39625 Mercury GASKET, WATER PUMP BASE TO FACE PLATE (LOWER)

start by:a) remove valve covers1. Remove fuel line (2) with tool (B). Put protective caps on all fuel openings. 2. Make a separation between rocker arm (1) and the push rod with tool (A). Put identification on each valve bridge as to its location. Remove valve bridges (3). 3. Disconnect fuel lines (4) from fuel line adapters (5). Remove locks (6). Remove adapters (5).4. Remove bolts (8) that hold the rocker shaft assembly (7) to the cylinder head. Remove rocker shaft assembly (7).Install Rocker Shaft Assembly
1. Put rocker shaft assembly (2) into position on the head.2. Put clean engine oil on the threads of bolts (1) and tighten evenly to a torque of 200 20 lb.ft. (270 25 N m). Tighten the bolts again to a torque of 330 15 lb.ft. (450 20 N m). Tighten the bolts again to a torque of 330 15 lb.ft. (450 20 N m). 3. Put clean engine oil on the O-ring for adapter (5). Install adapters (5) and locks.4. Connect fuel lines (3) to adapters (5). Tighten fuel line nuts to a torque of 30 5 lb.ft. (40 7 N m) with tool (B).5. Put clean engine oil on the valve bridge dowels. Install valve bridges (7) in their correct locations on the cylinder head.6. Put clean engine oil on the valve bridges. Make a connection between the rocker arms (4) and push rods with tool (A).7. Make an adjustment of the valves to have a clearance of .015 in. (.038 mm) for intake and .030 in. (0.76 mm) for exhaust. See VALVE CLEARANCE SETTING in TESTING AND ADUSTING.8. Install the fuel lines to fuel valves (6). Tighten the fuel line nuts to a torque of 30 5 lb.ft. (40 7 N m) with tool (B).Disassemble Rocker Shaft Assembly
start by:a) remove rocker shaft assembly 1. Remove retainer (1) from the end of the shaft.2. Remove the washers and rocker arm (2). 3. Use tool (A) to remove the pin that holds bracket (3) to the rocker arm shaft.4. Remove bracket (3), rocker arm (4) and the spring.5. Remove the remainder of the rocker arms. The center brackets do not have pins.Assemble Rocker Shaft Assembly
Make sure all parts of the rocker shaft assembly are clean before assembly.1. Put clean engine oil on shaft (3).2. Install the center springs, rocker arms and bracket. 3. Install spring (1), rocker arm (4) and bracket (2).4. Put tape around the shaft on each side of bracket (2) as shown. Put the hole in bracket (2) in alignment with the hole in shaft (3). Put a mark on each piece of tape in alignment with the hole in bracket (2). 5. Install pin (5) until it is extended .34 in. (8.6 mm) above the surface of bracket (2). Make sure pin (5) is in alignment with the marks on the tape before pin is installed. Remove the tape.6. Install rocker arm (6), washers (7) and retainer (8). Install enough washers until the end play on each end of the shaft is .005 - .040 in. (0.12 - 1.01 mm).end by:a) install rocker shaft assembly