General Information
This procedure is for front gear train engines only in which the camshaft has already been removed. Refer to
Procedure 001-008 in Section 1.
NOTE: For rear gear train engines, the camshaft gear must be removed to remove the camshaft. Refer to
Procedure 001-012.
Remove
The camshaft gear can be removed from the camshaft by the following methods.
Use a hydraulic press.
Use the camshaft gear removal and installation tool, Part Number 3823589.
Remove the camshaft gear from the nose of the camshaft.
NOTE: Because the thrust plate extends more than 180 degrees around the camshaft, the thrust plate can only be
removed from the camshaft after removing the camshaft gear from the camshaft.
Remove the thrust plate.
Remove the camshaft gear locating key or dowel pin.
Clean and Inspect for Reuse
Use solvent to clean the camshaft gear.
Dry with compressed air.
Inspect the camshaft gear teeth for pitting. Look for cracks at the root of the teeth.
Inspect the camshaft gear teeth for discoloration or signs of excessive heat (bluing).
If any damage is present, replace the camshaft gear.
NOTE: If there is damage to the camshaft gear teeth or there are signs of excessive heat, make sure to inspect
the associated crankshaft and fuel pump gears for damage. Measure camshaft gear backlash upon installation.
NOTE: If the fretting, burrs, or raised material burrs can not be removed with abrasive pad, Part Number 3823258
or equivalent, replace camshaft gear.
Inspect the camshaft bore for fretting or burrs.
Inspect the camshaft gear for burrs.
For engines with machined engine speed sensor/position targets, inspect the cam gear and speed sensor targets.
Replace the gear if any damage is found.
Inspect the camshaft nose for frets or burrs.
NOTE: If the fretting, burrs, or raised material burrs can not be removed with abrasive pad, Part Number 3823258
or equivalent, replace camshaft.
Measure
Measure camshaft thrust plate thickness.
If the camshaft thrust plate is out of specification, replace the thrust plate.
Install
Apply assembly lubricant, Part Number 3163087, to the nose of the camshaft.
NOTE: Because the thrust plate extends more than 180 degrees around the camshaft, the thrust plate must be
installed before the camshaft gear.
Install the camshaft thrust plate onto the nose of the camshaft until it contacts the first camshaft journal.
Install the camshaft gear locating key or dowel pin with a plastic mallet.
The camshaft gear can be installed by the following methods.
Heat the steel camshaft gear to 177ยฐC [350ยฐ F) for 45 minutes.
Install the camshaft gear with the timing marks away from the camshaft.
Install the camshaft gear onto the nose of the camshaft.
Align the camshaft gear keyway with the camshaft locating key/dowel pin.
NOTE: Install the camshaft gear with the timing marks away from the camshaft.
Use the camshaft gear removal and installation tool, Part Number 3823589, to install the camshaft gear onto the
nose of the camshaft.
Align the camshaft gear keyway with the camshaft locating key/dowel pin.
The camshaft gear must be seated against the camshaft shoulder.
Use a 0.025 mm [0.001 in] feeler gauge to see if the feeler gauge can be inserted between the camshaft gear and the
shoulder on the camshaft.
If the feeler gauge can be inserted, the camshaft gear is not properly seated.
