Install the lower cylinder head half: Notes

Fig 1: Identifying Cylinder Head Bolt Tightening Sequence

Courtesy of VOLVO CARS OF NORTH AMERICA.

Install new cylinder head gasket

Lubricate the screws.

Tighten the screws in three stages from the middle and working out according to:

1. 20 Nm 
2. 60 Nm 
3. 130°  , use angle gauge 9512050

Install the coolant pipe with a new  gasket.

Install new  O-rings around the spark plug sockets.

Remove spark plugs 1 and 5.