821875F 1 Mercury UPPER CAP

Illustration 1 g01035860
Note: Use engine oil to lubricate the threads of the cylinder head bolts prior to installation.The tightening sequence for the cylinder head bolts follows:
Tighten bolt (1) through bolt (10) in a numerical sequence.Torque for bolts ... 270 25 N m (200 18 lb ft)
Again, tighten bolt (1) through bolt (10) in a numerical sequence.Torque for bolts ... 450 20 N m (330 15 lb ft)
Finally tighten bolt (1) through bolt (10) in a numerical sequence.Torque for bolts ... 450 20 N m (330 15 lb ft)
Install the rocker arm assemblies onto the cylinder head.
Tighten bolts (11) through bolt (18) in a numerical sequence.Torque for bolts ... 270 25 N m (200 18 lb ft)
Again tighten bolts (11) through bolt (18) in a numerical sequence.Torque for bolts ... 450 20 N m (330 15 lb ft)
Finally tighten bolts (11) through bolt (18) in a numerical sequence.Torque for bolts ... 450 20 N m (3330 15 lb ft)
Tighten bolts (19). Use any tightening sequence.Torque for bolts ... 47 7 N m (34 5 lb ft)If equipped, use the following procedure in order to tighten the bracket for the fuel pump and the bracket for the timing cover to the cylinder heads:Note: The first four bolts (either cylinder head) toward the front of the engine are used in order to secure the brackets for the timing cover and the fuel pump to the engine.
Position the mounting brackets over the bolt holes that are in the cylinder head. Install the cylinder head bolts through the bracket. Finger tighten the bolts.
Align the fuel pump or the timing cover against the mounting brackets and install the mounting bolts. Finger tighten the bolts.
Tighten the cylinder head bolts.Torque for bolts ... 47 7 N m (34 5 lb ft)
Torque the mounting bolts for the fuel pump or the timing cover to the standard torque. (20) Tighten the exhaust manifold studs into each cylinder head to the following torque. ... 35 5 N m (26 4 lb ft)
Illustration 2 g01017447
(A) Height of new cylinder head ... 112.78 0.25 mm (4.440 0.010 inch)
Illustration 3 g01017453
Note: Use 6V-6640 RTV Silicone Sealant on the plugs. (B) The plugs are installed into the cylinder head at the following depth. ... 4.5 0.5 mm (0.18 0.02 inch) (C) The plugs are installed into the cylinder head at the following depth. ... 2.0 0.5 mm (0.08 0.02 inch)
Illustration 4 g01017394
(29) Tighten the adapter to the following torque. ... 200 14 N m (147 10 lb ft) (30) Apply liquid soap to the O-ring seal and to the bore of the cylinder head prior to installation of the adapter. (31) Apply 5P-3931 Anti-Seize Compound onto the threads of the adapter prior to installation.3412
Illustration 5 g01035834
Note: Use engine oil to lubricate the threads of the cylinder head bolts prior to installation.The tightening sequence for the cylinder head bolts follows:
Tighten bolt (1) through bolt (20) in a numerical sequence.Torque for bolts ... 280 27 N m (207 20 lb ft)
Again tighten bolts (1) through bolt (20) in a numerical sequence.Torque for bolts ... 440 20 N m (325 15 lb ft)
Finally tighten bolts (1) through bolt (20) in a numerical sequence.Torque for bolts ... 440 20 N m (325 15 lb ft)
Install the rocker arm assemblies onto the cylinder head.
Tighten bolts (21) through bolt (26) in a numerical sequence.Torque for bolts ... 280 27 N m (207 20 lb ft)
Again tighten bolts (21) through bolt (26) in a numerical sequence.Torque for bolts ... 440 20 N m (325 15 lb ft)
Finally tighten bolts (21) through bolt (26) in a numerical sequence.Torque for bolts ... 440 20 N m (325 15 lb ft)
Tighten bolts (27) .Torque for bolts ... 44 7 N m (32 5 lb ft)If equipped, use the following procedure in order to tighten the bracket for the fuel pump and the bracket for the timing cover to the cylinder heads:Note: The first four bolts (either cylinder head) toward the front of the engine are used in order to secure the brackets for the timing cover and the fuel pump to the engine.
Position the mounting brackets over the bolt holes. Install the cylinder head bolts. Finger tighten the bolts.
Align the fuel pump, or the timing cover, against the mounting brackets and install the mounting bolts. Finger tighten the bolts.
Tighten the cylinder head bolts for the brackets.Torque for bolts ... 44 7 N m (32 5 lb ft)
Torque the mounting bolts for the fuel pump or the timing cover to the standard torque.
(28) Tighten the exhaust manifold studs that are in each cylinder head to the following torque. ... 35 5 N m (26 4 lb ft)
Illustration 6 g01017447
(A) Height of new cylinder head ... 112.78 0.25 mm (4.440 0.010 inch)
Illustration 7 g01017453
Note: Use 6V-6640 RTV Silicone Sealant on the plugs. (B) The plugs are installed into the cylinder head at the following depth. ... 4.5 0.5 mm (0.18 0.02 inch) (C) The plugs are installed into the cylinder head at the following depth. ... 2.0 0.5 mm (0.08 0.02 inch)