Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

(a) Rotate the joint of the cam timing control motor with EDU assembly by hand and check that it rotates smoothly.

Standard Condition:

The joint rotates smoothly.

HINT:

Due to the magnetic force of the cam timing control motor with EDU assembly the joint may feel as if it is sticking when turning it.

If the result is not as specified, replace the cam timing control motor with EDU assembly.

(a) Rotate the camshaft timing gear assembly eccentric shaft by hand.

Standard Condition:

The shaft rotates smoothly.

HINT:

• The eccentric shaft may feel difficult to rotate due to the spring inside the camshaft timing gear assembly.
• If the result is not as specified, replace the camshaft timing gear assembly.

(b) Inspect the joint clearance.

(1) Using a vernier caliper, measure the width (A) of the cutout of the camshaft timing gear assembly eccentric shaft.

Standard Width:

5.98 to 6.05 mm (0.235 to 0.238 in.)

(2) Using a vernier caliper, measure the width (B) of the joint of the cam timing control motor with EDU assembly.

Standard Width:

5.90 to 5.95 mm (0.232 to 0.234 in.)

(3) Calculate the clearance by subtracting the width (B) of the joint of the cam timing control motor with EDU assembly from the width (A) of the cutout of the camshaft timing gear assembly eccentric shaft.

Standard Clearance:

0.03 to 0.15 mm (0.00118 to 0.00591 in.)

Maximum Clearance:

0.7 mm (0.0276 in.)

HINT:

If the clearance is more than the maximum, replace the camshaft timing gear assembly or cam timing control motor with EDU assembly.