1E-4 Engine Lubrication System:
Heat Exchanger On-Vehicle Inspection
S7RS0B1506002
• Check heat exchanger for deformation wear or
damage.
• Check heat exchanger for coolant leakage and oil
leakage.
If any malcondition is found, replace O-ring, stand bolt
gasket and/or heat exchanger.
Heat Exchanger Removal and Installation
S7RS0B1506003
Removal
1) Drain engine oil by removing drain plug.
2) Drain coolant referring to “Cooling System Draining
in Section 1F”.
3) Remove exhaust manifold referring to “Exhaust
Manifold Removal and Installation in Section 1K”.
4) Remove heat exchanger inlet No. 1 hose and outlet
No. 1 hose.
5) Remove heat exchanger, O-ring and gasket by
removing heat exchanger stand bolt.
Installation
Reverse removal procedure for installation noting the
followings.
• Use new stand bolt gasket.
• Apply engine oil to new O-ring and install it to heat
exchanger.
• Install heat exchanger (1) while matching the
projection of heat exchanger (2) in rib of the cylinder
block (3) as shown in figure.
• Install heat exchanger stand bolt (4) to specified
torque.
Tightening torque
Heat exchanger stand bolt (a): 22 N·m (2.2 kgf-m,
16.0 lb-ft)
• Refill cooling system with coolant referring to “Cooling
System Flush and Refill in Section 1F”.
• Refill engine with engine oil referring to “Engine Oil
and Filter Change in Section 0B”.
• Upon completion of installation, check for engine
coolant and oil leaks.
2
3
4, (a)
1
I6RS0B151002-01
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