Engine Unit: Replacement

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

REPLACE TIMING CHAIN COVER STRAIGHT PIN
1. Remove the 4 straight pins.
2. Using a plastic-faced hammer, tap in new straight pins to the timing chain cover sub-assembly
  Standard protrusion:
  
  5.5 to 6.5 mm (0.217 to 0.256 in.)
Fig 1: Identifying Timing Chain Cover Straight Pin Protrusion
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

REPLACE TIMING CHAIN COVER RING PIN

Remove the 4 ring pins.
Using a plastic-faced hammer, tap in new ring pins to the timing chain cover sub-assembly
Standard Protrusion

TIMING CHAIN COVER RING PIN PROTRUSION SPECIFICATION

Item	Specified Condition
Ring pin A	7.5 to 8 5 mm (0.295 to 0 335 in.)
Ring pin B	3.6 to 4.6 mm (0 142 to 0.181 in.)

Fig 2: Identifying Timing Chain Cover Ring Pin Protrusion

REPLACE OIL PAN STUD BOLT
1. Using an E6 "TORX" socket wrench, install the 2 stud bolts as shown in the illustration
  Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf)
Fig 3: Identifying Oil Pan Stud Bolt Dimension
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REPLACE ENGINE REAR OIL SEAL
1. Place the oil seal retainer on wooden blocks
2. Using a screwdriver and hammer, tap out the oil seal
  
  Fig 4: Removing Engine Rear Oil Seal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Using SST, tap in a new oil seal until its surface is flush with the oil seal retainer edge
  SST 09223-15030, 09950-70010 (09951-07100)
  NOTE:
  - Keep the lip free from foreign matter.
  - Do not tap on the oil seal at an angle.
  Fig 5: Installing Engine Rear Oil Seal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002