Page 393 of 715

06-4
NO. FUNCTION NO. FUNCTION
1 Oil pump 18 Oil supply (to exhaust camshaft)
2 Oil gallery (to oil filter) 19 Oil supply (to intake camshaft)
3 Oil filter 20Oil supply
(to exhaust camshaft bearing)
4 Oil pressure switch 21Oil supply
(to intake camshaft bearing)
5 Main oil gallery 22Oil gallery
(oil supply to exhaust valve tappet)
6 Cylinder head closing cover 23Oil gallery
(oil supply to intake valve tappet)
7 Oil gallery (at chain tensioner) 24 Camshaft closing cover
8 Oil non-return valve 25Ball (φ 8 mm)
9 Chain tensioner 26 Screw plug
10 Vent (chain tensioner) 27 Camshaft adjuster
11Front closing cover (φ 17 mm)28Front closing cover
(intake camshaft)
12Oil gallery
(perpendicular to the shaft)29Front treaded bushing
(exhaust camshaft)
13Ball (φ 6 mm)30 Valve tappet
14 Oil spray nozzle (timing chain) aOil gallery
(from oil pump to oil filter)
15 Oil gallery (at cylinder head) b Main oil gallery
16Ball (φ 15mm)cOil return line
(oil returns to the oil pan when
replacing the filter element)
17Oil restriction inner (φ 4mm)
OIL CIRCULATION ▶
Page 394 of 715
07-32110-01
1. GENERAL SPECIFICATIONS
Page 395 of 715
07-4
2. SPECIAL TOOLS AND EQUIPMENT
Page 396 of 715
07-52110-01
3. FASTENER TIGHTENING SPECIFICATIONS
Page 397 of 715

07-6
1. GENERAL DESCRIPTION
The cooling system maintains the engine temperature at an efficient level during all engine
operating conditions. When the engine is cold, the cooling system cools the engine slowly or not
at all. This slow cooling of the engine allows the engine to warm up quickly. The cooling system
includes a radiator and recovery subsystem, cooling fans, a thermostat and housing, a water
pump, and a water pump drive belt. The timing belt drives the water pump. All components must
function properly for the cooling system to operation. The water pump draws the coolant from the
radiator.
The coolant then circulates through water jackets in the engine block, the intake manifold, and
the cylinder head. When the coolant reaches the operating temperature of the thermostat, the
thermostat opens. The coolant then goes back to the radiator where it cools. This system directs
some coolant through the hoses to the heat core. This provides for heating and defrosting. The
coolant reservoir is connected to the radiator to recover the coolant displaced by expansion from
the high temperatures. The coolant reservoir maintains the correct coolant level. The cooling
system for this vehicle has no radiator cap or filler neck. The coolant is added to the cooling
system through the coolant reservoir.
Page 398 of 715
07-72110-01
2. COMPONENT LOCATOR
Page 399 of 715
07-8
Radiator
Electric fan
Shroud
Deaeration tube
Clamp
Deaeration hose (radiator)
Electric fan mounting bracket
Bolt (M6, 8 pieces)
Bolt (M6, 4 pieces)
Bolt (M6, 4 pieces)
Upper radiator insulator
Lower radiator insulator
Plate
Clip 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.Inlet hose
Outlet hose
3 way hose
Deaeration hose (reserver tank)
Clamp
Clamp
Make up hose holder
Reserver tank
Bolt (M6, 2 piece)
Cooling fan
Viscous clutch
Bolt (M6, 1 piece)
Bolt (M6, 3 piece) 15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
Page 400 of 715
08-31452-01
1. GENERAL SPECIFICATIONS