Oil Pipe: Installation

Apply engine oil to the threaded portion for mounting the union bolt on the vacuum pump and cam carrier.
Use a new gasket to temporarily attach the oil pipe.
Tighten the union bolts and bolt in the numerical order as shown in the figure.
Tightening torque:

T1: 6.4N.m (0.7kgf-m, 4.7ft-lb)

T2: 20 N.m (2.0kgf-m, 14.8ft-lb)

Fig 1: Oil Pipe Bolts Tightening Sequence
Courtesy of SUBARU OF AMERICA, INC.
Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
Check the engine oil level and replenish the engine oil if necessary. Ref. to LUBRICATION (H4DO)>Engine Oil>INSPECTION .