Differential: 3B-15
• Remove the oil filler cap and measure the backlash of
the differential ring gear using the horizontal type dial
gauge and drive shaft (3) as shown in the figure.
• Take backlash readings at three places while turning
the front drive (differential) gear slightly in each
direction and securely holding the pinion gear. Rear
the total backlash on the dial gauge.
Special tool
(A): 09900–20607 (Dial gauge (1/100 mm, 10
mm))
(B): 09900–20701 (Magnetic stand)
Front drive (differential) gear backlash
Standard: 0.05 – 0.10 mm (0.0020 – 0.0040 in)
• Remove the dial gauge and turn the front drive
(differential) gear 120°, then measure the backlash.
Repeat this procedure once more and compare the
difference of the three measurements. If the backlash
should be re-checked until the backlash is within
specification. Check the table at the appropriate shim
thickness.
NOTE
Adjust the backlash by referring to the table
at using the thickness of the removed shims
a guide.
List of shims (for right side)
• If the backlash is too small, replace the right side
shim(s) with a thicker one. If the backlash is too large,
replace the right side shim(s) with a thinner one. If the
right side shim was changed with a 0.10 mm thicker
shim, replace the left side shim with one that is 0.10
mm thinner.
Left Side Shim Selection
• Install the right side shim(s) (1) and front drive
(differential) gear assembly.
NOTE
Do not install the left side shim(s) at this time.
• Put a few pieces of solder (O.D.: 1.2 – 1.5 mm x L: 6
mm) on the bearing outer race, as shown in the figure.
Backlash Shim adjustment
Under 0.05 mm
(0.0020 in)
Increase shim thickness
0.05 – 0.10 mm
(0.0020 – 0.0040 in)
Correct
Over 0.10 mm
(0.0040 in)
Decrease shim thickness
3
(A)
(B)
I831G1320061-01
I831G1320062-01
Part No. Shim thickness
27445-38FA0
(Shim set: 15 pcs.)
0.75 mm (0.0295 in)
0.80 mm (0.0315 in)
0.85 mm (0.0335 in)
0.90 mm (0.0354 in)
0.95 mm (0.0374 in)
1.00 mm (0.0394 in)
1.05 mm (0.0413 in)
1.10 mm (0.0433 in)
1.15 mm (0.0453 in)
1.20 mm (0.0472 in)
1.25 mm (0.0492 in)
1.30 mm (0.0512 in)
1.35 mm (0.0531 in)
1.40 mm (0.0551 in)
1.45 mm (0.0571 in)
1
I831G1320064-01
I831G1320065-01
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