Tools Required
J 45059 Torque Angle Meter
Removal Procedure
- Remove the engine front cover. Refer to
Engine Front Cover Replacement
.
- Align the timing marks on the sprockets
so that they are as close as possible.
- Remove the timing chain dampener bolt.
- Remove the timing chain dampener.
- Remove the camshaft sprocket bolt.
- Remove the camshaft sprocket and the timing
chain.
Important: If the sprocket does not come off easily, a light blow on the lower edge of
the sprocket with a plastic mallet should dislodge the sprocket.
- Remove the crankshaft sprocket.
- Remove the balance shaft drive gear in order
to access the camshaft thrust plate, if required.
- Remove the camshaft thrust plate bolts,
if required.
- Remove the camshaft thrust plate, if required.
- Remove the balance shaft driven gear bolt,
if required.
- Remove the balance shaft driven gear, if required.
- Clean and inspect all of the components for wear and/or damage. Refer
to
Camshaft Timing Chain and Sprocket Cleaning and Inspection
.
- If the pistons have been moved in the engine, use the following procedure:
14.1. | Turn the crankshaft so that the number one piston is at top dead center. |
14.2. | Turn the camshaft so that, with the sprocket temporarily installed, the
timing mark is straight down. |
Installation Procedure
- Install the balance shaft driven gear, if
required.
Notice: Refer to Fastener Notice in the Preface section.
Notice: This bolt is designed to permanently stretch when tightened, and therefore MUST be replaced anytime it is removed. The correct
part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.
- Prevent the balance shaft from rotating and install the balance shaft driven
gear bolt, if required.
Tighten
- Tighten the balance shaft driven gear bolt to 22 N·m (16 lb ft).
- Use theJ 45059
to rotate
the bolt an additional 70 degrees.
- Install the camshaft thrust plate, if required.
- Install the camshaft thrust plate bolts, if required.
Tighten
Tighten the bolts to 15 N·m (11 lb ft).
- Install the balance shaft drive gear.
- Align the timing marks on the balance shaft
drive gear and the balance shaft driven gear.
- Install the crankshaft sprocket.
- Install the timing chain and sprocket.
- Assemble the timing chain on the sprockets
with the timing marks as close together as possible.
- Install the camshaft sprocket bolt.
Tighten
- Tighten the bolt to 100 N·m (74 lb ft).
- Use theJ 45059
to rotate
the bolt an additional 90 degrees.
- Install the timing chain dampener.
- Install the timing chain dampener bolt.
Tighten
Tighten the bolt to 22 N·m (16 lb ft).
Important: Rotate the engine two revolutions and check the timing marks. Ensure that the
marks are aligned.
- Install the engine front cover. Refer to
Engine Front Cover Replacement
.