5-24 ENGINE TOP END
Rocker Arm Assembly
Prepare a flat-end bar [A] and a block [B] with a recess
Press the oil chamber [D] for the HLA into the rocker arm
end [E] until the chamber end is even with the step [F] of
Install the oil chamber as shown so that the air bleed hole
[G] is placed within 120 degrees [H]. This makes HLA
Remove the rocker case (see Rocker Case Removal).
Remove the rocker arms.
Pull the HLA (hydraulic lash adjuster) [B] out of the rocker
arm [A] with your fingers.
Be careful not to damage or deform an HLA by tap-
ping it during removal or installation.
Do not drop the HLA or hit it sharply. If it is dam-
aged, the plunger will not operate smoothly.
HLA Air Bleeding
Fill a container with engine oil.
Prepare a thumbtack and cut its needle to 2.1 ~ 2.3 mm
(0.0827 ~ 0.0906 in.) long [A]. Grind its cutting edge [B]
Push in the check valve of the HLA [D] with the needle of
the tack [C] and move the plunger up and down in the oil
If the plunger sinks into the HLA body, repeat the air
bleeding procedure and then push the plunger.
After air bleeding, if the plunger sinks into the HLA body
again, replace the HLA.
Do not push the check valve in more than 2.1 ~ 2.3
mm. Pushing too deep may cause the damage of