High Pressure Line Pipe Installation Note

Temporarily tighten the bolts in the order shown in the figure.

Fig 1: Identifying High Pressure Line Pipe Bolts Tightening Sequence
Courtesy of MAZDA MOTORS CORP.
Tighten NO. 1 bolts shown in the figure.
Tightening torque

17-23 N.m {1.8-2.3 kgf.m, 13-16 ft.lbf}
Tighten NO. 2 bolts shown in the figure.

Fig 2: Installing High Pressure Line Pipe
Courtesy of MAZDA MOTORS CORP.
1. Fix the joint nut with a wrench on the high pressure fuel pump side as shown in the figure.
2. Tighten the high pressure line pipe installation nut.
  Tightening torque
  
  23.5-35.5 N.m {2.40-3.61 kgf.m, 17.4-26.1 ft.lbf}
Tighten NO. 3, NO. 4 bolts shown in the figure.
Tightening torque

17-23 N.m {1.8-2.3 kgf.m, 13-16 ft.lbf}