2.2L Component Inspection
and Servicing
Cylinder Head Disassembly
Remove the valve rocker cover bolts and the valve rocker cover. Then remove
the eight rocker shaft assembly retaining bolts and the rocker shaft assembly.
Note: Remove the rocker assembly slowly to prevent binding against the
mounting dowels.
HLA Handling
Use a small screwdriver to remove the HLA from the rocker socket. Do not
damage the o-rings of the machined surfaces when removing the HLAs. To check
the HLAs for proper operation, squeeze the HLA between your thumb and finger.
The HLA should not compress, it should not be spongy.
Place an HLA in a clean 12 mm socket. The socket serves as an oil reservoir.
Add engine oil to the socket. Use a small allen wrench or paper clip to depress the
check ball. Depress and release the HLA plunger while you hold the check ball
open. This purges the air from the HLA and fills the HLA with oil. It usually
requires only one stroke to fill the HLA. Store the HLAs in engine oil for later
reassembly.
Note: Partially filled HLAs will result in noisy operation of the valve train for
approximately one hour. To test, squeeze the HLA between your thumb and finger.
If the HLA is spongy, repeat the fill process. If the HLA can not be pumped to a
firm condition, replace it.
Assemble the rocker shaft components, rocker arms, spring washers, and the
rocker shaft supports. Lubricate shaft and rocker arms with oil.
Note: The rockers and supports should be returned to their original position on
the shaft. The cut out portion of the rocker shaft must face the oil hole in the rock-
er support. The spring washers must be properly located on the shaft. Always
replace any deformed spring washers.
Lock the rocker shaft in the proper position with the two retaining bolts. Then
fill the HLA sockets with engine oil.
Press the HLAs (by hand) into the rockers to install the HLAs in the rocker
arms. Some oil will drain from the bleed hole. Press the HLA until the o-ring seats.
Install the remaining HLAs. Be sure to check for spongy HLAs during installation.
Note: The HLA O-rings should always be replaced when the HLAs are reinstalled.
Look for leakage from the tensioner rod and seal area. Slight traces of oil at rod
oil seal does not indicate a problem.
Note: Refer to Service Manual Section 2-3 (W2B2) “Inspection of belt tension
adjuster” for tensioner compression specifications.
Rocker Arm Inspection
Inspect the rocker arms for damage. Also inspect the rocker arm bearing surface
for wear. Replace the rocker arm if bearing wear is excessive.
Note: Refer to Service Manual Section 2-3 (W3C2), Inspection of Valve Rocker
Arm for specifications.
Finally, inspect the rocker arm cam contact surface. Replace the rocker arm(s)
when they are scored or gouged.
Removing HLA
Filling And Bleeding HLA
Installing HLA
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