In-Vehicle Repair: Camshafts: Removal
WARNING: This page is about a different car, the 2002 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the camshaft timing sprockets. For additional information, refer to TIMING DRIVE COMPONENTS - TIMING SPROCKETS .
- Use a feeler gauge to measure each valve's clearance and record its location.
- Remove the camshafts.
- Loosen the camshaft journal cap bolts in several two-turn passes in the sequence shown.
- Remove the bolts.
- Remove the caps.
- Inspect the camshaft runout, lobe-lift and journal diameter for wear. For additional information, refer to ENGINE SYSTEM-GENERAL INFORMATION
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- Discard the oil seals.
- Remove the valve tappets from the cylinder head.
- Intake: 0.006 in (0.15 mm)
- Exhaust 0.012 in (0.3 mm)
- Select tappets and mark installation location.
NOTE:
Measure each valve's clearance at base circle with the lobe pointed away from the tappet, before removing the camshafts. Failure to measure all clearances prior to removing the camshafts will necessitate repeated removal and installation and wasted labor time.
CAUTION:
Cylinder head camshaft journal caps are numbered on the outside flats to make sure that they are assembled in their original positions. Failure to do so may result in engine damage.
CAUTION:
If the camshaft and valve tappets are to be reused, mark the location of the valve tappets to make sure that they are assembled in their original positions.
NOTE:
A midrange clearance is the most desirable:
NOTE:
Select tappets using this formula: tappet thickness = measured clearance plus the base tappet thickness minus most desirable thickness.