Toyota Tundra (2015 year). Manual — part 1737
(p) Remove the flange bolt and camshaft timing gear.
6. INSPECT CAMSHAFT TIMING EXHAUST GEAR
(a) Install the camshaft bearing cap
.
HINT:
Only install the exhaust camshaft.
(b) Install the camshaft housing
.
bolt.
Torque:
100 N·m {1020 kgf·cm, 74ft·lbf}
3UR-FBE ENGINE MECHANICAL: ENGINE UNIT: INSPECTION; ...
(g) Remove the camshaft bearing cap
.
(h) Check the camshaft timing exhaust gear lock.
(1) Make sure that the camshaft timing exhaust gear is locked.
(i) Release the lock pin.
air pressure to the two broken paths (the advance side
path and the retard side path).
NOTICE:
(4) Check that the camshaft timing exhaust gear turns in the
retard direction when reducing the air pressure applied to
the advance side path.
HINT:
The lock pin is released and the camshaft timing exhaust gear
turns in the retard direction.
(5) When the camshaft timing exhaust gear moves to the most retarded position, release the air
pressure from the advance side path, and then release the air pressure from the retard side path.
NOTICE:
3UR-FBE ENGINE MECHANICAL: ENGINE UNIT: INSPECTION; ...
(j) Check for smooth rotation.
(1) Turn the camshaft timing exhaust gear within its movable range (18.5°) 2 or 3 times, but do not
turn it to the most advanced position. Make sure that the gear turns smoothly.
NOTICE:
When the air pressure is released from the advance side path and then from the retard side path, the
gear automatically returns to the most advanced position due to the advance assist spring operation,
and locks. Gradually release the air pressure from the retard side path before performing the smooth
rotation check.
(k) Check the lock at the most advanced position.
(1) Make sure that the camshaft timing exhaust gear is locked at the most advanced position.
(l) Install the camshaft bearing cap
.
HINT:
Only install the exhaust camshaft.
(m) Install the camshaft housing
.
(o) Remove the camshaft bearing cap
.
(p) Remove the flange bolt and camshaft timing exhaust gear.
7. INSPECT NO. 1 CHAIN SUB-ASSEMBLY
136.9 mm (5.39 in.)
HINT:
Perform the measurement at 3 random places.
If the elongation is more than the maximum, replace the
chain.
3UR-FBE ENGINE MECHANICAL: ENGINE UNIT: INSPECTION; ...
8. INSPECT NO. 2 CHAIN SUB-ASSEMBLY
137.6 mm (5.42 in.)
HINT:
Perform the measurement at 3 random places.
If the elongation is more than the maximum, replace the
chain.
9. INSPECT CRANKSHAFT TIMING SPROCKET RH
(a) Wrap the chain around the sprocket.
(b) Using a vernier caliper, measure the sprocket diameter with
the chain.
Minimum sprocket diameter (with chain):
61.4 mm (2.42 in.)
HINT:
The vernier caliper must contact the chain rollers for the
measurement.
If the diameter is less than the minimum, replace the chain
and sprocket.
10. INSPECT CRANKSHAFT TIMING SPROCKET LH
(a) Wrap the chain around the sprocket.
(b) Using a vernier caliper, measure the sprocket diameter with
the chain.
Minimum sprocket diameter (with chain):
61.4 mm (2.42 in.)
HINT:
The vernier caliper must contact the chain rollers for the
measurement.
If the diameter is less than the minimum, replace the chain
and sprocket.
11. INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY
(a) Move the stopper plate upward to release the lock. Push the
plunger and check that it moves smoothly.
If necessary, replace the chain tensioner.
3UR-FBE ENGINE MECHANICAL: ENGINE UNIT: INSPECTION; ...
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