Skylark V6-3100 3.1L VIN M SFI (1996)
Timing Chain: Service and Repair
Timing Chain Replacement
Tools Required:
J 5825-A Crankshaft Sprocket Remover
J 38612 Crankshaft Sprocket Installer
Remove or Disconnect
1. Negative battery cable.
2. Drain and recover coolant.
3. Crankcase front cover.
4. Place #1 piston at top dead center with the marks on the camshaft and crankshaft sprockets aligned (#4 firing position).
5. Camshaft sprocket and chain.
Important
^
If the sprocket does not come off easily, a light blow on the lower edge of the sprocket (with a plastic mallet) should dislodge the sprocket.
6. Crankshaft sprocket using J 5825-A.
Install or Connect
1. Crankshaft sprocket using J 38612.
2. Apply GM EOS P/N 1052367 or equivalent to the sprocket thrust surface.
