| 摘要 |
<p>Apparatus and method for removing, installing and/or testing valve-spring retainer assemblies of internal combustion engines and the like employ an existing spark plug opening (40) to mount a tool (44, 64, 80) which is designed to depress a valve spring (22) and thereby disengage an associated valve-spring retainer assembly (26, 28). Once it has been disengaged, at least a portion of the valve-spring retainer assembly can be removed from a cylinder head (10) of the engine through the tool.</p> |
