Master cylinder | |||||||||
Type | Tandem type | ||||||||
I.D. | 23.8 mm (0.94 in.) : CBS 25.4 mm (1.0 in.) : ABS | ||||||||
Fluid level sensor | Provided | ||||||||
Brake booster | |||||||||
Type | Vacuum type with tandem booster | ||||||||
Effective dia. | 8 + 9 in. | ||||||||
Boosting ratio | 7.5 : 1 | ||||||||
Proportioning valve | |||||||||
Cut-in pressure | 5.4 MPa (5.5 kg/cm², 728 psi) | ||||||||
Decompression ratio | 0.32 : 1 | ||||||||
Front brake | |||||||||
Type | Floating type with ventilated disc | ||||||||
Disc O.D. | 276 mm (10.87in.) | ||||||||
Disc thickness | 26 mm (1.02 in.) | ||||||||
Pad thickness | 10.5 mm (0.413 in.) | ||||||||
Cylinder I.D. | 42.9 mm (1.689 in.) x 2 | ||||||||
Rear disk brake | |||||||||
Type | Floating type with solid disc | ||||||||
Disc O.D. | 262 mm (10.31 in.) | ||||||||
Disc thickness | 10 mm (0.39 in.) | ||||||||
Pad thickness | 10 mm (0.39 in.) | ||||||||
Cylinder I.D. | 34 mm (1.34 in.) | ||||||||
Parking brake | |||||||||
Actuation | Mechanical brake acting on rear wheels | ||||||||
Type | Lever type (M/T), Foot type (A/T) | ||||||||
Cable arrangement | V type | ||||||||
Standard value | Service limit | |||||||||
Brake pedal height | 176 ± 0.3mm | |||||||||
Clearance between stop lamp switch outer case and pedal stopper | 0.5-1.0 mm (0.020-0.040 in.) | |||||||||
Brake pedal free play | 3-8 mm (0.117-0.312 in.) | |||||||||
Clearance between booster push rod and master cylinder piston | 0 (at 500 mmHg vacuum) | |||||||||
Service limit | ||||||||||
Front disc brake pad thickness | 10.5 mm (0.413 in.) | 2.0 mm (0.079 in.) | ||||||||
Front disc thickness (minimum) | 26 mm (1.02 in.) | 24.4 mm (0.96 in.) | ||||||||
Front disc runout | - | 0.03 mm ( 0.0012 in.) | ||||||||
Front disc thickness variation | - | 0.005 mm (0.0002 in.) | ||||||||
Clearance between wheel cylinder and piston | - | 0.15 mm (0.006 in.) | ||||||||
Rear disc brake pad thickness | 10 mm (0.39 in.) | 2.0 mm (0.079 in.) | ||||||||
Rear disc thickness | 10 mm (0.39 in.) | 2.0 mm (0.079 in.) | ||||||||
Nm | Kg·cm | lb·ft | |
Master cylinder to booster mounting nut | 8-12 | 80-120 | 6-9 |
Brake booster mounting nut | 13-16 | 130-160 | 10-12 |
Brake booster vacuum hose fitting to surge tank | 15-18 | 150-180 | 11-13 |
Bleeder screw | 7-9 | 70-90 | 5-7 |
Brake flare nut, brake hose | 13-17 | 130-170 | 10-12 |
Caliper guide rod bolt | 65-75 | 650-750 | 48-56 |
Caliper assembly to knuckle | 65-75 | 650-750 | 48-56 |
Brake hose to front caliper | 25-30 | 250-300 | 18-22 |
Wheel cylinder mounting bolt | 12-18 | 120-180 | 8.8-13 |
Trouble symptom | Probable cause | Remedy |
Vehicle pulls to one side when brakes are applied | Grease or oil on pad or lining surface | Replace |
Inadequate contact of pad or lining | Correct | |
Auto adjuster malfunction | Adjust | |
Imbalance of tire pressure | Correct | |
Insufficient braking power | Low or deteriorated brake fluid | Refill or change |
Air in brake system | Bleed air | |
Overheated brake rotor due to dragging of pad or lining | Correct | |
Grease or oil on pad or lining surface | Correct | |
Inadequate contact of pad or lining | Adjust | |
Brake booster malfunction | Correct | |
Auto adjuster malfunction | Adjust | |
Clogged brake line | Correct | |
Proportioning valve malfunction | Replace | |
Increased pedal stroke required (Clearance between reduced pedal and floorboard) | Air in the brake system | Bleed air |
