86731 Mercury RETAINING RING, THROTTLE/ADVANCE LINK

Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6195 Valve Spring Compressor 1 Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean the bottom face of the cylinder head. Check the depth of the valves below the face of the cylinder head before the valve springs are removed. Refer to Specifications, "Cylinder Head Valves" for the correct dimensions.
Place an identification mark on the heads of the valves for installation purposes. Note: The head of the inlet valve has a larger diameter than the head of the exhaust valve.
Position the cylinder head on a suitable surface with the valve springs facing upward. Note: Ensure that the machined face of the cylinder head is kept on a clean, soft surface in order to prevent damage to the machined surface.
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Illustration 1 g01129177
Typical example
Install tool (A) in position on the cylinder head in order to compress the appropriate valve spring (3).
Ensure that the valve spring is compressed squarely or damage to the valve stem may occur.
Apply pressure to tool (A). Remove the valve keepers (1).
Slowly release the pressure on tool (A).
Illustration 2 g01129220
Typical example
Remove the valve spring retainer (2).
Remove valve spring (3).
Repeat steps 4 to 8 for the remaining valves.
Remove tool (A).
Remove the valve stem seals (4).
Carefully turn over the cylinder head.
Remove the valves (5). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 9U-6195 Valve Spring Compressor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean all parts. Ensure that all ports, all coolant passages and all lubrication passages are free from debris. To inspect the cylinder head, refer to Systems Operation, Testing and Adjusting, "Cylinder Head Inspect" for further information.
Inspect all of the valve seats for wear and for damage. Refer to Specifications, "Cylinder Head Valves" and refer to Systems Operation, Testing and Adjusting, "Valve Depth - Inspect " for further information.
Inspect all of the valve guides for wear and for damage. Refer to Specifications, "Cylinder Head Valves" and refer to Systems Operation, Testing and Adjusting, "Valve Guide - Inspect" for further information.
Illustration 3 g01129220
Typical example
Lubricate the stems of all valves (5) with clean engine oil. Install the valves (5) in the appropriate positions.
Carefully turn over the cylinder head and ensure that all of the valves remain in place.
Use a suitable tool to install the new valve stem seals (4) onto each of the valve guides. Note: The outer face of the valve guides must be clean and dry before installing the valve stem seals (4). The inlet valve stem and the exhaust valve stem use seals that are different parts.
Inspect the valve springs (3) for wear and for the correct installed length. Refer to Specifications, "Cylinder Head Valves " for further information.
Install the valve spring (3) onto the cylinder head.
Install the valve spring retainer (2).
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Illustration 4 g00825742
Typical example
Install tool (A) in position on the cylinder head in order to compress the appropriate valve sp