Cylinder Block Reassembly

Using an E8 "TORX" socket wrench, install the stud bolts labeled A.

Torque:

7.5 N*m{76 kgf*cm, 66 in.*lbf}

Using an E7 "TORX" socket wrench, install the stud bolts labeled B and D.

Torque:

7.5 N*m{76 kgf*cm, 66 in.*lbf}

Apply adhesive to the hole for the stud bolt labeled C in the cylinder block. Using an E7 "TORX" socket wrench, install the stud bolt labeled C.

Torque:

7.5 N*m{76 kgf*cm, 66 in.*lbf}

HINT:

When reusing a stud bolt, apply adhesive to the bolt before installing it.

Adhesive:

Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent

Apply adhesive to the drain cock.

Adhesive:

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

Install the cylinder block water drain cock as shown in the illustration.

Torque:

25 N*m{250 kgf*cm, 18 ft.*lbf}

NOTICE:

1. Do not rotate the drain cock more than 1 revolution (360°) after tightening the drain cock to the specified torque.
   
2. Do not loosen the drain cock to adjust it. If an adjustment is necessary, remove the drain cock and reinstall it.
   

Install the water drain cock plug to the water drain cock sub-assembly.

Torque:

13 N*m{130 kgf*cm, 9 ft.*lbf}

Using a 5 mm hexagon wrench, install the oil nozzles.

Torque:

7.0 N*m{71 kgf*cm, 62 in.*lbf}

Mount the head portion of the balanceshaft in a vise.

NOTICE:

Do not damage the balanceshaft.

Install the No. 2 balanceshaft thrust washer and No. 2 balanceshaft driven gear.

Install the bolt.

Torque:

36 N*m{367 kgf*cm, 27 ft.*lbf}

Install the balanceshaft to the cylinder block.

NOTICE:

When installing the balanceshaft, be sure to support the balanceshaft with both hands and avoid scratching the balanceshaft bearing on the cylinder block.

Install the 2 bolts.

Torque:

18 N*m{184 kgf*cm, 13 ft.*lbf}

Mount the head portion of the balanceshaft in a vise.

NOTICE:

Do not damage the balanceshaft.

Install the No. 1 balanceshaft thrust washer, balanceshaft thrust spacer, sliding key and No. 1 balanceshaft driven gear.

Install the bolt.

Torque:

36 N*m{367 kgf*cm, 27 ft.*lbf}

Install the No. 1 balanceshaft to the cylinder block.

NOTICE:

When installing the balanceshaft, be sure to support the balanceshaft with both hands and avoid scratching the balanceshaft bearing on the cylinder block.

Install the bolt.

Torque:

18 N*m{184 kgf*cm, 13 ft.*lbf}

Assemble the piston and connecting rod.

1. Using a screwdriver, install a new snap ring at one end of the piston pin hole.
   

   Text in Illustration

   *a	Service Hole

   HINT:

   Make sure that the end gap of the snap ring is not aligned with the service hole cutout portion of the piston.

2. Gradually heat the piston to approximately 80 to 90°C (176 to 194°F).
   

3. Coat the piston pin with engine oil.
   





4. Align the front marks of the piston and connecting rod and push in the piston pin with your thumb.
   

   Text in Illustration

   *a	Front Mark

   HINT:

   The piston and pin are a matched set.





5. Using a screwdriver, install a new snap ring at the other end of the piston pin hole.
   

   Text in Illustration

   *a	Service Hole

   HINT:

   Make sure that the end gap of the snap ring is not aligned with the service hole cutout portion of the piston.

6. Check the fitting condition between the piston and piston pin by trying to move the piston back and forth on the piston pin.
   

Install the oil ring expander and 2 oil ring side rails by hand.

Using a piston ring expander, install the 2 compression rings so that the painted marks are positioned as shown in the illustration.

HINT:

1. Install the No. 1 compression ring with the code mark (1N) facing upward.
   
2. Install the No. 2 compression ring with the code mark (2N) facing upward.
   

Position the piston rings so that the ring ends are as shown in the illustration.

NOTICE:

Do not align the compression ring ends.

Clean the main journal and both surfaces of the bearing.

Install the upper bearing.

1. Install the upper bearing to the cylinder block as shown in the illustration.
   

   Reference (Difference in Dimension of Cylinder Block and Bearing):

   Item	Specified Condition
   # 1, 5 journal	3.75 mm (0.148 in.)
   # 3 journal	1.75 mm (0.0689 in.)
   # 2, 4 journal	2.75 mm (0.108 in.)

