Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 3UR-FE ENGINE MECHANICAL
CYLINDER BLOCK - REASSEMBLY
| 1. INSTALL STUD BOLT |
- NOTICE:
- If the stud bolt is deformed or its threads are damaged, replace it.
Using an E8 "TORX" socket wrench, install the stud bolts.
| *A | Upper Side | *B | Lower Side |
- Torque:
- for stud bolt A:
- 20 N*m{ 204 kgf*cm, 15 ft.*lbf}
- for stud bolt B:
- 9.0 N*m{ 92 kgf*cm, 80 in.*lbf}
| 2. INSTALL NO. 1 OIL NOZZLE SUB-ASSEMBLY |
Using a 5 mm hexagon wrench, install the 4 oil nozzles with the 4 bolts.
- Torque:
- 10 N*m{ 102 kgf*cm, 7 ft.*lbf}
| 3. INSTALL PISTON WITH PIN SUB-ASSEMBLY |
Using a small screwdriver, install a new snap ring at one end of the piston pin hole.
| *1 | Service Hole |
- HINT:
- Be sure that the end gap of the snap ring is not aligned with the service hole of the piston.
Gradually heat the piston to approximately 80°C (176°F).
Coat the piston pin and connecting rod with engine oil.
Align the front marks of the piston and connecting rod as shown in the illustration. Then push in the piston pin with your thumb until the piston pin contacts the snap ring.
| *A | LH |
| *B | RH |
| *1 | Front Mark |
- NOTICE:
- For the LH side, perform the assembly so that the front marks of the piston and connecting rod are on the same side. For the RH side, perform the assembly so that the front marks of the piston and connecting rod are on opposite sides.
- HINT:
- The piston and pin are a matched set.
Check the fitting condition between the piston and piston pin.
Move the connecting rod back and forth on the piston pin. Check the fitting condition.
If abnormal movement is felt, replace the piston and pin as a set.
Rotate the piston back and forth on the piston pin. Check the fitting condition.
If abnormal movement is felt, replace the piston and pin as a set.
Using a small screwdriver, install a new snap ring at the other end of the piston pin hole.
| *1 | Service Hole |
- HINT:
- Be sure that the end gap of the snap ring is not aligned with the service hole of the piston.
| 4. INSTALL PISTON RING SET |
Install the oil ring expander and 2 side rails by hand.
| *1 | Side Rail Upper |
| *2 | Side Rail Lower |
| *3 | Oil Ring Expander |
Using a piston ring expander, install the 2 compression rings so that the paint marks are positioned as shown in the illustration.
- Paint Mark:
Item Paint Mark No. 1 compression ring Yellow No. 2 compression ring Green
| *1 | No. 1 Compression Ring |
| *2 | No. 2 Compression Ring |
| *3 | Paint Mark |
 | Top |
| 5. INSTALL CRANKSHAFT BEARING |
Clean the main journal and both surfaces of the bearing.
Install the upper bearing.
| *1 | No. 1 and No. 5 Journal Bearings |
| *2 | No. 2, No. 3 and No. 4 Journal Bearings |
- NOTICE:
- Main bearings come in widths of 21 mm (0.827 in.) and 22.5 mm (0.886 in.). Install the 22.5 mm (0.886 in.) bearings in the No. 1 and No. 5 cylinder block journal positions with the main bearing caps. Install the 21 mm (0.827 in.) bearings in the No. 2, No. 3 and No. 4 positions.
Install the upper bearing to the cylinder block as shown in the illustration.
| *a | CORRECT |
| *b | INCORRECT |
- NOTICE:
Install the lower bearing.
- NOTICE:
Install the lower bearings to the crankshaft bearing caps.
Using a vernier caliper, measure the distance between the crankshaft bearing cap edge and the lower bearing edge.
- Dimension A - B or B - A:
- 0 to 0.7 mm (0 to 0.0276 in.)
| *1 | Vernier Caliper |
- NOTICE:
| 6. INSTALL CRANKSHAFT THRUST WASHER SET |
Apply engine oil to the thrust washer set.
