Honda HR-V: Synchro Ring and Gear Inspection (M/T)

Inspection

1. Synchro Ring and Gear - Inspect

1. Inspect the synchro rings for scoring, cracks, and damage (A)
2. Inspect the inside of each synchro ring (B) for wear. Inspect the teeth (C) on each synchro ring for wear (rounded off).

3. Inspect the teeth (A) on each synchro sleeve and matching teeth on each gear for wear (rounded off).

4. Inspect the synchro teeth on gear for scoring, cracks, and damage (A)
5. Inspect the thrust surface (B) on each gear hub for wear
6. Inspect the cone surface (C) on each gear hub for wear and roughness
7. Inspect the teeth on all gears (D) for uneven wear, scoring, and cracks
8. Coat the cone surface of each gear with MTF, and place its synchro ring on it.

   Rotate the synchro ring, making sure that it does not slip.

9. Measure the clearance between each gear (A) and its synchro ring (B) all around the gear. Hold the synchro ring against the gear evenly while measuring the clearance.

   If the clearance is less than the service limit, replace the synchro ring and gear.

Synchro ring-to-gear clearance

Triple cone synchro-to-gear clearance

Synchro Ring-to-Gear Clearance

Standard: 0.70-1.49 mm (0.0276-0.0587 in)

Service Limit: 0.70 mm (0.0276 in)

Triple Cone Synchro-to-Gear Clearance Standard:

1. Outer Synchro Ring (B) to Synchro Cone (C) 0.70-1.19 mm (0.0276-0.0469 in)
2. Synchro Cone (C) to Gear (A) 0.50-1.04 mm (0.0197-0.0409 in)
3. Outer Synchro Ring (B) to Gear (A) 0.95-1.68 mm (0.0374-0.0661 in)

Service Limit:

1. 0.70 mm (0.0276 in)
2. 0.50 mm (0.0197 in)
3. 0.95 mm (0.0374 in)

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