Valve Spring; Cylinder Head Cover; Hydraulic Tappet; Valve Guide - Jeep cherokee 2000 Service Manual

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DESCRIPTION AND OPERATION (Continued)

VALVE SPRING

The valve springs are made of high strength

chrome silicon steel. The springs are common for

both intake and exhaust valves.

Fig. 9 Valve and Keeper Configuration 2.5L Engine

1 – VALVE LOCKS (3–BEAD)

2 – RETAINER

3 – VALVE STEM OIL SEAL

4 – INTAKE VALVE

5 – EXHAUST VALVE

6 – VALVE SPRING

The cylinder head cover is made of die cast alumi-

num and incorporates the Crankcase Ventilation

(CCV) Hoses and the oil fill opening.

Valve lash is controlled by hydraulic tappets

located inside the cylinder block, in tappet bores

above the camshaft.

The valve guides are integral to the cylinder head,

They are not replaceable. However, they are service-

Fig. 10 Cylinder Head Cover

1 – AIR INLET FITTING

2 – CYLINDER HEAD COVER

3 – FIXED ORIFICE FITTING

The oil pan is made of stamped steel. The oil pan

gasket is a one piece steel backbone silicone coated

Fig. 11 Oil Pan

2 – OIL PAN DRAIN PLUG

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