Vac-N-Fill Procedure
- Prepare a quantity of coolant slightly greater than the charge air cooling system capacity.
- Attach the Vac-N-Fill gauge assembly to GE-47716-30A Vac-N-Fill Adapter.
Attach the fill hose (1) to the barb fitting on the vacuum gauge assembly (2).
Ensure that the valve is closed.
- NOTE:
Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water.
Always use more coolant than necessary. This will eliminate air from being drawn into the cooling system.
Pour the coolant mixture into the graduated reservoir (1).
- Place the fill hose in the graduated reservoir (1).
- Install the vacuum tank (2) on the graduated reservoir with the fill hose routed through the cut-out area (3) in the vacuum tank.
Attach the venturi assembly (1) to the vacuum tank (2).
Attach a shop air hose to the venturi assembly (1).
Ensure the valve (2) on the venturi assembly is closed.
Attach the vacuum hose (1) to the vacuum gauge assembly (2) and the vacuum tank (3).
Open the valve (1) on the venturi assembly (2). The vacuum gauge will begin to rise and a hissing noise will be present.
Continue to draw vacuum until the needle stops rising (1). This should be 610 - 660 mm Hg (24 - 26 in Hg).
Cooling hoses may start to collapse. This is normal due to vacuum draw.
- To aid in the fill process, position the graduated reservoir above the coolant fill port.
Slowly open the valve (1) on the vacuum gauge assembly (2). When the coolant reaches the top of the fill hose, close the valve. This will eliminate air from the fill hose.
- Close the valve on the venturi assembly.
- If there is a suspected leak in the cooling system, allow the system to stabilize under vacuum and monitor for vacuum loss.
- Open the valve on the vacuum gauge assembly. The vacuum gauge will drop as coolant is drawn into the system.
Once the vacuum gauge reaches zero (1), close the valve on the vacuum gauge assembly and repeat steps 13 - 16.
Detach the Vac-N-Fill gauge assembly from the GE-47716-30A Vac-N-Fill Adapter (1).
- Remove the GE-47716-30A Vac-N-Fill Adapter (1) from the intake manifold vacuum fitting (2).
- Remove the absorbent shop cloth from around the intake manifold vacuum fitting and wipe up any coolant spillage.
Rotate the intake manifold vacuum fitting (1) 90 degrees clockwise.
Intake Manifold Vacuum Fitting Cap (1) - Install
- Rinse away any excess coolant from the engine and the engine compartment.
Oil Filler Cap - Remove
- Intake Manifold Cover (2) - Install
- Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications
- Oil Filler Cap - Install
- Start the engine and check for coolant leaks.
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Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water.
Prior to installing the vacuum tank onto the graduated reservoir, ensure that the drain valve located on the bottom of the tank is closed.