Nissan Altima 2007-2012 Service Manual: Reverse idler shaft and gear

Exploded View

Refer to TM-28, "Exploded View".

Disassembly

1. Remove reverse idler gear (Rear), reverse coupling sleeve, and reverse insert spring simultaneously.

2. Remove reverse idler gear needle bearing.

3. Remove thrust needle bearing.

4. Remove reverse baulk ring.

5. Remove reverse idler gear (Front).

6. Remove reverse idler gear needle bearing.

7. Remove thrust needle bearing.

8. Remove retaining pin from reverse idler shaft.

Assembly

Assembly is in the reverse order of disassembly.

CAUTION: • Be careful with orientation of reverse insert spring.

• Do not reuse retaining pin.

Inspection

REVERSE IDLER SHAFT AND GEAR

Check items below. If necessary, replace them with new ones.

• Damage, peeling, dent, uneven wear, bending, and other nonstandard conditions of the shaft.

• Excessive wear, damage, peeling, and other non-standard conditions of the gears.

SYNCHRONIZER

Synchronizer Hub and Coupling Sleeve

Check items below. If necessary, replace them with new ones.

• Damage and unusual wear on contact surfaces of coupling sleeve, synchronizer hub of reverse idler gear (Rear), and insert spring.

• Coupling sleeve and synchronizer hub of reverse idler gear (Rear) must move smoothly.

Baulk Ring

Check items below. If necessary, replace them with new ones.

• If any crack, damage, or excessive wear is found on cam face of baulk ring or working face of insert, replace it.

Baulk Ring Clearance for Single Cone Synchronizer (Reverse)

• Push baulk ring on the cone and measure the clearance between baulk ring and cone. If the measurement is below limit, replace it with a new one.

BEARING

Check bearing for damage and rough rotation. If necessary, replace with new one.

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