Mark VIII V8-4.6L DOHC (1996)
Camshaft Gear/Sprocket: Service and Repair
Removal
1. CAUTION: At no time, when the timing chain(s) are removed and the cylinder heads (6049) are installed, may the crankshaft (6303) and/or
camshafts (6250) be rotated without following established procedures. Failure to follow these directions will result in valve and/or piston damage.
NOTE: Because this is not a free-wheeling engine, if it has "jumped time," there will be damage to the valves and/or pistons (6108) and will
require the removal of the cylinder heads.
Remove engine front cover (6019).
2. Remove rocker arms (6564).
3. Remove crankshaft position sensor pulse wheel.
Fig. 17 Setting Engine To TDC Of No. 1 Cylinder
4. NOTE: Timing marks on the camshaft sprocket (6256) must be on the top of both sprockets as shown.
Rotate engine to No.1 top dead center (TDC).
