Timing Chain and Sprockets Installation

Tools Required 

J 41665  Crankshaft Balancer and Sprocket Installer

1. Install the key into the crankshaft keyway, if previously removed.
   Fig 1: Installing Key Into Crankshaft Keyway

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2. Tap the key (1) into the keyway until both ends of the key bottom onto the crankshaft.
   Fig 2: Tapping Key Into Keyway Until Both Ends Of Key Bottom Onto Crankshaft

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3. Install the crankshaft sprocket onto the front of the crankshaft. Align the crankshaft key with the crankshaft sprocket keyway.
   Fig 3: Installing Crankshaft Sprocket Onto Front Of Crankshaft

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4. Use the J 41665  in order to install the crankshaft sprocket.

   Install the sprocket onto the crankshaft until fully seated against the crankshaft flange.

5. Rotate the crankshaft sprocket until the alignment mark is in the 12 o'clock position.
   Fig 4: Installing Crankshaft Sprocket Using J 41665

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   Important: 

   • Properly locate the camshaft sprocket locating pin with the camshaft sprocket alignment hole.
   • The sprocket teeth and timing chain must mesh.
   • The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.

     Locate the camshaft sprocket alignment mark in the 6 o'clock position.

6. Install the camshaft sprocket and timing chain.
   Fig 5: Installing Camshaft Sprocket & Timing Chain

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7. If necessary, rotate the camshaft or crankshaft sprockets in order to align the timing marks.
   NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
8. Install the camshaft sprocket bolts.

   Tighten 

   Tighten the camshaft sprocket bolts to 35 N.m (26 lb ft).

   Fig 6: Installing Camshaft Sprocket Bolts

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