Toyota Celica/Supra 1971-1985 Repair Guide

Brake and Clutch Master Cylinders



See Figures 1, 2, 3 and 4

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Fig. Fig. 1: The brake master cylinder is much larger than the clutch master cylinder

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Fig. Fig. 2: Lift off the reservoir lid to fill

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Fig. Fig. 3: Top off the brake fluid reservoir to the full line

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Fig. Fig. 4: The clutch master cylinder has a float in the reservoir

The brake and clutch master cylinders are located under the hood, in the left rear section of the engine compartment. They are made of translucent plastic so that the levels may be checked without removing the tops. The fluid level in both reservoirs should be checked at least every 15,000 miles (24,000 km). The fluid level should be maintained at the upper most mark on the side of the reservoir Any sudden decreases in the level indicates a possible leak in the system and should be checked out immediately.

Some models may have two reservoirs for the brake master cylinder. Automatic transmission equipped cars, of course, do not have a clutch master cylinder.

When making additions of brake fluid, use only fresh, uncontaminated brake fluid meeting or exceeding DOT 3 standards. Be careful not to spill any brake fluid on painted surfaces, as it eats the paint. Do not allow the brake fluid container or the master cylinder reservoir to remain open any longer than necessary; brake fluid absorbs moisture from the air, reducing its effectiveness and causing corrosion in the lines.