Century L4-2.2L VIN 4 (1994)
6.
After removing the timing chain, tensioner, and sprockets, inspect the cup plug behind the timing chain for signs of oil flow (See Figure 3). The
cup plug has an orifice approximately 1 mm (0.039 in.) in diameter. If the plug appears dry or the orifice appears to be blocked with debris, insent
the puller end of slide hammer J 6471-02 or equivalent into the cup plug and remove it.
7.
After cleaning any debris from behind the cup plug, install a new cup plug, GM P/N 14033197, into the oil passage.
Important:
The cup plug must be replaced with GM P/N 14033197. This plug has a specifically sized lubrication hole for the timing chain. If any other plug is
used, there may be a reduction in engine oil pressure to the valvetrain or a lack of lubrication for the timing chain and tensioner components.
8.
After the correct cup plug is installed in the oil passage, install a new timing chain, tensioner, and sprockets using procedures outlined in Section
6A2 or the Engine Section of the appropriate Service Manual.
