Coolant Air Bleed Pipe Installation

Important:  Install the pipe gaskets properly onto the pipe and covers.

Position the gasket O-ring seal onto the nipple portion of the pipe.

1. Install the gaskets onto the engine coolant air bleed pipe and covers.
   Fig 1: Installing Gaskets Onto Engine Coolant Air Bleed Pipe And Covers

   Courtesy of GENERAL MOTORS CORP.
2. Install the pipe (2) and gaskets (3) onto the cylinder heads.
   Fig 2: Installing Pipe And Gaskets Onto Cylinder Heads

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Refer to FASTENER NOTICE .
3. Install the pipe studs (1).

   Install the two pipe studs to the front of the engine.

   Tighten 

   Tighten the pipe studs to 12 N.m (106 lb in).

4. Install the covers (2), gaskets (3), and bolts (1) onto the rear of the engine.
   Fig 3: Installing Covers, Gaskets, And Bolts Onto Rear Of Engine

   Courtesy of GENERAL MOTORS CORP.

   Tighten 

   Tighten the cover bolts to 12 N.m (106 lb in).

5. Install the hose and clamp (2) onto the pipe (1).
   Fig 4: Installing Hose And Clamp Onto Pipe

   Courtesy of GENERAL MOTORS CORP.