Inspect Camshaft And Bearing Caps; Inspect Camshaft Oil Clearance - Toyota 22R-E Service Manual

EG1–28
ENGINE – ENGINE MECHANICAL

14. INSPECT CAMSHAFT AND BEARING CAPS

(a) Place the cam shaft on V – blocks and , using a dial
indicator, measure the circle runout at the center
journal.
Maximum circle runout: 0.2 mm (0.008 in.)
If the circle runout is greater than maximum, replace
the camshaft.
(b) Using a micrometer, measure the cam lobe height.
Standard cam lobe height:
Intake 42.63 – 42.72 mm (1.6783 – 1.6818 in.)
Exhaust 42.69 – 42.78 mm (1.6807 – 1.6842 in.)
Maximum cam lobe height:
Intake 42.25 mm (1.6634 in.)
Exhaust 42.30 mm (1.6654 in.)
If the lobe height is less than ,minimum, replace the
camshaft.
(c) Using a micrometer, measure the journal diameter.
Standard diameter: 32.98 – 33.00 mm
(1.2984 – 1.2992 in.)
If the journal diameter is less than specified, replace
the camshaft.

15. INSPECT CAMSHAFT OIL CLEARANCE

(a) Clean the bearing caps and camshaft journal.
(b) Place the camshaft in the cylinder head.
(c) Lay a strip of Plastigage across each journal.
(d) Install the correct numbered bearing cap on each
journal with the arrows pointing toward the front.
Torque each bolt.
Torque: 20 N–m (200kgf.–cm, 14ft–lbf)
HINT: Do not turn the camshaft while the Plastigags is
in place.