1Gd-Ftv Engine Mechanical. Cylinder Head Gasket Removal

REMOVE CAMSHAFT
REMOVE TIMING CHAIN COVER ASSEMBLY
REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
REMOVE VALVE LASH ADJUSTER ASSEMBLY
REMOVE CYLINDER HEAD SUB-ASSEMBLY
REMOVE CYLINDER HEAD GASKET
INSPECT CYLINDER HEAD SET BOLT

Cylinder Head Gasket -- Removal

NOTICE:

When replacing the parts in the following chart (A), replace the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly with new ones.

Replaced Parts (A)	Pipes Requiring New Replacement
Injector assembly (including shuffling the injector assemblies between the cylinders)	No. 1 injection pipe sub-assembly No. 1 injection pipe sub-assembly
Supply pump assembly Common rail assembly Cylinder block sub-assembly Cylinder head sub-assembly Cylinder head gasket Timing chain case assembly	No. 1 injection pipe sub-assembly No. 2 injection pipe sub-assembly Fuel inlet pipe sub-assembly

After removing the No. 1 injection pipe sub-assembly, No. 2 injection pipe sub-assembly and/or fuel inlet pipe sub-assembly, clean them with a brush and compressed air.
The injector assembly is a precision instrument. Do not use the injector assembly if it is struck or dropped.
The supply pump assembly is a precision instrument. Do not use the supply pump assembly if it is struck or dropped.
Hold the supply pump assembly itself during removal and installation. Do not hold the pre-stroke control valve or fuel pipe, etc.
Make sure foreign matter does not enter the fuel path.

1. REMOVE CAMSHAFT

(LandCruiser RM0000032A802DX.html)

2. REMOVE TIMING CHAIN COVER ASSEMBLY

(LandCruiser RM000005UCN000X.html)

3. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

Remove the 16 No. 1 valve rocker arm sub-assemblies from the 16 valve lash adjuster assemblies.

4. REMOVE VALVE LASH ADJUSTER ASSEMBLY

Remove the 16 valve lash adjuster assemblies from the cylinder head sub-assembly.

5. REMOVE CYLINDER HEAD SUB-ASSEMBLY

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Gd-Ftv Engine Mechanical.Engine.Cylinder Head Gasket Removal

Uniformly loosen the 10 cylinder head set bolts in several passes in the sequence shown in the illustration. Then remove the 10 cylinder head set bolts and 6 cylinder head set bolt spacers.
NOTICE:
1. Cylinder head sub-assembly warpage or cracking could result from removing bolts in the incorrect order.
2. Be careful not to drop the cylinder head set bolt spacers into the cylinder head sub-assembly.

Lift the cylinder head sub-assembly from the ring pins on the cylinder block sub-assembly, and place the cylinder head sub-assembly on wooden blocks on a bench.
NOTICE:
Be careful not to damage the contact surfaces of the cylinder head sub-assembly and cylinder block sub-assembly.
HINT:
If the cylinder head sub-assembly is difficult to remove, use a screwdriver to pry between the cylinder head sub-assembly and cylinder block sub-assembly.

6. REMOVE CYLINDER HEAD GASKET

Remove the cylinder head gasket from the cylinder block sub-assembly.

7. INSPECT CYLINDER HEAD SET BOLT

w/ Washer:
1. Using a vernier caliper, measure the thread outside diameter of the cylinder head set bolt.
  Minimum diameter:
  11.4 mm (0.449 in.)
  Text in Illustration
  *a
  Measuring Area
  *b
  Washer
  If the diameter is less than the minimum, replace the cylinder head set bolt.

Text in Illustration
*a	Measuring Area
*b	Washer

w/o Washer:
1. Using a vernier caliper, measure the thread outside diameter of the cylinder head set bolt.
  Minimum diameter:
  12.8 mm (0.504 in.)
  Text in Illustration
  *a
  Measuring Area
  If the diameter is less than the minimum, replace the cylinder head set bolt and cylinder head set bolt spacer.