Power Plant Frame Installation

CAUTION:

The stud bolt shown in the figure is pressed into the power plant frame. Read the cautions carefully so as not to damage the parts while servicing.

Fig 1: Identifying Power Plant Frame And Stud Bolt

Courtesy of MAZDA MOTORS CORP.

Install the washers.

Fig 2: Identifying Power Plant Frame Washers
Courtesy of MAZDA MOTORS CORP.
Install the bolt.
Tightening torque

5.0-9.0 N.m {51-91 kgf.cm, 45-79 in.lbf}

Fig 3: Identifying Power Plant Frame Bolt
Courtesy of MAZDA MOTORS CORP.
Install the stud bolt to the differential.
Tightening torque

25-35 N.m {2.6-3.5 kgf.m, 19-25 ft.lbf}

Verify that the projection amount of the stud bolt is within the specification.

Specification

36.5-38.5 mm {1.44-1.51 in}

Fig 4: Checking Projection Amount Of Stud Bolt
Courtesy of MAZDA MOTORS CORP.
Assemble the power plant frame from the rear differential side and temporarily tighten all the nuts.

Fig 5: Identifying Power Plant Frame Nuts
Courtesy of MAZDA MOTORS CORP.
Tighten the nut shown in the figure to the specified torque.

Fig 6: Identifying Power Plant Frame Nut
Courtesy of MAZDA MOTORS CORP.

Tightening torque

164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}
Tighten the nut shown in the figure to the specified torque.

Fig 7: Identifying Power Plant Frame Nut
Courtesy of MAZDA MOTORS CORP.

Tightening torque

164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}
Retighten the nut shown in the figure to the specified torque.

Fig 8: Identifying Power Plant Frame Nut
Courtesy of MAZDA MOTORS CORP.

Tightening torque

164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}
Install the nuts shown in the figure in the following order.

Fig 9: Identifying Power Plant Frame Nut
Courtesy of MAZDA MOTORS CORP.

Tightening torque

164-200 N.m {17-20 kgf.m, 121-147 ft.lbf}
1. Tighten the nut (front side) to the specified torque.
2. Tighten the nut (rear side) to the specified torque.
3. Retighten the nut (front side) to the specified torque.
Install the tunnel member.

Fig 10: Identifying Tunnel Member Bolts With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Adjust the height of the transmission using a transmission jack, and verify that the power plant frame installation position is within the specification.
Specification
- Between bottom surface of power plant frame and top surface of tunnel member: 22.4-28.4 mm {0.89-1.11 in}
Fig 11: Checking Height Between Bottom Surface Of Power Plant Frame And Top Surface Of Tunnel Member
Courtesy of MAZDA MOTORS CORP.
Tighten the nuts (4 locations) on the transmission side.

Fig 12: Identifying Power Plant Frame Nuts
Courtesy of MAZDA MOTORS CORP.

Tightening torque

135-164 N.m {14-16 kgf.m, 100-120 ft.lbf}
Remove the rubber or rag from the transmission jack and between the rear differential and rear crossmember.
Verify that the power plant frame installation position is within the specification indicated in Step 10.
- If not within the specification, repeat from Step 10.
Install the member bracket. (With member bracket)

Fig 13: Identifying Member Bracket And Bolts With Torque Specification

Courtesy of MAZDA MOTORS CORP.