Volkswagen Air-Cooled 1970-1981 Repair Guide

Wheel Cylinder

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REMOVAL & INSTALLATION



See Figures 1 through 9

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Fig. Fig. 1: Use a suitable brake component cleaner to remove all brake dust from the components-do not use compressed air to blow the brake dust off of the components



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Fig. Fig. 2: It is also possible to remove the brake shoes by first disconnecting the parking brake cable from the brake shoe ...



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Fig. Fig. 3: ... then use the special tool to twist the hold-down spring cap until the slot is aligned with the tangs on the hold-down spring pin ...



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Fig. Fig. 4: ... and remove the hold-down spring from both brake shoes



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Fig. Fig. 5: At this point, the brake shoe assembly can be removed as a whole from the backing plate ...



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Fig. Fig. 6: ... and dismantled on a clean workbench



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Fig. Fig. 7: If, however, the backing plate needs to be removed, or if the rear bearings need servicing, simply remove the 4 bearing cap retaining bolts ...



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Fig. Fig. 8: ... and remove the bearing cap



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Fig. Fig. 9: At this point, the entire backing plate/brake assembly can be removed from the rear axle shaft/bearing unit, and can be disassembled on a workbench


CAUTION
WARNING Clean, high quality brake fluid is essential to the safe and proper operation of the brake system. You should always buy the highest quality brake fluid that is available. If the brake fluid becomes contaminated, drain and flush the system, then refill the master cylinder with new fluid. Never reuse any brake fluid. Any brake fluid that is removed from the system should be discarded.

Remove the brake drum and brake shoes. Disconnect the brake line from the cylinder and remove the bolts which secure the cylinder to the backing plate. Remove the cylinder from the vehicle.

OVERHAUL



See Figures 10 and 11

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Fig. Fig. 10: Exploded view of the wheel cylinder used on the front of Type 1 models and on the rear of Types 1, 3 and 4 models



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Fig. Fig. 11: Exploded view of the rear wheel cylinder used on Type 2 models

Overhaul is the same as given in the Front Drum Brake portion of this section.

 
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