   NOTICE:

   1. Do not apply engine oil to the bearings or their contact surfaces.
      
   2. Both sides of the oil groove in the cylinder block should be visible through the oil feed holes in the bearing. The amount visible on each side of the holes should be equal.
      

   Text in Illustration

   *a	CORRECT
   *b	INCORRECT
   *c	Oil Groove

Install the lower bearing.

1. Install the lower bearing to the bearing cap.
   

2. Using a vernier caliper, measure the distance between the bearing cap edge and lower bearing edge.
   

   Dimension A - B or B - A:

   0.3 mm (0.0118 in.) or less
   

   Reference (Dimension of A or B):

   Item	Specified Condition
   # 1, 5 journal	3.75 mm (0.148 in.)
   # 3 journal	1.75 mm (0.0689 in.)
   # 2, 4 journal	2.75 mm (0.108 in.)

   NOTICE:

   Do not apply engine oil to the bearings or their contact surfaces.

With the upper bearing and lower bearing installed, use a plastic-faced hammer to install the bearing caps to the cylinder block.

NOTICE:

Make sure that the bearing caps are installed in the correct positions and facing in the correct direction.

Using a vernier caliper, measure the amount of misalignment between the upper bearing and lower bearing as shown in the illustration.

Standard misalignment:

0.9 mm (0.0354 in.) or less

Remove the bearing cap.

Apply engine oil to the thrust washers.

Install the 2 thrust washers to the No. 3 journal position of the cylinder block with the oil grooves facing outward.

NOTICE:

Be careful when installing the upper and lower thrust washers as they are similar but cannot be interchanged.

Install the 2 thrust washers to the No. 3 bearing cap with the grooves facing outward.

NOTICE:

Be careful when installing the thrust bearing upper and lower as they are similar but cannot be interchanged. The bearing lower has a claw as shown in the illustration.

Apply engine oil to the lower bearing.

Apply engine oil to the upper bearing, and then place the crankshaft on the cylinder block.

Install the 5 crankshaft bearing caps in their proper locations.

Install the crankshaft bearing cap bolt.

1. Apply a light coat of engine oil to the threads and under the heads of the bearing cap bolts.
   

2. Temporarily install the crankshaft bearing cap bolts.
   

   HINT:

   The main bearing cap bolts are tightened in 2 progressive steps.





3. Step 1:
   Uniformly tighten the 10 main bearing cap bolts in the sequence shown in the illustration.
   

   Torque:

   39 N*m{398 kgf*cm, 29 ft.*lbf}

   If any of the main bearing cap bolts does not meet the torque specification, replace the main bearing cap bolt.
   

4. Mark the front of the bearing cap bolts with paint.
   

5. Step 2:
   Tighten the bearing cap bolts 90° in the sequence shown in step 1.
   

6. Check that the paint marks are now at a 90° angle to the front.
   

Check that the crankshaft turns smoothly.

Check the crankshaft thrust clearance (LandCruiser RM00000125A06AX_04_0134.html).

Align the bearing claw with the groove of the connecting rod or connecting rod cap.

Install the bearings to the connecting rod and connecting rod cap.

NOTICE:

Clean the backside of the bearing and the surface of the connecting rod or connecting rod cap that contacts the bearing.

Apply engine oil to the cylinder walls, the pistons, and the surfaces of the connecting rod bearings.

Position the piston rings so that the ring ends are as shown in the illustration.

NOTICE:

Do not align the compression ring ends.

Using a piston ring compressor, push the numbered piston and connecting rod assembly into the correct cylinder with the front mark of the piston facing forward.

Match the numbered connecting rod cap with the correct connecting rod.

Check that the front mark of the connecting rod cap is facing forward.

Install the connecting rod cap bolts.

HINT:

The connecting rod cap bolts are tightened in 2 progressive steps.

1. Apply a light coat of engine oil to the threads and under the heads of the connecting rod cap bolts.
   





2. Step 1:
   Install and alternately tighten the bolts of the connecting rod cap in several steps.
   

   Torque:

   25 N*m{250 kgf*cm, 18 ft.*lbf}

3. Mark the front of each connecting rod cap bolt with paint.
   

4. Step 2:
   Tighten the cap bolts 90° as shown.
   

5. Check that the painted marks are now at a 90° angle to the front.
   

Check that the crankshaft turns smoothly.

Check the connecting rod thrust clearance (LandCruiser RM00000125A06AX_04_0130.html).