Mercury 8L8Z-6758-A Tube Assembly

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Installation is the reverse of removal.

When working with fuel hoses, be prepared to catch spilled fuel, as fuel lines are typically pressurized. Examine all flexible fuel lines for signs of deterioration, chafing, and cracks, especially near bends and fittings. When replacing fuel hoses, use hose specifically designed for your fuel injection system. Replace spring-type clamps with screw clamps, and use a special tool for spring-lock type couplings.

Disconnect the PCV hose from the PCV valve and from the intake manifold.

When inspecting metal lines, check for bending, crimping, or cracking. For replacement, use seamless steel tubing. Specifically, for brake lines, inspect for cracks and loose fittings where they enter the master cylinder and brake proportioning unit. Any brake fluid leakage should be addressed promptly with a comprehensive brake system inspection.