What is the minimum brake shoe lining thickness for the LT18B rear drum brake?

The minimum lining thickness is 1.5 mm (0.059 in).

What are the torque specifications shown for the LT18B rear drum brake?

Three torque specs are shown: 6-8 N·m (0.6-0.8 kg-m, 4.3-5.8 ft-lb) for the plug, 7-9 N·m (0.7-0.9 kg-m, 5.1-6.5 ft-lb) for the bleeder, and 33-45 N·m (3.4-4.6, 25-33) for the back plate fasteners.

How do you adjust the shoe-to-drum clearance after installing new brake shoes?

Before installing new shoes, rotate the nut until the adjuster rod is at its shortest point. After installation is completed, adjust shoe-to-drum clearance by operating the parking brake several times.

Are the left and right brake adjusters the same?

No. The right brake uses a right thread adjuster and the left brake uses a left thread adjuster.

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Nissan Micra Rear Drum Brake (LT18B) Exploded Diagram - Shoe & Wheel Cylinder

Exploded view of rear drum brake LT18B with shoes, springs and wheel cylinder

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Exploded parts diagram of rear drum brake LT18B showing backing plate, shoes, springs, adjuster and wheel cylinder with torque values.

AI caption November 2005 · Photo 296 of 412

This is page BR-12 of a Nissan service manual covering the rear drum brake, type LT18B. The page presents an exploded parts diagram of the rear drum brake assembly, labeling all components: plug, back plate, anti-rattle pin, bleeder cap, bleeder, dust cover, piston, piston cup, wheel cylinder body, spring, pin, toggle lever, adjuster (right thread adjuster for the right brake, left thread adjuster for the left brake), toggle lever spring, shoe, washer, clip, anti-rattle spring, retainers, and return springs (coil type and U-type). Torque specifications are given: 6-8 N·m (0.6-0.8 kg-m, 4.3-5.8 ft-lb), 7-9 N·m (0.7-0.9 kg-m, 5.1-6.5 ft-lb), and 33-45 N·m (3.4-4.6 kg-m, 25-33 ft-lb). The minimum shoe lining thickness is 1.5 mm (0.059 in). A note states there is no interchangeability between NABCO make and TOKICO make wheel cylinders. Legend symbols indicate rubber grease points, brake grease points, and torque units. Text sections cover Shoe Replacement (rotate nut until adjuster rod is at its shortest point before installing new shoes; adjust shoe-to-drum clearance by operating the parking brake several times) and Wheel Cylinder Inspection (check parts for score, wear or damage and replace if observed). Diagram reference: SBR103A.

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Frequently asked questions

What is the minimum brake shoe lining thickness for the LT18B rear drum brake?: The minimum lining thickness is 1.5 mm (0.059 in).
What are the torque specifications shown for the LT18B rear drum brake?: Three torque specs are shown: 6-8 N·m (0.6-0.8 kg-m, 4.3-5.8 ft-lb) for the plug, 7-9 N·m (0.7-0.9 kg-m, 5.1-6.5 ft-lb) for the bleeder, and 33-45 N·m (3.4-4.6, 25-33) for the back plate fasteners.
Are NABCO and TOKICO wheel cylinder parts interchangeable?: No. The diagram notes there is no interchangeability between NABCO make and TOKICO make.
How do you adjust the shoe-to-drum clearance after installing new brake shoes?: Before installing new shoes, rotate the nut until the adjuster rod is at its shortest point. After installation is completed, adjust shoe-to-drum clearance by operating the parking brake several times.
Are the left and right brake adjusters the same?: No. The right brake uses a right thread adjuster and the left brake uses a left thread adjuster.