Synchronizer Nissan Altima L31 facelift

Synchronizer

Check the items listed. If necessary, replace them with new ones.

Scheme 289

Scheme 290

1. Damage and excessive wear of the contact surfaces of coupling sleeve, synchronizer hub, and shifting insert.
2. Coupling sleeve and synchronizer hub must move smoothly as shown.
3. If any cracks, damage, or excessive wear is found on the cam face of baulk ring or working face of the insert as shown, replace it.

Scheme 291

1. Press the baulk ring against cone, and measure clearance between baulk ring and cone. If measurement is below limit, replace it with a new one. Clearance - standard 4th: 0.9 - 1.45 mm (0.035 - 0.0571 in) 5th and 6th: 0.95 - 1.4 mm (0.0374 - 0.055 in) Limit: 0.7 mm (0.028 in)

Scheme 292

1. Follow the instructions below and inspect the clearance of the outer baulk ring, synchronizer cone, and inner baulk ring. CAUTION: Outer baulk ring, synchronizer cone, and inner baulk ring act as a set to control the clearances "A" and "B". If the measurement exceeds the service limit value, replace all of them as a set.

Scheme 293

Scheme 294

1. Using a dial gauge and Tool, measure clearance "A" at two or more points diagonally opposite, and calculate mean value. Tool number: ST30031000 (J-22912-01) Clearance "A" Standard: 0.6 - 0.8 mm (0.024 - 0.031 in) Limit value: 0.2 mm (0.008 in)
2. Using a feeler gauge, measure clearance "B" at two or more points diagonally opposite, and calculate mean value as shown. Clearance "B" Standard: 0.6 - 1.1 mm (0.024 - 0.043 in) Limit value: 0.2 mm (0.008 in)