Removal & Installation (Civic Si & Hatchback)
Remove air cleaner assembly. Disconnect brake fluid level sensor connector. See Fig 1 . Remove clutch reservoir and engine wire harness clip from master cylinder mounting base. Remove reservoir cap and brake fluid from reservoir. Remove reservoir on master cylinder mounting base. Disconnect brake lines from master cylinder. Use shop towels to prevent spillage. Remove master cylinder mounting nuts and washers. Remove master cylinder from brake booster. Be careful not to damage brake lines when removing. Remove rod seal from master cylinder. Install in reverse order of removal.
NOTE:
Replace all rubber parts with NEW ones whenever removed. Coat lip of new rod seal with recommended seal grease in master cylinder set. Install rod seal onto brake booster with its grooved side toward master cylinder. Check pushrod clearance before installing master cylinder, and adjust if necessary. See MASTER CYLINDER PUSHROD
under ADJUSTMENTS. Check brake pedal height and free play.