Section 03-00: Engine—Service | 1993 Mustang Workshop Manual |
DIAGNOSIS AND TESTING
Camshaft End Play
Tools Required:
- Rotunda Dial Indicator with Bracketry 014-00282
CAUTION: Prying against the camshaft gear with the valve train load on the
camshaft can break or damage the gear. Therefore, the rocker arm adjusting nuts
must be backed off, or the rocker arm and shaft assembly must be loosened
sufficiently to free the camshaft. After checking the camshaft end play, adjust
the valve clearance.
- Push camshaft toward rear of engine. Install Rotunda Dial Indicator with
Bracketry 014-00282 or equivalent so indicator point is on camshaft sprocket
attaching screw.

- Zero dial indicator. Pull camshaft forward and release it. Compare dial
indicator reading with specifications. If end play is excessive, replace
camshaft thrust plate.
- Remove dial indicator.
- After replacing thrust plate, check end play again. If it is still out of
specified range, inspect camshaft and cylinder head/cylinder block for
excessive wear.