Diesel Data: Automotive Repair

Lifter / Lash Adjuster: Service and Repair


The hydraulic valve lifters are simple in design. Readjustments are not necessary and servicing them requires that care and cleanliness be exercised in the handling of parts.

DISASSEMBLE & ASSEMBLE
1. Hold plunger down with pushrod and, using a small screwdriver or awl, remove plunger retainer.
2. Remove parts from lifter body.
3. Clean all parts and inspect for damage. If any parts are damaged, the entire lifter assembly should be replaced. The inertia valve in the plunger for rocker arm lubrication should move when the plunger is shaken.
4. To reassemble, invert plunger and set ball into hole in plunger. Place ball check valve retainer over ball and on plunger. Place check valve retainer spring over retainer. Assemble body over plunger assembly. Turn assembly over and install pushrod seat. Compress plunger with pushrod and install retainer.
5. Compress plunger to open oil holes and fill plunger with engine oil. Work plunger up and down and refill.