Removal Procedure
Tools Required
J 22888-20A Crankshaft
Sprocket Remover.
- Remove the engine front cover. Refer to
Engine Front Cover Replacement
- Rotate the crankshaft until the number 1 piston is at Top Dead
Center (TDC) of the compression stroke.
Important: Make sure the dot on the timing chain sprockets line up.
- Remove the timing chain tensioner bolts.
- Remove the timing chain, tensioner and camshaft sprocket at the same
time.
- Remove the crankshaft sprocket. Refer to J 5590
.
Installation Procedure
Tools Required
J 5590 Crankshaft
Gear Installer.
- Install the crankshaft sprocket using J 5590
.
Important: Make sure that the crankshaft sprocket is seated against the crankshaft.
- Install the timing chain and install the timing chain tensioner.
- Compress the timing chain tensioner spring.
- Insert a cotter pin or a nail into the hole in the tensioner to
retain the timing chain tensioner shoe.
- Install the timing chain tensioner. Do not tighten the timing chain
tensioner bolts.
- Align the crankshaft timing marks with the tab on the timing chain tensioner.
- Align the camshaft timing mark with the tab on the timing chain
tensioner.
- Install the camshaft sprocket and install the timing chain.
Tighten
- Tighten the timing chain tensioner bolts to 24 N·m
(18 lb ft).
- Tighten the camshaft sprocket bolt to 130 N·m (96 lb ft).
Refer to
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
in General Information.
- Remove the cotter pin or nail from the hole
in the timing chain tensioner.
- Install the engine front cover and a new gasket. Refer to
Engine Front Cover Replacement
.