Install the 4 thrust washers to the No. 3 journal position of the cylinder block and crankshaft bearing cap with the oil grooves facing outward.
| 7. INSTALL CRANKSHAFT |
Apply engine oil to the upper bearing and lower bearing, then place the crankshaft on the cylinder block.
Confirm the front marks and numbers of the crankshaft bearing caps, and install the crankshaft bearing caps on the cylinder block.
| *1 | Number Mark |
- HINT:
- A number is marked on each main bearing cap to indicate the installation position.
Apply a light coat of engine oil to the threads and under the heads of the bearing cap bolts.
Temporarily install the 10 crankshaft bearing cap bolts to the inside positions.
Push the crankshaft bearing cap by hand until the clearance between the crankshaft bearing cap and cylinder block is less than 6 mm (0.236 in.).
- Bolt length:
- 91 mm (3.58 in.)
| *a | Less than 6 mm |
Using a plastic-faced hammer, lightly tap the crankshaft bearing cap to ensure a proper fit.
Apply a light coat of engine oil to the threads and under the heads of the 10 crankshaft bearing cap bolts.
Temporarily install the 10 crankshaft bearing cap bolts to the outside positions.
- Bolt length:
- 79.5 mm (3.13 in.)
- HINT:
- The main bearing cap bolts are tightened in 2 progressive steps.
Step 1:
Uniformly tighten the 20 crankshaft bearing cap bolts in the sequence shown in the illustration.
- Torque:
- for inside position:
- 61 N*m{ 622 kgf*cm, 45 ft.*lbf}
- for outside position:
- 27 N*m{ 275 kgf*cm, 20 ft.*lbf}
If any of the main bearing cap bolts does not meet the specified torque, replace it.
Step 2:
Mark the front of the bearing cap bolts with paint.
Tighten the bearing cap bolts 90° in the order shown in step 1.
Check that the painted marks are now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
Install and uniformly tighten the 10 crankshaft bearing cap bolts and 10 new seal washers in several steps in the sequence shown in the illustration.
- Torque:
- 45 N*m{ 459 kgf*cm, 33 ft.*lbf}
Check that the crankshaft turns smoothly.
| 8. INSTALL CONNECTING ROD BEARING |
Install the connecting rod bearings to the connecting rods and bearing caps.
Using a vernier caliper, measure the distance between the connecting rod and bearing cap edges, and each connecting rod bearing edge.
- Dimension A - B or B - A:
- 0 to 0.7 mm (0 to 0.0276 in.)
| *1 | Vernier Caliper |
- NOTICE:
| 9. INSTALL PISTON AND CONNECTING ROD |
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.
| *1 | Side Rail Upper |
| *2 | Side Rail Lower |
| *3 | Front Mark |
| *4 | No. 1 Ring |
| *5 | No. 2 Ring |
- NOTICE:
- Do not align the ring ends.
- HINT:
- The expander ends can be placed anywhere.
Using a hammer handle and piston ring compressor, push the correctly numbered piston and connecting rod into the cylinder with the front mark of the piston facing forward.
| *A | LH |
| *B | RH |
| *1 | Front Mark |
Place the connecting rod cap on the connecting rod.
Match the numbered connecting rod cap with the connecting rod.
Place the connecting rod cap on the connecting rod, and check that the front mark of the connecting rod cap is facing the direction indicated in the chart below.
- Front Mark:
Item Front Mark Bank 1 Front side Bank 2 Rear side
| *1 | Front Mark |
| Front |
Apply a light coat of engine oil to the threads and under the heads of the connecting rod cap bolts.
Temporarily install the connecting rod cap bolts.
- HINT:
- The connecting rod cap bolts are tightened in 2 progressive steps.
Step 1:
Install and alternately tighten the bolts of the connecting rod cap in several steps.
- Torque:
- 40 N*m{ 408 kgf*cm, 30 ft.*lbf}
Step 2:
Mark the front side of each connecting rod cap bolt with paint.
Tighten the cap bolts 90° as shown in the illustration in the order in step 1.
Check that the painted marks are now at a 90° angle to the front.
Check that the crankshaft turns smoothly.