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Mazda CX-9 Grand Touring. Manual - part 156

Fig. 44: Crimping Locknut
Courtesy of MAZDA MOTORS CORP.

ADJUSTING SHIM ASSEMBLY NOTE

1. Assemble the differential carrier to the SSTs.

2. Assemble the spacer to the differential carrier.

3. Stack the side bearing outer race and gear case component on the surface plate as indicated in the figure,

and measure the height using a caliper and a ruler. This is value A.

Fig. 45: Measuring Height Using Caliper & Ruler
Courtesy of MAZDA MOTORS CORP.

4. Measure the width of the installed differential in the differential carrier with the spacer installed.

This is value B.

5. The combined thickness of the left and right adjusting shims is obtained by the following formula.

= B - A + 0.15 mm {0.006 in}

= B - A + 0.44 mm {0.017 in}

6. If the combined thickness of the previously installed adjusting shims is between C1 and C2, use the shims

as they are.

2008 Mazda CX-9 Grand Touring

2008 DRIVELINE/AXLES Differential - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:52:16 AM

Page 28

7. If the combined thickness of the previously installed adjusting shims is not between C1 and C2, or if the

adjusting shims have to be replaced, select two appropriate adjusting shims from the table below.

Fig. 46: Measuring Width Of Installed Differential
Courtesy of MAZDA MOTORS CORP.

Adjusting shim thickness

ADJUSTING SHIM THICKNESS SPECIFICATION

8. Assemble the selected adjusting shims to the differential carrier ring gear side, and the spacer to the

opposite side.

9. Assemble the differential and bearing outer race to the differential carrier.

10. Tap the selected adjusting shim between the spacer and the bearing race with a plastic hammer as shown

in the figure.

11. Align the bearing cap alignment marks to assemble the bearing cap, and temporarily tighten the bolts.

Identification mark Thickness (mm {in}) Identification mark Thickness (mm {in})

350

3.50 {0.137}

410

4.10 {0.161}

355

3.55 {0.139}

415

4.15 {0.163}

360

3.60 {0.141}

420

4.20 {0.165}

365

3.65 {0.143}

425

4.25 {0.167}

370

3.70 {0.145}

430

4.30 {0.169}

375

3.75 {0.147}

435

4.35 {0.171}

380

3.80 {0.149}

440

4.40 {0.173}

385

3.85 {0.151}

445

4.45 {0.175}

390

3.90 {0.153}

450

4.50 {0.177}

395

3.95 {0.155}

455

4.55 {0.179}

400

4.00 {0.157}

460

4.60 {0.181}

405

4.05 {0.159}

CAUTION:



If adjusting shims are to be reused, do not mix up the left and
right shims.



Do not mix up the left and right side bearing outer races and
spacers.

2008 Mazda CX-9 Grand Touring

2008 DRIVELINE/AXLES Differential - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:52:16 AM

Page 29

12. Place the dial indicator so that the measuring probe contacts the top surface of one of the ring gear teeth

perpendicularly.

13. Secure the drive pinion and measure the backlash from when the ring gear moved.

Fig. 47: Tapping Adjusting Shim Between Spacer & Bearing Race
Courtesy of MAZDA MOTORS CORP.

Rear differential backlash of drive pinion and ring gear

Standard: 0.09-0.11 mm {0.003-0.004 in}

Minimum value: 0.05 mm {0.002 in}

14. If the backlash is not within the specification, adjust the gear case component by moving it in the axial

direction.

BEARING CAP ASSEMBLY NOTE

1. Align the bearing cap alignment marks to assemble the bearing cap.

Tightening torque 38-51 N.m {3.9-5.2 kgf.m, 28.1-37.0 ft.lbf}

2. Inspect the drive pinion and ring gear teeth contact points.

NOTE:



Measure the backlash at 4 locations around the ring gear. Make sure
one of the 4 locations is within specification, and the minimum value
for the 4 locations is 0.5 mm {0.002 in} or less.

NOTE:



When moving the gear case component in the axial direction, replace
the adjusting shims. If the adjusting shim on the right side is
replaced with one that is 0.05 mm {0.002 in} thicker, replace the one
on the left with one that is 0.05 mm {0.002 in} thinner.

2008 Mazda CX-9 Grand Touring

2008 DRIVELINE/AXLES Differential - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:52:16 AM

Page 30

Fig. 48: Aligning Bearing Cap Alignment Marks
Courtesy of MAZDA MOTORS CORP.

1. Coat both surfaces of the ring gear uniformly with a thin red lead coating.

2. While rotating the ring gear back and forth by hand, rotate the drive pinion several times and

inspect the tooth contact.

3. Inspect the tooth contacts in four locations around the ring gear, and check that the tooth contacts

showing the red lead coating are the same as the pattern indicated in the figure.



If the tooth contact is good, wipe off the red lead coating.



If it is not good, adjust the pinion height, then adjust the backlash.

Fig. 49: Inspecting Tooth Contacts
Courtesy of MAZDA MOTORS CORP.

4. If toe and flank contact appears as shown in the figure, replace the spacer with a thinner one, and

move the drive pinion outward.

2008 Mazda CX-9 Grand Touring

2008 DRIVELINE/AXLES Differential - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:52:16 AM

Page 31

Content .. 154 155 156 157 ..