Section 93 (Thermostat): Installation

WARNING: This page is about a different car, the 2001 Lexus RX 300, 2000 Lexus RX 300, and 1999 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

PLACE THERMOSTAT IN WATER PUMP
1. Install a new gasket on to the thermostat.
2. Align the thermostat jiggle valve with the upper stud bolt, and insert the thermostat in the water inlet housing.
  HINT:
  
  The jiggle valve may be set within 15° of either side of the prescribed position.
  
  Fig 1: Aligning Thermostat Jiggle Valve With Upper Stud Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL WATER INLET
Install the water inlet with the 3 nuts.

Torque: 8 N.m (80 kgf.cm, 69 in.lbf)
INSTALL WATER INLET PIPE
1. Install a new O-ring to the water inlet pipe.
2. Apply soapy water to the O-ring.
3. Connect the water inlet pipe to the water inlet.
4. Install the bolt holding the water inlet pipe to the cylinder head.
  Torque: 19.5 N.m (200 kgf.cm, 14 ft.lbf)
INSTALL ENGINE WIRE PROTECTOR
CONNECT ECT SWITCH CONNECTOR
REINSTALL AIR CLEANER CAP AND AIR CLEANER CASE
FILL WITH ENGINE COOLANT
START ENGINE AND CHECK FOR LEAKS
RECHECK ENGINE COOLANT LEVEL