Engine Mount Installation Note

CAUTION:

Slots have been adopted for the No. 3 engine mount and No. 4 engine mount bracket installation holes. Tighten the installation bolts and nuts so that they are centered on the slots. Otherwise, engine noise or vibration could increase.

NOTE:

When loosening the nuts of the No. 3 engine mount and the No. 4 engine mount bracket, the engine front cover and the transaxle stud bolt may loosen.

Tighten the engine front cover stud bolts.

Fig 1: Identifying Engine Front Cover Stud Bolts
Courtesy of MAZDA MOTORS CORP.

Tightening torque
- 7-13 N.m {72-132 kgf.cm, 62-115 in.lbf}
Tighten the transaxle stud bolts.

Fig 2: Identifying Transaxle Stud Bolts
Courtesy of MAZDA MOTORS CORP.

Tightening torque
- 15-25 N.m {1.6-2.5 kgf.m, 12-18 ft.lbf}
CAUTION:
- When supporting the engine and transaxle, insert rubber of appropriate size (approx. 20 mm {0.79 in} thickness) between the engine lifter and the oil pan, transaxle to prevent the deformation of the oil pan and damage of the transaxle.
Secure the engine and transaxle using a commercially available engine lifter.

Fig 3: Securing Engine And Transaxle Using Commercially Available Engine Lifter
Courtesy of MAZDA MOTORS CORP.
Temporarily tighten the No. 3 engine mount installation bolts and nuts using the following procedure:
1. Temporarily tighten the bolts shown in the figure so that they are centered on the No. 3 engine mount slots.
  
  Fig 4: Identifying Good And Bad Centered Bolt Holes
  Courtesy of MAZDA MOTORS CORP.
2. Temporarily tighten the nuts shown in the figure so that the stud bolts of the engine front cover are centered on the No. 3 engine mount slots.
  
  Fig 5: Identifying Good And Bad Centered Bolt Holes
  Courtesy of MAZDA MOTORS CORP.
  NOTE:
  - If the stud bolts are deviated from the center of the slots, align the stud bolts with the center of the slots while slightly moving the engine, and temporarily tighten the installation nuts.
Temporarily tighten the No. 4 engine mount bracket installation bolt and nuts using the following procedure:
1. Temporarily tighten the bolt shown in the figure.
  
  Fig 6: Identifying Engine Mount Bracket Bolt
  Courtesy of MAZDA MOTORS CORP.
2. Temporarily tighten the nuts shown in the figure so that they are centered on the No. 4 engine mount bracket slots.
  
  Fig 7: Identifying Good And Bad Centered Stud Bolts
  Courtesy of MAZDA MOTORS CORP.
  NOTE:
  - If the stud bolts are deviated from the center of the slots, align the stud bolts with the center of the slots while slightly moving the transaxle, and temporarily tighten the installation nuts.
Install the No. 1 engine mount rubber and the front crossmember component as a single unit. (Refer to FRONT CROSSMEMBER REMOVAL/INSTALLATION .)
Temporarily tighten the following parts:
2WD
- No. 1 engine mount bracket, No. 1 engine mount rubber and bracket plate
  
  Fig 8: Identifying Engine Mount Bracket (2WD)
  Courtesy of MAZDA MOTORS CORP.
AWD
- No. 1 engine mount rubber, bracket plate and deadweight
  
  Fig 9: Identifying Engine Mount Bracket (AWD)
  Courtesy of MAZDA MOTORS CORP.
Tighten the No. 1 engine mount bracket and bracket plate installation bolts in the order shown in the figure. (2WD)

Fig 10: Bracket Plate Installation Bolts Tightening Sequence
Courtesy of MAZDA MOTORS CORP.

Tightening torque
- 131-153 N.m {14-15 kgf.m, 97-112 ft.lbf}

Tighten the No. 3 engine mount installation bolts and nuts in the order shown in the figure.

Fig 11: Engine Mount Installation Bolts Tightening Sequence

Courtesy of MAZDA MOTORS CORP.

TORQUE SPECIFICATIONS

No.	Tightening torque
1	76-95 N.m {7.8-9.6 kgf.m, 57-70 ft.lbf}
2	82-95 N.m {8.4-9.6 kgf.m, 61-70 ft.lbf}
3	49-65 N.m {5.0-6.6 kgf.m, 37-47 ft.lbf}

Tighten the No. 4 engine mount bracket installation bolt and nuts in the order shown in the figure.

Fig 12: Engine Mount Bracket Installation Bolts Tightening Sequence

Courtesy of MAZDA MOTORS CORP.

TORQUE SPECIFICATIONS

No.	Tightening torque
1, 2,	392-116 N.m {9.4-11 kgf.m, 68-85 ft.lbf}
4	81-99 N.m {8.3-10 kgf.m, 60-73 ft.lbf}

Tighten the No. 1 engine mount rubber installation bolts.

Fig 13: Identifying Engine Mount Rubber Installation Bolts With Torque Specifications (1 Of 2)
Courtesy of MAZDA MOTORS CORP.

Fig 14: Identifying Engine Mount Rubber Installation Bolts With Torque Specifications (2 Of 2)
Courtesy of MAZDA MOTORS CORP.
Connect the clip shown in the figure.

Fig 15: Identifying Wiring Harness Bracket Clip
Courtesy of MAZDA MOTORS CORP.
Install the ground cable shown in the figure.

Fig 16: Identifying Ground Cable Bolt With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Return the cooler hose that was set aside to its original position and tighten the nut.

Fig 17: Identifying Cooler Hose Nut With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Install the PCM component using the following procedure:
1. Return the PCM component that was set aside to its original position.
2. Temporarily tighten the bolt shown in the figure.
  
  Fig 18: Identifying PCM Component Bolt
  Courtesy of MAZDA MOTORS CORP.
3. Tighten the PCM component installation bolts in the order shown in the figure.
  
  Fig 19: PCM Component Installation Bolts Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.
  
  Tightening torque
  - 9-10 N.m {92-101 kgf.cm, 80-88 in.lbf}
4. Install the wiring harness protector and connector.
  
  Fig 20: Identifying Wiring Harness Protector Bolt With Torque Specifications
  Courtesy of MAZDA MOTORS CORP.
5. Connect the PCM connector (140-pin side) to the PCM. (Refer to PCM REMOVAL/INSTALLATION .)
Install the ground cable shown in the figure.

Fig 21: Identifying Ground Cable Bolt With Torque Specifications
Courtesy of MAZDA MOTORS CORP.