Nissan Z - ZX 1970-1988 Repair Guide

Brake and Clutch Master Cylinders



See Figures 1, 2 and 3

Check the levels of brake fluid in the brake and clutch master cylinder reservoirs every 3,000 miles (4,800 km). The fluid should be maintained at a level not below the bottom line on the reservoirs and not above the top line. Any sudden decrease in the level in any of the reservoirs indicates a probable leak in that particular system and should be checked out immediately.

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Fig. Fig. 1: Check the fluid level in the brake master cylinder and, if equipped, the clutch master cylinder

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Fig. Fig. 2: Remove the brake fluid reservoir cap and check the level, color and condition of the fluid

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Fig. Fig. 3: Add enough fluid to bring the level to the correct height, but do not overfill

When adding fluid, use only fresh, uncontaminated brake fluid, meeting or exceeding DOT 3 standards.

Be careful not to spill any brake fluid on painted surfaces, since it eats paint.

Do not allow the fluid container or master cylinder reservoirs to remain open any longer than necessary; brake fluid absorbs moisture from the air, reducing its effectiveness and causing brake and clutch line corrosion.