AutoZone 1990 Honda Accord 2.2L FI 4cyl | Repair Guides | Engine & Engine Overhaul | Engine Mechanical | Timing Chain Cover And Seal | AutoZone.com

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    Nissan Maxima 1993-1998 Repair Guide

    Timing Chain Cover and Seal

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    REMOVAL & INSTALLATION



    VE30DE Engine

    The timing chain (front) cover is an integral part of the oil pump housing. The cylinder heads and the oil pan must be removed in order for the timing chain cover to be removed. Refer to the Timing Chain procedure in this section for removal of the timing chain cover.

    The front crankshaft seal can be replaced without removing the timing chain cover.

    1. Using a small prybar, pry the oil seal from the timing chain cover; be careful not to scratch the timing chain cover sealing surface.
    2.  
    3. Using a new oil seal, lubricate it with engine oil and press it into the timing chain cover.
    4.  
    5. When installing the timing chain cover; be careful not to tear the oil seal's sealing lip on the crankshaft.
    6.  

    VQ30DE Engine

    See Figures 1, 2, 3 and 4

    The engine mount on the front (passenger side) of the engine and the lower and upper oil pans must be removed to remove the timing chain cover. Refer to the Oil Pan Procedure and the Timing Chain procedure for more information.

    1. Raise and safely support the front of the vehicle securely on jackstands.
    2.  
    3. Drain the engine oil and coolant from the engine.
    4.  
    5. Remove the splash shields from under the vehicle.
    6.  
    7. Remove the drive belts and the idler pulley bracket.
    8.  
    9. Remove the power steering pump.
    10.  
    11. Remove the camshaft and crankshaft position sensors.
    12.  
    13. Remove the intake manifold collector.
    14.  
    15. Remove the crankshaft damper.
    16.  
    17. Remove the air conditioning compressor and bracket. Use safety wire to support it while it is unbolted from the engine.
    18.  



    Click image to see an enlarged view

    Fig. Fig. 1: Unbolt the A/C compressor bracket from the engine ...



    Click image to see an enlarged view

    Fig. Fig. 2: ... and use wire to support it while unbolted

    1. Remove the lower and upper oil pans.
    2.  
    3. Remove the water pump cover.
    4.  
    5. Remove the timing chain cover bolts, in the sequence shown in the illustration.
    6.  



    Click image to see an enlarged view

    Fig. Fig. 3: Bolt loosening sequence for the front timing chain cover-VQ30DE engine

    1. Using the notch on the top of the timing chain case, insert a suitable tool and carefully separate the front timing chain cover from the rear cover.
    2.  
    3. Using a small prybar, pry the oil seal from the timing chain cover; be careful not to scratch the timing chain cover sealing surface.
    4.  
    5. Using a new oil seal, lubricate it with engine oil and press it into the timing chain cover so the seal is flush with the cover surface. Be sure to apply a small amount of grease to the inner lip of the seal upon installation of the cover.
    6.  

    To install:
    1. Clean the gasket material from the front and rear timing chain cases, including the bolt holes.
    2.  
    3. Apply liquid gasket to the timing chain cover.
    4.  
    5. Following the tightening sequence shown in the illustration, tighten the timing chain cover bolts to the specified torque.
    6.  



    Click image to see an enlarged view

    Fig. Fig. 4: Tightening sequence for the front timing chain cover-VQ30DE engine

    1. Apply liquid gasket to the water pump cover and install it to the front timing chain cover.
    2.  
    3. Install the upper and lower oil pans.
    4.  
    5. Install the exhaust header pipe.
    6.  
    7. Install the engine mount and bracket.
    8.  
    9. Install the center member assembly. Remove the engine from the hoist.
    10.  
    11. Install the crankshaft damper.
    12.  
    13. Install the crankshaft and camshaft position sensors.
    14.  
    15. Install the A/C compressor and bracket to the engine block.
    16.  
    17. Install the power steering pump.
    18.  
    19. Install the accessory drive belts and the idler pulley.
    20.  
    21. Fill the engine with the appropriate quantity of engine oil and coolant.
    22.  

     
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