Acura (Honda) Workshop Service and Repair Manuals

Synchronizer Ring: Specifications

5th Synchro ring

Ring-to-gear clearance 

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.70 - 1.49 mm (0.028 - 0.059 inch) 
Limit .....................................................................................................................................................................................  0.4 mm (0.016 inch) 

6th Synchro Ring-to-gear clearance ring

Ring pushed against gear

Standard or New .................................................................................................................................................  0.73 - 1.44 mm (0.029 - 0.057 inch) 
Limit ...........................................................................................................................................................................................  0.4 mm (0.016 inch) 

Double cone synchro

Outer synchro ring-to-synchro cone clearance

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.70 - 1.19 mm (0.028 - 0.047 inch) 
Limit .....................................................................................................................................................................................  0.3 mm (0.012 inch) 

Synchro cone-to-gear clearance 

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.50 - 1.04 mm (0.020 - 0.041 inch) 
Limit ......................................................................................................................................................................................  0.3 mm (0.012 inch)

Outer synchro ring-to-gear cone clearance

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.95 - 1.68 mm (0.037 - 0.066 inch) 
Limit .....................................................................................................................................................................................  0.6 mm (0.024 inch) 

1st triple cone synchro

Outer synchro ring-to-synchro cone clearance

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.70 - 1.19 mm (0.028 - 0.047 inch) 
Limit .....................................................................................................................................................................................  0.3 mm (0.012 inch) 

Synchro cone-to-gear clearance 

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.45 - 1.14 mm (0.018 - 0.045 inch) 
Limit ......................................................................................................................................................................................  0.3 mm (0.012 inch)

Outer synchro ring-to-gear cone  clearance

Ring pushed against gear

Standard or New ...........................................................................................................................................  1.12 - 1.68 mm (0.044 - 0.066 inch) 
Limit .....................................................................................................................................................................................  0.6 mm (0.024 inch) 

2nd triple cone synchro

Outer synchro ring-to-synchro cone  clearance

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.70 - 1.19 mm (0.028 - 0.047 inch) 
Limit .....................................................................................................................................................................................  0.3 mm (0.012 inch) 

Synchro cone-to-gear clearance 

Ring pushed against gear

Standard or New ...........................................................................................................................................  0.60 - 1.88 mm (0.024 - 0.074 inch) 
Limit ......................................................................................................................................................................................  0.3 mm (0.012 inch)

Outer synchro ring-to-gear cone clearance

Ring pushed against gear 

Standard or New ...........................................................................................................................................  0.87 - 1.82 mm (0.034 - 0.072 inch) 
Limit .....................................................................................................................................................................................  0.6 mm (0.024 inch)