27791 Mercury SCREW

Typical Illustration(1) Torque for nuts that hold the fuel injection lines to the injection pumps and nozzles ... 40 7 N m (29 5 lb ft)(2) Tighten four bolts to a torque of ... 55 10 N m (40 7 lb ft)(3) Torque for locknut that holds the inner fuel line to the valve cover base ... 30 7 N m (22 5 lb ft)(4) Torque for nozzle retainer on nozzle adapter ... 48 7 N m (35 5 lb ft)
Be sure the fuel injection line clamps are installed in the correct locations. Incorrectly installed clamps may allow the fuel injection lines to vibrate and become damaged. The damaged lines may leak and cause a fire.
Front end of engine is opposite to flywheel end. Left side and right side of engine are as seen from flywheel end.(1) Clamp location dimensions are in reference to a vertical line (1) through the center of the number one and number eight fuel pump outlets.Align brackets in position to fuel lines such that when the fasteners are tightened no strain will be added to the fuel lines while tightening fasteners.(A) ... 177 3 mm (7.0 .1 in)(B) ... 200 3 mm (7.9 .1 in)(C) ... 230 3 mm (9.1 .1 in)(D) ... 254 3 mm (10.0 .1 in)(E) ... 264 3 mm (10.4 .1 in)(F) ... 286 3 mm (11.3 .1 in)(G) ... 312 3 mm (12.3 .1 in)(H) ... 403 3 mm (15.9 .1 in)(I) ... 686 3 mm (27.0 .1 in)(J) ... 711 3 mm (28.0 .1 in)(K) ... 92 3 mm (3.6 .1 in)(L) ... 197 3 mm (7.8 .1 in)(M) ... 224 3 mm (8.8 .1 in)(N) ... 233 3 mm (9.2 .1 in)(O) ... 254 3 mm (10.0 .1 in)(P) ... 283 3 mm (11.1 .1 in)(Q) ... 344 3 mm (13.5 .1 in)(R) ... 384 3 mm (15.1 .1 in)(S) ... 466 3 mm (18.3 .1 in)(T) ... 708 3 mm (27.9 .1 in)Tighten metal-to-metal clamps to a torque of ... 2.3 N m (20 lb in) The 6V4980 Torque Screwdriver Tool Group is available for applying the correct torque.(2) Clamp location dimensions are in reference to a horizontal line (2) through the center of the No. 1 fuel pump outlet.(U) ... 2 3 mm (.08 .1 in)(V) ... 18.5 3 mm (.73 .1 in)(3) Clamp location dimensions are in reference to a horizontal line (3) through the center of the number eight fuel pump outlet.(W) ... 45 3 mm (1.8 .1 in) The 6V4980 Torque Screwdriver Tool Group is available for applying the correct torque.