Inspect Camshaft - Toyota 2GR-FE Manual

EM–88
CORRECT
Low Pressure
Chamber
High Pressure
EM
Chamber
2GR-FE ENGINE MECHANICAL – ENGINE UNIT
INCORRECT
SST
Taper Part
Plunger
Check Ball
High Pressure
Chamber
SST
A109630E01
A120669
A109632
(b) Insert the SST's tip into the lash adjuster's plunger
and use the tip to press down on the check ball
inside the plunger.
SST 09276-75010
(c) Squeeze the SST and lash adjuster together to
move the plunger up and down 5 to 6 times.
(d) Check the movement of the plunger and bleed the
air.
OK:
Plunger moves up and down.
NOTICE:
When bleeding air from the high-pressure
chamber, make sure that the tip of the SST is
actually pressing the check ball as shown in the
illustration. If the check ball is not pressed, air
will not bleed.
(e) After bleeding the air, remove the SST. Then try to
quickly and firmly press the plunger with a finger.
OK:
Plunger is very difficult to move.
If the result is not as specified, replace the lash
adjuster.
3.

INSPECT CAMSHAFT

(a) Inspect the camshaft for runout.
(1) Place the camshaft on V-blocks.
(2) Using a dial indicator, measure the circle runout
at the center journal.
Maximum circle runout:
0.04 mm (0.0016 in.)
If the circle runout is greater than the
maximum, replace the camshaft.
HINT:
Check the oil clearance after replacing the
camshaft.
(b) Using a micrometer, measure the cam lobe height.
Standard cam lobe height
Item
Intake camshaft 44.316 to 44.416 mm (1.7447 to 1.7487 in.)
Exhaust camshaft 44.262 to 44.362 mm (1.7426 to 1.7465 in.)
Maximum cam lobe height
Item
Intake camshaft
Exhaust camshaft
Specification
Specification
44.166 mm (1.7388 in.)
44.112 mm (1.7367 in.)