20739886 Volvo.Penta Flange screw

2. Remove the four bolts that hold the fan drive bracket (1) to the front of the engine.3. Install tool (A) as shown. Use tool (A) as a support for the fan and fan drive.
Make sure the fan does not cause damage to the radiator core when the fan drive is fastened to tool (A).
4. Remove two bolts (2). 5. Remove bolt and clip (4) that hold the water temperature sending unit line to the cylinder head.6. Remove water temperature sending unit line (3) from the cylinder head.7. Disconnect line (8) from the intake elbow.
TYPICAL EXAMPLE8. Remove the six bolts that hold the intake elbow in position. Remove intake elbow (5).9. Remove bolt (9) and bracket (7).10. Remove bolt and clip (10).11. Disconnect the wires from the glow plugs and remove harness (6).12. Install a 3/4"-10 NC forged eyebolt at the rear of the cylinder head as shown. 13. Fasten a hoist to the cylinder head. Remove the bolts that hold the cylinder in position. Remove cylinder head (11). Weight of the cylinder head is 230 lb. (104.3 kg).14. Remove the old cylinder head gasket.Install Cylinder Head
1. Clean the surfaces of the cylinder head and the cylinder block that make contact with each other. Install a new gasket on the cylinder block. 2. Fasten a hoist to cylinder head (1). Put the head in position on the block. Install the push rods. Put the rocker shaft in position on the cylinder head. Put 9M3710 Anti-Seize Compound on the threads of the cylinder head and rocker shaft bolts. Install the bolts and washers and tighten the bolts as follows: a) Tighten all bolts in number sequence to a torque of 115 lb.ft. (155.9 N m).b) Tighten all bolts in number sequence to a torque of 175 5 lb.ft. (237.3 6.8 N m).c) Tighten all bolts in number sequence (hand turn only) to a torque of 175 5 lb.ft. (237.3 6.8 N m).d) Tighten all bolts in letter sequence to a torque of 22 lb.ft. (29.8 N m).e) Tighten all bolts in letter sequence to a torque of 32 5 lb.ft. (43.4 6.8 N m).f) Tighten all bolts in letter sequence to a torque of 32 5 lb.ft. (43.4 6.8 N m).3. 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.4. Install the wire harness for the glow plugs.5. Install the bracket for the dash.6. Install the intake elbow.7. Connect the air fuel ratio line to the intake elbow. Install the clip that holds the air fuel ratio line.8. Connect the water temperature sending unit line to the cylinder head.9. Put the fan and fan drive in position against the front of the engine. Remove tool (A) and install the four bolts that hold the fan drive in position.10. Install the valve cover. See INSTALL VALVE COVER.end by: a) install exhaust manifoldb) install water temperature regulator