Viper V10-488 8.0L (1992)
Hydraulic Lash Adjuster: Service and Repair
TAPPET REMOVAL
1. Refer to Cylinder Head Removal of this section to remove intake manifold and cylinder heads for access to tappets for service.
2. Remove aligning yoke assemblies.
3. Use Tool C-4129 to remove tappets from their bores. If all tappets are to be removed, identify tappets to insure installation in original location.
CAUTION: The plunger and tappet bodies are not interchangeable. The plunger and valve must always be lifted to the original body. It is advisable to
work on one tappet at a time to avoid mixing of parts. Mixed parts are not compatible. Do not disassemble a tappet on a dirty work bench.
DISASSEMBLY
1. Pry out plunger retainer spring clip.
2. Clean varnish deposits from inside of tappet body above plunger cap.
3. Invert tappet body and remove plunger cap, plunger, flat or ball check valve, check valve spring, check valve retainer and plunger spring. Check
valve could be flat or ball.
CLEANING AND ASSEMBLY
1. Clean all tappet parts in a solvent that will remove all varnish and carbon.
2. Replace tappets that are unfit for further service with new assemblies.
3. If plunger shows signs of scoring or wear and valve is pitted, or if valve seat on end of plunger indicates any condition that would prevent valve
from seating, install a new tappet assembly.
4. Assemble tappets.
INSTALLATION
1. Lubricate tappets.
2. Install tappets in their original positions.
