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: 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: 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: No 3 Engine Mount Installation Bolts And Nuts
  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: Centering Stud Bolts Of Engine Front Cover To No. 3 Engine Mount Slots
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: Bolt And No 4 Engine Mount Bracket
  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: Stud Bolts Centering Of Slots
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. (See 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: Engine Mount Bracket, Engine Mount Rubber And Bracket Plate (2WD)
Courtesy of MAZDA MOTORS CORP.

AWD
- No. 1 engine mount rubber, bracket plate and deadweight
Fig 9: Engine Mount Bracket, Engine Mount Rubber And Deadweight (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: Engine Mount Bracket And Bracket Plate (2WD) 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 And Nuts Tightening Sequence

Courtesy of MAZDA MOTORS CORP.

Tightening torque

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: No 4 Engine Mount Bracket Installation Bolt And Nuts Tightening Sequence

Courtesy of MAZDA MOTORS CORP.

Tightening torque

No.	Tightening torque
1, 2, 3	92-116 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.
2WD

Fig 13: No 1 Engine Mount Rubber Installation Bolts (2WD)
Courtesy of MAZDA MOTORS CORP.

AWD

Fig 14: No 1 Engine Mount Rubber Installation Bolts (AWD)
Courtesy of MAZDA MOTORS CORP.
Connect the clip shown in the figure.

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

Fig 16: Engine Mount, Ground Cable And Bolt
Courtesy of MAZDA MOTORS CORP.
Return the cooler hose that was set aside to its original position and tighten the nut.

Fig 17: Cooler Hose And Nut
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: PCM Component And 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: Wiring Harness Protector, Connector, PCM Component And Bolt
  Courtesy of MAZDA MOTORS CORP.
5. Connect the PCM connector (140-pin side) to the PCM. (See PCM REMOVAL/INSTALLATION .)
Install the ground cable shown in the figure.

Fig 21: PCM Component, Bolt, Clip And Ground Cable

Courtesy of MAZDA MOTORS CORP.