Checking the synchronizer ring and gear (Honda CR-V 2)

1. Check the synchronizer rings (A) from the inside for wear. Check for wear (not rounded) whether the teeth (B) on the synchronizer rings.

An example of the condition of the teeth on the synchronizer rings.

An example of the condition of the teeth on the…

2. Check if they are worn out (not rounded) whether the teeth (C) on the synchronizer cages and the corresponding teeth on the gears.

An example of the condition of the teeth on the synchronizer cages and on the gears.

3. Check that the thrust surface (D) on the gear hubs is not worn.

4. Check the cone surface (E) on the gear hubs for wear and roughness.

5. Check for uneven wear, scratches, burrs and cracks on the teeth of all gears.

6. Apply oil to the cone surface of gear (E) and insert the synchronizer ring into the corresponding gear. Turn the synchronizer ring and make sure it does not slip.

7. Measure the clearance between the gear (A) and the corresponding synchronizer ring (B) over the entire circumference. When measuring the gap, press the synchronizer ring evenly against the gear. If the clearance is less than the specified limit, replace the synchronizer ring and gear.

Gap between synchronizer ring and gear

Standard	0.70-1.49 mm
Limit	0.4 mm

The gap between the two- and three-cone synchronizer and the gear

		Standard	Limit
[A]	between the outer synchronizer ring (B) and the synchronizer cone (C)	0.70-1.19 mm	0.3 mm
[B]	between the synchronizer cone (C) and the gear (A)	0.50-1.04 mm	0.3 mm
[With]	between the outer synchronizer ring (B) and the gear (A)	0.95-1.68 mm	0.6 mm