1. Secure two 1⁄8"-27 NPTF x #4 SAE 37˚ flare connectors to the 1⁄8"-27 NPTF tee as shown in the installation above.
NOTE: The connector flare (37˚) must be compatible with the ends on the stainless steel braided tubing. Auto Meter braided stainless steel tubing no. 3227 and 3228 include #4 SAE 37˚ flare female swivel ends.
2. Drill 3⁄8" dia. hole and install rubber grommet where pressure line passes through firewall into engine compartment.
3. Secure two 1⁄8"-27 NPT female x SAE 37˚ male flare connectors to the check valve as shown above. Secure the check valve and connector assembly to one end of a length of braided stainless steel tubing.
NOTE: The arrow on the check valve must be pointing toward the gauge as shown in the diagram above.
4. Secure the opposite end of the tubing and check valve assembly to the tee on the back of the gauge. Route the pressure line through the firewall into the engine compartment. Connect another length of braided stainless steel tubing between the check valve and the blower outlet port.
NOTE: Keep line clear of moving parts or hot engine components.
5. Secure a 1⁄8"-27 NPTF female x SAE male flare connector to the bleed valve.
6. Using the nut and lock washer provided, secure the bleed valve and connector assembly in-dash or wherever it is convenient for the driver.
7. Connect length of braided stainless steel tubing between the tee on back of gauge and the bleed valve.
8. Start engine and thoroughly check for any leaks. When engine is shut off, gauge should not leak down until bleed valve is pushed. If gauge leaks, check and tighten all connections.
9. Connect the WHITE light wire to dash lighting circuit or other 12V source.
10. Connect the BLACK light wire to a good engine ground. (which applicable)
Brake Pressure Gauges
WARNING: ONLY double flared steel brake line may be used to install this gauge. All fittings you use must have a minimum working pressure of 2000 PSI.
1. If you are not familiar with proper brake system bleeding procedure, do not install this gauge. Have a qualified mechanic do it for you.
2. Install gauge in appropriately sized dashboard hole or use under dash panels. Secure gauge with the mounting bracket provided. NOTE: If alternate gauge mounting is used other than in-dash or under dash, mounting provisions may have to be determined by the installer.
3. Secure bleed screw, bleed screw bushing, and brake line fitting to the tee provided with the gauge as shown above.
4. Secure the tee assembly from Step 3 to the gauge port. Be sure not to over tighten as this can cause the movement to loosen in the case.
5. Install a tee at the brake system location suitable for your application.
6. Install steel double flare brake line between gauge and tee.
7. Connect WHITE light wire to the dash lighting circuit or other 12V source. Connect the BLACK light wire to a suitable ground. (which applicable)
8. Bleed your gauge and brake system using standard brake bleeding procedure. If you are not familiar with brake bleeding procedure, have a qualified mechanic install this gauge for you.