Installation is the reverse of removal procedure. Tighten the rocker arm shaft bolts, 2 turns at a time, front to rear, until the specified torque of 52 ft. lbs. is reached. Install the rocker cover.
    8.  

     
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