Installation [12/2023 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
- INSTALL TIMING CHAIN COVER ASSEMBLY
*a Engine Assembly Side *b Timing Chain Cover Assembly Side Clean - - - Clean the contact surfaces of the timing chain cover assembly, cylinder head LH, cylinder head sub-assembly, cylinder block sub-assembly, and confirm that no oil, moisture, or other foreign matter is on the surfaces.NOTE:
Be sure to clean the contact surfaces, especially the surfaces shown in the illustration.
- Clean the contact surfaces of the timing chain cover assembly, cylinder head LH, cylinder head sub-assembly, cylinder block sub-assembly, and confirm that no oil, moisture, or other foreign matter is on the surfaces.
*a Dashed Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)*b Continuous Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)*c Alternate Long and Short Dashed Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)*d Dashed Line Area
(Seal Packing: Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent)6.0 mm (0.236 in.) or more - - - Apply seal packing to the timing chain cover assembly as shown in the illustration.
Seal Packing
Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent
Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent
NOTE:If there is oil on the contact surfaces, wipe them with an oil-free cloth before applying seal packing.
Seal Packing Application Chart
Area Seal Packing Diameter Application Position from Inside Seal Line Dashed Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)3.5 mm (0.138 in.) or more 3.0 to 4.0 mm (0.118 to 0.157 in.) Continuous Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)6.0 mm (0.236 in.) or more 5.0 mm (0.197 in.) Alternate Long and Short Dashed Line Area
(Seal Packing: Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent)4.5 mm (0.177 in.) or more 3.0 to 4.0 mm (0.118 to 0.157 in.) Dashed line area
(Seal Packing: Toyota Genuine Seal Packing 1282B, Three Bond 1282B or equivalent)3.5 mm (0.138 in.) or more 2.0 to 3.0 mm (0.0787 to 0.118 in.)
- Apply seal packing to the timing chain cover assembly as shown in the illustration.
*1 Crankshaft - - *a Drive Rotor Spline - - - Align the drive rotor spline and the crankshaft as shown in the illustration. Install the drive rotor spline and timing chain cover assembly to the crankshaft.
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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
*a Torque *b Bolt Tightening Order - Install the 25 bolts in the order shown in the illustration.
Bolt Length
Item Length (A) 45 mm (1.77 in.) (B) 28 mm (1.10 in.) (C) 55 mm (2.17 in.) (D) 60 mm (2.36 in.) (E) 40 mm (1.57 in.) Torque
Bolt (A), (B), (C)
21 N*m (214 kgf*cm, 15 ft.*lbf)
Bolt (D), (E)
43 N*m (438 kgf*cm, 32 ft.*lbf)
NOTE:- Make sure that there is no oil on the threads of the bolts.
- Tighten the bolts within 10 minutes of applying seal packing.
- Do not add engine oil for at least 2 hours after installation.
- Do not start the engine for at least 2 hours after installation.
- Install the 25 bolts in the order shown in the illustration.
- INSTALL TIMING CHAIN CASE OIL SEAL
Refer to PROCEDURE - Step 1 - INSTALL OIL PAN SUB-ASSEMBLY
Refer to INSTALLATION [12/2023 - ]