Inspection [12/2015 - 08/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT OIL PUMP RELIEF VALVE

Coat the oil pump relief valve with engine oil and check that it falls smoothly into the valve hole by its own weight.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the valve does not fall smoothly, replace the oil pump relief valve. If necessary, replace the timing chain cover sub-assembly.

INSPECT OIL PUMP ROTOR SET

Install the rotors to the timing chain cover with the rotors marks facing up. Check that the rotors rotate smoothly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

Mark

Check the tip clearance.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a feeler gauge, measure the clearance between the drive and driven rotor tips, as shown in the illustration.
Tip Clearance

Standard

0.060 to 0.160 mm (0.00236 to 0.00630 in.)

Maximum

0.160 mm (0.00630 in.)

If the tip clearance is greater than the maximum, replace the timing chain cover sub-assembly.

Check the side clearance.

Using a feeler gauge and precision straightedge, measure the clearance between the rotors and precision straightedge, as shown in the illustration.
Slide Clearance

Standard

0.030 to 0.090 mm (0.00118 to 0.00354 in.)

Maximum

0.090 mm (0.00354 in.)

If the side clearance is greater than the maximum, replace the timing chain cover sub-assembly.

Check the body clearance.

Using a feeler gauge, measure the clearance between the timing chain cover and driven rotor, as shown in the illustration.
Body Clearance

Standard

0.250 to 0.325 mm (0.00984 to 0.0128 in.)

Maximum

0.325 mm (0.0128 in.)

If the body clearance is greater than the maximum, replace the timing chain cover sub-assembly.