898103208 Mercury SCREW

2. Loosen the clamps (4) on each end of tube (3). Remove bolt (1) from clip. Remove tube (3).3. Remove tube assembly (2). 4. Remove tube assemblies (6) and (7) from engine.5. Disconnect temperature sending unit (5) from the cylinder head. 6. Remove regulator housing (9) and the water temperature regulator from the cylinder head.7. Remove two bolts (8) and gasket. 8. Fasten a hoist to cylinder head (10). 9. Remove bolts (11) that hold the cylinder head to the cylinder block. Remove the cylinder head and gasket. The weight of the cylinder head is 150 lb. (68 kg). When the cylinder head is removed, a new spacer plate gasket must be installed. See REMOVE AND INSTALL SPACER PLATE.Install Cylinder Head
When the cylinder head is removed, a new spacer plate gasket must be installed. See REMOVE AND INSTALL SPACER PLATE. 1. Clean the surfaces of the cylinder head and the cylinder block that make contact with each other. Make sure the surfaces are clean and dry. Install a new, dry gasket (3) on the cylinder block.2. Make sure the gasket for elbow (2) is in position.3. Fasten a hoist to cylinder head (1) and put it in position on the cylinder block.4. Put 5P3931 Anti-Seize Compound on all the head bolts and rocker shaft bolts. Install the head bolts and washers that hold the head in place. Do not tighten bolts at this time. 5. Install push rods (5) and rocker shaft assembly (4). Install the bolts and washers that hold the rocker shaft assembly in place. 6. Tighten the bolts as follows: a) Tighten bolts 1 through 18 in number sequence to a torque of 115 lb.ft. (155 N m).b) Tighten bolts 1 through 18 again in number sequence to a torque of 185 13 lb.ft. (250 17 N m).c) Tighten bolts 1 through 18 again in number sequence (hand tighten only) to a torque of 185 13 lb.ft. (250 17 N m).d) Tighten bolts A through E in letter sequence to a torque of 32 lb.ft. (43 7 N m).e) Tighten bolts A through E again in letter sequence to a torque of 32 lb.ft. (43 7 N m).7. Make adjustments until the intake valve clearance is .015 in. (0.38 mm) and the exhaust valve clearance is .025 in. (0.64 mm). See ENGINE VALVE LASH as shown in LUBRICATION AND MAINTENANCE GUIDE. Tighten the locknuts for the adjustment screws to a torque of 21 5 lb.ft. (29 7 N m). 8. Install two bolts (7) in elbow.9. Install the water temperature regulator (8) in the cylinder head with the spring toward the inside as shown.
If the water temperature regulator is installed wrong, it will cause the engine to overheat.
10. Install gasket (9) and housing (6) on cylinder. 11. Put tube (10) in position on the engine. Slide hoses (12) in place. Tighten clamps (11) on each end of tube. Install the bolt that holds the clip to the fuel tank. 12. Install the temperature sending unit (13).13. Install tube assemblies (14) and (15) to the air compressor.end by:a) install exhaust manifoldb) install fuel injection linesc) install air cleaner housing