Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 3UR-FE ENGINE MECHANICAL
CYLINDER HEAD GASKET - INSTALLATION
| 1. INSPECT CYLINDER HEAD SET BOLT |
Using a vernier caliper, measure the diameter of the elongated thread at the measuring point.
- Measuring point:
- 94 mm (3.70 in.) for intake side bolt
- 89 mm (3.50 in.) for exhaust side bolt
- Standard diameter:
- 10.85 to 11.00 mm (0.427 to 0.433 in.)
- Minimum diameter:
- 10.6 mm (0.417 in.)
| *1 | Measuring Point |
If the diameter is less than the minimum, replace the cylinder head bolt.
- HINT:
- If a visual check reveals no excessively thin areas, check the center of the bolt (see illustration) and find the area that has the smallest diameter.
| 2. INSPECT CYLINDER HEAD SUB-ASSEMBLY |
Using a precision straightedge and feeler gauge, measure the warpage of the surfaces where the cylinder head contacts the cylinder block and manifold.
- Standard Warpage:
Item Specified Condition Cylinder head lower side 0.05 mm (0.00197 in.) Intake side 0.08 mm (0.00315 in.) Exhaust side 0.05 mm (0.00197 in.)
- Maximum warpage:
- 0.10 mm (0.00394 in.)
| *A | Cylinder Head Lower Side |
| *B | Intake Side |
| *C | Exhaust Side |
If the warpage is more than the maximum, replace the cylinder head.
Using a dye penetrant, check the intake ports, exhaust ports and cylinder surface for cracks.
If cracked, replace the cylinder head.
| 3. INSTALL CYLINDER HEAD SUB-ASSEMBLY RH |
Clean the cylinder block with solvent.
Set the piston of the No. 1 cylinder to slightly ATDC.
Place the cylinder head gasket on the cylinder block surface with the front face of the Lot No. stamp upward.
| *1 | Lot No. |
| *a | Front |
- NOTICE:
Place the cylinder head on the cylinder block.
- NOTICE:
- HINT:
- The cylinder head bolts are tightened in 3 progressive steps.
Apply a light coat of engine oil to the threads and under the heads of the cylinder head bolts.
Step 1:
Using a 10 mm bi-hexagon wrench, install and uniformly tighten the 10 cylinder head bolts with the plate washers in several steps in the sequence shown in the illustration.
- Torque:
- 36 N*m{ 367 kgf*cm, 27 ft.*lbf}
Step 2:
Mark the front side of each cylinder head bolt head with paint.
Tighten the cylinder head bolts another 90°.
Step 3:
Tighten the cylinder head bolts an additional 90°.
Check that the paint marks are now at a 180° angle to the front.
Install and uniformly tighten the 2 bolts in the sequence shown in the illustration.
- Torque:
- 21 N*m{ 214 kgf*cm, 15 ft.*lbf}
| 4. INSTALL CYLINDER HEAD SUB-ASSEMBLY LH |
Clean the cylinder block with solvent.
Set the piston of the No. 1 cylinder to slightly ATDC.
Place the cylinder head gasket on the cylinder block surface with the front face of the Lot No. stamp upward.
| *1 | Lot No. |
| *a | Front |
- NOTICE:
Place the cylinder head on the cylinder block.
- NOTICE:
- HINT:
- The cylinder head bolts are tightened in 3 progressive steps.
Apply a light coat of engine oil to the threads and under the heads of the cylinder head bolts.
Step 1:
- HINT:
- The cylinder head bolts are tightened in 3 progressive steps.
Using a 10 mm bi-hexagon wrench, install and uniformly tighten the 10 cylinder head bolts with the plate washers in several steps in the sequence shown in the illustration.
- Torque:
- 36 N*m{ 367 kgf*cm, 27 ft.*lbf}
Step 2:
Mark the front side of each cylinder head bolt head with paint.
Tighten the cylinder head bolts another 90°.
Step 3:
Tighten the cylinder head bolts an additional 90°.
Check that the paint marks are now at a 180° angle to the front.
Install and uniformly tighten the 2 bolts in the sequence shown in the illustration.
- Torque:
- 21 N*m{ 214 kgf*cm, 15 ft.*lbf}
| 5. INSTALL VALVE STEM CAP |
Apply a light coat of engine oil to the valve stem caps.
Install the 32 valve stem caps to the cylinder heads.
| 6. INSTALL VALVE LASH ADJUSTER ASSEMBLY |
Inspect the valve lash adjuster before installing it ().
Install the 32 valve lash adjusters to the cylinder heads.
- NOTICE:
- Install the lash adjuster to the same place it was removed from.
| 7. INSTALL NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY |
Apply engine oil to the lash adjuster tips and valve stem cap ends.
Install the 32 valve rocker arms as shown in the illustration.
| *1 | Valve Rocker Arm |
| *2 | Valve Stem Cap |
| *3 | Valve Lash Adjuster |
| 8. INSTALL CAMSHAFT |
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| 9. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY |
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