Corvette V8-5.7L VIN G (1997)
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Tighten the brake caliper bleed screw to 12 Nm (106 inch lbs.).
NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners
requiring replacement, or 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 installing fasteners in order to avoid
damage to parts and system.
9. Repeat Steps 6 through 8 until all calipers have been bled.
10. Lower vehicle.
11. Check the brake pedal for sponginess. Auto bleed the modulator and repeat the entire bleeding procedure to correct this condition.
12. Remove the brake bleeding equipment from the master cylinder.
Manual Bleeding
NOTE:
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It may be necessary to bleed the hydraulic system at all four brakes if air has been introduced through low fluid level or by disconnecting brake
pipes at the master cylinder. If a brake hose is disconnected at one wheel, only that wheel caliper needs to be bled. If brake pipes or hoses are
disconnected at any fitting located between master cylinder and brakes then the brake system served by the disconnected pipe or hose must be
bled.
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The time required to bleed the hydraulic system can be reduced if the master cylinder reservoir is filled with brake fluid and as much air as
possible is expelled before the master cylinder is installed on the vehicle. Pumping the piston can evacuate the air from the piston cavities.
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Power brakes require the vacuum reserve be depleted by applying the brakes several items with the engine off. Care must be taken to prevent brake
fluid from contacting any painted surface.
PROCEDURE
1. Fill the master cylinder reservoir with brake fluid and keep the reservoir at least half full of fluid during the bleeding operation.
2. If the master cylinder is known or suspected to have air in the bore, then it must be bled in the following manner, before bleeding any caliper:
a. Disconnect the forward (blind end) brake pipe connection at the master cylinder.
b. Allow the brake fluid to fill the master cylinder piston bore until it begins to flow from the forward pipe connector port.
c. Connect the forward brake pipe to the master cylinder and tighten.
d. Depress the brake pedal slowly one time and hold. Loosen the forward brake pipe connection at the master cylinder to purge air from the bore.
Tighten the connection and then release the brake pedal slowly. Wait 15 seconds. Repeat the sequence, including the 15 second wait, until all
air is removed from the bore.
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Tighten the brake pipe tube nut to 16 Nm (12 ft. lbs.).
CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application.
Fasteners requiring replacement, or 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
installing fasteners in order to avoid damage to parts and system.
e. When clear fluid flows from the forward connection, repeat Steps 1 and 2 to bleed the master cylinder at the rear (cowl) connection.
3. Individual brake calipers are bled only after all air is removed from the master cylinder. If it is known that the brake calipers do not contain any
air, then it will not be necessary to bleed them.
