Valve Springs: Removal
- Remove valve cover. On each rocker arm, rotate camshaft until base circle of camshaft is in contact with rocker arm.
- Depress valve spring using Valve Spring Compressor (C-4682) and slide rocker arm out. Keep rocker arms in order for reinstallation. Remove hydraulic lash adjuster. Rotate crankshaft until piston of cylinder concerned is at TDC.
- Remove spark plug. Install an air line and apply 90-120 psi (6.3-8.4 kg/cm2 ) air pressure to hold valves closed. Install Valve Spring Compressor (C-4682) and compress valve spring. See Fig 1.
- Remove valve locks, valve spring, retainer and valve spring seat. Remove oil seal by gently prying oil seal side-to-side using screwdriver.