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SMU - Revised Hydraulic and DIsc Brake Specifications

Subject:Revised Hydraulic & Disc Brake Specifications

Models:2000 Buick Century, Regal



This bulletin is being issued to correct the Hydraulic and Disc Brake Specifications. Please use the following to replace the existing information in the Hydraulic Brake and Disc Brake sub-sections of the Service Manual.

Disc Brake Component Specifications

Application

Specification

Metric

English

Front Brakes

  • Rotor Discard Thickness (see note)

30.7 mm

1.21 in

  • Minimum Rotor Thickness

31.7 mm

1.25 in

  • Rotor Thickness (new)

32.2 mm

1.27 in

Maximum Lateral Runout

0.080 mm

0.003 in

Maximum Scoring

1.50 mm

0.059 in

Thickness Variation

0.013 mm

0.0005 in

Rear Brakes

  • Discard Thickness (see note)

9.0 mm

0.35 in

  • Minimum Wear Thickness

10.6 mm

0.41 in

  • Rotor Thickness (new)

11.0 mm

0.43 in

Important: All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum or discard thickness specifications after refinish.

Hydraulic Brake Fastener Tightening Specifications

Application

Specification

Metric

English

Brake Hose Bolt at Front Brake Caliper

54 N·m

40 lb ft

Brake Hose Bolt at Rear Brake Caliper

54 N·m

40 lb ft

Brake Pedal Bolt and Nut

40 N·m

30 lb ft

Brake Pipe Fittings / Tube Nut (at the wheels.)

15 N·m

11 lb ft

Brake Pipe Fittings / Tube Nut (at ABS Modulator.)

24 N·m

18 lb ft

J 22805-01 to Brake Booster Mounting Nuts

25 N·m

18 lb ft

Hydraulic Brake System Specifications

Application

Specification

Metric

English

Brake Pedal Travel

74 mm

2.91 in

Disc Brake Fastener Tightening Specifications

Application

Specification

Metric

English

Front Brakes

  • Caliper Bolts

85 N·m

63 lb ft

  • Caliper Bracket Bolts

180 N·m

133 lb ft

Rear Brakes

  • Caliper Bolts

44 N·m

32 lb ft

  • Caliper Bracket Bolts

115 N·m

85 lb ft

  • Rotor/J 37160-A Nut

34 N·m

25 lb ft