1D-92 Engine Mechanical: For J20 Engine
1st Timing Chain and Chain Tensioner Removal
and Installation
S5JB0A1426027
CAUTION
!
After timing chain is removed, never turn
crankshaft and camshafts independently
more than its allowable turning range
described referring to “2nd Timing Chain and
Chain Tensioner Removal and Installation:
For J20 Engine”.
If turned, interference may occur between
piston and valves and valves themselves,
and parts related to piston and valves may be
damaged.
Removal
1) Remove 2nd timing chain. Refer to “2nd Timing
Chain and Chain Tensioner Removal and
Installation: For J20 Engine” for removal.
2) Remove timing chain guide No.1 (1).
3) Remove timing chain tensioner adjuster No.1 (2).
4) Remove timing chain tensioner (3).
5) Remove idler sprocket (4) and 1st timing chain (5).
6) Remove crankshaft timing sprocket (6).
Installation
1) Install crankshaft timing sprocket (2) as shown in
figure.
2) Check that match mark (1) on crankshaft timing
sprocket is in match with timing mark (2) on lower
crankcase.
3) Apply oil to bush of idler sprocket (1).
4) Install idler sprocket and sprocket shaft.
5) Install 1st timing chain by aligning dark blue plate (4)
of 1st timing chain (3) and match mark (2) on idler
sprocket (1).
6) Bring gold plate (4) of 1st timing chain (3) into match
with match mark (2) on crankshaft timing sprocket
(1).
7) Apply engine oil to sliding surface of timing chain
tensioner (1) and then install it as shown in figure.
Tighten tensioner nut to specified torque.
Tightening torque
Timing chain tensioner nut (a): 25 N·m (2.5 kgf-
m, 18.0 lb-ft)
1. Crankshaft
3. Cylinder block
I4RH01140029-01
I2RH01140083-01
I2RH01140082-01
I2RH01140084-01
I2RH01140085-01
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