Inspection [08/2013 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.

INSPECT CHAIN SUB-ASSEMBLY

Pull the chain sub-assembly with a force of 147 N (15 kgf, 33.0 lbf) as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Measurement Length

Using a vernier caliper, measure the length of 15 links.
Maximum Chain Elongation

115.2 mm (4.54 in.)

NOTE:
Perform the measurement at 3 random places. Use the average of the measurements.

If the average elongation is more than the maximum, replace the chain sub-assembly.

INSPECT NO. 2 CHAIN SUB-ASSEMBLY

Pull the No. 2 chain sub-assembly with a force of 147 N (15 kgf, 33.0 lbf) as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Measurement Length

Using a vernier caliper, measure the length of 15 links.
Maximum Chain Elongation

102.1 mm (4.02 in.)

NOTE:
Perform the measurement at 3 random places. Use the average of the measurements.

If the average elongation is more than the maximum, replace the No. 2 chain sub-assembly.

INSPECT OIL PUMP DRIVE GEAR

Place the No. 2 chain sub-assembly around the oil pump drive gear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a vernier caliper, measure the diameter of the oil pump drive gear and No. 2 chain sub-assembly.
Minimum Gear Diameter (with Chain)

48.2 mm (1.90 in.)

NOTE:
The vernier caliper must be in contact with the chain rollers when measuring.

If the diameter is less than the minimum, replace the No. 2 chain sub-assembly and oil pump drive gear.

INSPECT OIL PUMP DRIVE SHAFT GEAR

Place the No. 2 chain sub-assembly around the oil pump drive shaft gear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a vernier caliper, measure the diameter of the oil pump drive shaft gear and No. 2 chain sub-assembly.
Minimum Gear Diameter (with Chain)

48.2 mm (1.90 in.)

NOTE:
The vernier caliper must be in contact with the chain rollers when measuring.

If the diameter is less than the minimum, replace the No. 2 chain sub-assembly and oil pump drive shaft gear.

INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

Place the chain sub-assembly around the camshaft timing gear assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a vernier caliper, measure the diameter of the camshaft timing gear assembly and chain sub-assembly.
Minimum Gear Diameter (with Chain)

96.8 mm (3.81 in.)

NOTE:
The vernier caliper must be in contact with the chain rollers when measuring.

If the diameter is less than the minimum, replace the chain sub-assembly and camshaft timing gear assembly.

INSPECT CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

Place the chain sub-assembly around the camshaft timing exhaust gear assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a vernier caliper, measure the diameter of the camshaft timing exhaust gear assembly and chain sub-assembly.
Minimum Gear Diameter (with Chain)

96.8 mm (3.81 in.)

NOTE:
The vernier caliper must be in contact with the chain rollers when measuring.

If the diameter is less than the minimum, replace the chain sub-assembly and camshaft timing exhaust gear assembly.

INSPECT CRANKSHAFT TIMING GEAR

Place the chain sub-assembly around the crankshaft timing gear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a vernier caliper, measure the diameter of the crankshaft timing gear and chain sub-assembly.
Minimum Gear Diameter (with Chain)

51.1 mm (2.01 in.)

NOTE:
The vernier caliper must be in contact with the chain rollers when measuring.

If the diameter is less than the minimum, replace the chain sub-assembly and crankshaft timing gear.

INSPECT CHAIN TENSIONER SLIPPER

Using a vernier caliper, measure the chain tensioner slipper wear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Maximum Wear

1.0 mm (0.0394 in.)

If the wear is more than the maximum, replace the chain tensioner slipper.

INSPECT NO. 1 CHAIN VIBRATION DAMPER

Using a vernier caliper, measure the No. 1 chain vibration damper wear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Maximum Wear

1.0 mm (0.0394 in.)

If the wear is more than the maximum, replace the No. 1 chain vibration damper.

INSPECT CHAIN TENSIONER PLATE

Using a vernier caliper, measure the chain tensioner plate wear.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Maximum Wear

1.0 mm (0.0394 in.)

If the wear is more than the maximum, replace the chain tensioner plate.

INSPECT NO. 1 CHAIN TENSIONER ASSEMBLY

Check that the plunger moves smoothly when the cam is raised with your finger.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Raise
*b	Move
*c	Lock

Release the cam, then check that the plunger is locked in place by the cam and does not move when pushed with your finger.
If necessary, replace the No. 1 chain tensioner assembly.

INSPECT CYLINDER HEAD SET BOLT

Using a vernier caliper, measure the length of the cylinder head set bolt from the seat to the end.

*a	Measurement Length

Standard Length

146.8 to 148.2 mm (5.78 to 5.83 in.)

Maximum Length

149.2 mm (5.87 in.)

HINT:

If the length is greater than the maximum, replace the cylinder head set bolt with a new one. Failure to do so may lead to engine damage.
If there is any thread deformation, replace the cylinder head set bolt with a new one.

Using a vernier caliper, measure the diameter of the elongated thread at the measuring area.

Standard Diameter

9.77 to 9.96 mm (0.3846 to 0.3921 in.)

Minimum Diameter

9.4 mm (0.3701 in.)

HINT:

If the diameter is less than the minimum, replace the cylinder head set bolt with a new one. Failure to do so may lead to engine damage.
If there is any thread deformation, replace the cylinder head set bolt with a new one.

*a	Measurement Point

INSPECT EXHAUST MANIFOLD

Using a precision straightedge and feeler gauge, measure the warpage on the surface that contacts the cylinder head sub-assembly.

Maximum Warpage

0.7 mm (0.0276 in.)

If the warpage is more than the maximum, replace the exhaust manifold.