Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Replacement

REPLACEMENT

PROCEDURE

1. REPLACE INTAKE VALVE GUIDE BUSH

(a) Heat the cylinder head to 80 to 100°C (176 to 212°F).

(b) Place the cylinder head on wooden blocks.

(c) Using SST and a hammer, tap out the intake valve guide bushes.

SST: 09201-10000

09201-01050

SST: 09950-70010

09951-07100

(d) Using a caliper gauge, measure the intake valve guide bush bore diameter of the cylinder head.

Standard cylinder bore diameter:

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

Select a New Guide Bush (STD or O/S 0.05):

Bush Size

Specified Condition

STD

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

O/S 0.05

10.335 to 10.356 mm (0.4069 to 0.4077 in.)

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.4057 in.), machine the bush bore to the dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush.

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.4077 in.), replace the cylinder head.

(e) Heat the cylinder head to 80 to 100°C (176 to 212°F).

(f) Place the cylinder head on wooden blocks.

(g) Using SST, tap in new intake valve guide bushes to the specified protrusion height.

Text in Illustration

*a

Protrusion Height

SST: 09201-10000

09201-01050

SST: 09950-70010

09951-07100

Standard protrusion height:

9.10 to 9.90 mm (0.358 to 0.390 in.)

(h) Using a sharp 5.5 mm reamer, ream the valve guide bushings to obtain the specified clearance.

Standard oil clearance:

0.025 to 0.060 mm (0.000984 to 0.00236 in.)

2. REPLACE EXHAUST VALVE GUIDE BUSH

(a) Heat the cylinder head to 80 to 100°C (176 to 212°F).

(b) Place the cylinder head on wooden blocks.

(c) Using SST and a hammer, tap out the exhaust valve guide bushes.

SST: 09201-10000

09201-01050

SST: 09950-70010

09951-07100

(d) Using a caliper gauge, measure the exhaust valve guide bush bore diameter of the cylinder head.

Standard cylinder bore diameter:

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

Select a New Guide Bush (STD or O/S 0.05):

Bush Size

Specified Condition

STD

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

O/S 0.05

10.335 to 10.356 mm (0.4069 to 0.4077 in.)

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.4057 in.), machine the bush bore to the dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush.

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.4077 in.), replace the cylinder head.

(e) Heat the cylinder head to 80 to 100°C (176 to 212°F).

(f) Place the cylinder head on wooden blocks.

(g) Using SST, tap in new exhaust valve guide bushes to the specified protrusion height.

Text in Illustration

*a

Protrusion Height

SST: 09201-10000

09201-01050

SST: 09950-70010

09951-07100

Standard protrusion height:

9.10 to 9.90 mm (0.358 to 0.390 in.)

(h) Using a sharp 5.5 mm reamer, ream the valve guide bushings to obtain the specified clearance.

Standard oil clearance:

0.03 to 0.065 mm (0.00118 to 0.00256 in.)

3. REPLACE RING PIN

NOTICE:

It is not necessary to remove the ring pin unless it is being replaced.

(a) Using a plastic-faced hammer, tap in new ring pins to the specified protrusion height.

Text in Illustration
   

*A

Bank 1

*B

Bank 2

*a

Protrusion Height

Standard protrusion height:

2.5 to 3.5 mm (0.0984 to 0.138 in.)

4. REPLACE STRAIGHT PIN

NOTICE:

It is not necessary to remove the straight pin unless it is being replaced.

(a) Using a plastic-faced hammer, tap in new straight pins as shown in the illustration.

Text in Illustration

*A

Bank 1

*B

Bank 2

*a

Protrusion Height

-

-

Standard protrusion height:

17.5 to 19.5 mm (0.689 to 0.768 in.)

Inspection
INSPECTION PROCEDURE 1. INSPECT CYLINDER HEAD SUB-ASSEMBLY (a) Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces where the cylinder head contacts the cy ...

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT: Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly or cylinder head LH (See page ). PROCEDURE 1. INSTALL SPARK ...

Other materials:

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Repair
REPAIR PROCEDURE 1. REPAIR INTAKE VALVE SEATS NOTICE: Repair the intake valve seat while checking the seating position. Keep the lip free of foreign matter. (a) Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specif ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals ...

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