Express 1/2 Ton Van V8-305 5.0L VIN M SFI (1998)
Intake Manifold: Service and Repair
Intake Manifold Assemble
1. Install the fuel meter body (5) into the lower intake manifold (6).
2. Install the 8 poppet nozzles into the lower intake manifold (6).
3. Inspect the poppet nozzles in order to ensure that the poppet nozzles are firmly seated and locked in the lower intake manifold bores.
4. Install the NEW fuel meter body seal (4) into the groove on the fuel meter body (5).
5. Install the NEW upper intake manifold to lower intake manifold gasket (3) into the groove of the upper intake manifold (2).
6. Install the upper intake manifold (2) onto the lower intake manifold (6).
7. If reusing the fasteners, apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the threads of the upper
intake manifold attaching studs (1).
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners
requiring replacement of fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use
paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint
clamping force and may damage the fastener. use the correct tightening sequence and specifications when fasteners in order to avoid damage to
parts and systems.
8. Install the upper intake manifold studs (1).
Tighten
a. Tighten the upper intake manifold studs on the first pass to 5 Nm (44 lb in).
b. Tighten the upper intake manifold studs on the second pass to 10 Nm (89 lb in).
