Sunfire L4-138 2.3L DOHC VIN D MFI (1995)
1.
Remove the Radiator Outlet Pipe and the Engine Oil Pan, using procedures outlined in Section 6A7 or the Engine Mechanical Section of the
appropriate Service Manual.
2.
Remove the Balance Shaft Drive Chain cover.
3.
Remove the Balance Shaft Drive Chain Tensioner shoe.
Important:
DO NOT remove the balance shaft drive chain or Balance Shaft Drive Sprocket.
4.
Remove only the Oil Pump cover assembly.
5.
Install the new Oil Pump Cover Assembly GM P/N 24577081.
6.
Tighten the four long bolts to 12 N.m (106 lb in.).
7.
Tighten the short bolt to 10 N.m (89 lb in.).
8.
Install the Balance Shaft Drive Chain Tensioner Shoe and the Balance Shaft Drive Chain Cover using procedures outlined in Section 6A7 or the
Engine Mechanical Section of the appropriate Service Manual.
Important:
Do not use excessive pressure when installing the Balance Shaft Drive Chain Tensioner. Excessive Balance Shaft Drive Chain tension will
result in noise and wear concerns.
9.
Reinstall the Engine Oil Pan and the Radiator Outlet pipe, Refer to Section 6A7 or the Engine Mechanical Section of the appropriate Service
Manual.
Parts Information
Whenever ordering parts, refer to the following part number:
GM Part Number
Description
24577081
Cover Assembly, Engine
Oil Pump
Warranty Information
For vehicles repaired under warranty, use one of the applicable warranty labor operation numbers as shown.
Technical Service Bulletin # 77-61-09B
Date: 971001
Engine - Rough Idle/Miss/Cold Stall/High Oil Pressure
File In Section: 6 Engine
Bulletin No.: 77-61-09B
Date: October, 1997
Subject:
