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 Stud Bolt

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Install the washers.

Fig 2: Installing Washers
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Install the bolt.
Tightening torque
- 5.0-9.0 N.m {51-91 kgf.cm, 45-79 in.lbf}
Fig 3: Installing Bolt
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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: Identifying Projection Amount Of Stud Bolt
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Assemble the power plant frame from the rear differential side and temporarily tighten all the nuts.

Fig 5: Identifying Power Plant Frame And Nuts
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Tighten the nut shown in the figure to the specified torque.

Fig 6: Identifying Nut
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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 Nut
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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 Nut
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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 Nuts
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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: Installing Tunnel Member
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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: Adjusting Height Of Transmission Using Transmission Jack
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Tighten the nuts (4 locations) on the transmission side.

Fig 12: Identifying Nuts On Transmission Side
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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: Installing Member Bracket

Courtesy of MAZDA MOTORS CORP.