Service manual

G420F(FE) Service Manual Chapter 3. Engine Mechanical System 92
Assembly
1. After checking the sensor wheel for damage and
crack, replace it if necessary.
2. Inspect the clearance between the sensor wheel
and crank position sensor.
Clearance between sensor wheel
and crank position sensor
0.5 ~ 1.1mm
If the clearance is out of specified values, check the
sensor wheel for balancing and the crank position
sensor for installation and replace those if necessary.
CAUTION
Sensor wheel as one of the electronic control
affects performance if deformed or damaged, so
be careful when handling it.
3. Install the upper main bearing to the cylinder
block. When reusing the main bearing, refer to the
identification mark during assembly.
4. Install the bearing shaft and apply engine oil to
the journal and pin.
5. Install the bearing cap and tighten the cap bolt to
the specified torque from the center in order.
(Tighten the bearing cap bolts to the specified
torque by tightening bolts step by step 2-3 times
equally)
Main bearing cap bolt
2.7 ~ 3.3kg·m+
(60°~ 65°)
Connecting rod cap bolt 5.0 ~ 5.3kg·m
When installing the cap, proper number of cap
should be installed as well as arrow mark should be
directed to the engine crank pulley.
6. Check that the crankshaft for free rotation and
proper clearance between the center main
bearing thrust flange and connecting rod big-end
bearing.
Crankshaft end-play 0.06 ~ 0.260mm