Worn lining or pad | Replace | |
Broken vacuum hose | Replace | |
Brake fluid leaks | Correct | |
Auto adjuster malfunction | Adjust | |
Clearance between excessive push rod and master cylinder | Adjust | |
Faulty master cylinder | Replace | |
Brake drag | Incomplete release of parking brake | Correct |
Incorrect parking brake adjustment | Adjust | |
Worn brake pedal return spring | Replace | |
Broken rear drum brake shoe return spring | Replace | |
Lack of lubrication in sliding parts | Lubricate | |
Improper clearance between push rod and master cylinder | Adjust | |
Faulty master cylinder piston return spring | Replace | |
Clogged master cylinder return port | Correct | |
Insufficient parking brake function | Worn brake lining or pad | Replace |
Excessive parking brake lever stroke | Adjust the parking brake lever stroke or check the parking brake cable routing | |
Incorrect bed-in after replacement of lining | Do the lining bed-in | |
Grease or oil on lining or pad surface | Replace | |
Auto adjuster malfunction | Adjust | |
Parking brake cable sticking | Replace | |
Scraping or grinding noise when brakes are applied | Worn brake lining or pad | Replace |
Caliper to wheel interference | Correct or replace | |
Dust cover to disc interference | Correct or replace | |
Bent brake backing plate | Correct or replace | |
Cracked drums or brake disc | Correct or replace | |
Squealing, groaning or chattering noise when brakes are applied | Worn brake pad anti-squeak shim | Replace |
Worn or scored brake drums and linings, discs and pads | Correct or replace | |
Improper lining parts | Correct or replace | |
Burred disc brake or rusted calipers | Clean or deburr | |
Dirty, greased, contaminated or glazed linings | Clean or replace | |
Weak, damaged drum brakes or incorrect shoe hold-down springs, loose or damaged shoe hold-down pins and springs | Correct or replace | |
Squealing noise when brakes are not applied | Bent or warped backing plate causing interference with drum | Replace |
Improper machining of drum causing interference with backing plate or shoe | Replace drum | |
Disc brakes-rusted, stuck | Lubricate or replace | |
Weak, damaged drum brakes or incorrect shoe-to-shoe spring | Replace | |
Loose or extra parts in brakes | Retighten | |
Improper positioning of pads in caliper | Correct | |
Improper installation of support mounting to caliper body | Correct | |
Squealing noise when brakes are not applied | Poor return of brake booster or master cylinder or wheel cylinder | Replace |
Incorrect brake pedal or booster push rod | Adjust | |
Groaning, clicking or rattling noise when brakes are not applied | Stones or foreign substances trapped inside wheel covers | Remove foreign substances |
Loose wheel nuts | Retighten | |
Disc brakes failure of shim | Replace | |
Loose disc brakes installation bolt | Retighten | |
Worn, damaged or dry wheel bearings | Lubricate or replace | |
Worn disc brakes on guide rod | Replace | |
Incorrect brake pedal or booster push rod | Adjust |
Recommended lubricant | Quantity | |
Brake fluid | DOT 3 or DOT 4 | As required |
Brake pedal bushing and brake pedal bolt | Chassis grease SAE J310, NLGI No.0 | As required |
Clevis pin | Wheel bearing grease SAE J310, NLGI No.2 | As required |
Parking brake shoe and backing plate contact surfaces | Bearing grease, NLGI No.0-1 | As required |
