Acura (Honda) Workshop Service and Repair Manuals

Mainshaft: Specifications

Mainshaft 

End play 

Standard or New .................................................................................................................................................  0.14 - 0.21 mm (0.006 - 0.008 inch) 
Limit .................................................................................................................................................................................................................  Adjust 

Diameter of pilot bearing surface 

Standard or New .....................................................................................................................................  19.967 - 19.980 mm (0.7861 - 0.7866 inch) 
Limit .......................................................................................................................................................................................  19.91 mm (0.784 inch) 

Diameter of 4th and 5th gears distance collar

Standard or New ...............................................................................................................................................  35.987 - 36.000 mm (1.4168 - 1.4173 inch) 

Limit .............................................................................................................................................................................................  35.93 mm (1.415 inch) 
Diameter of ball bearing contact area (clutch housing side)

Standard or New .....................................................................................................................................  28.002 - 28.015 mm (1.1024 - 1.1030 inch) 
Limit ........................................................................................................................................................................................  27.95 mm (1.100 inch)

Diameter of needle bearing contact area

Standard or New .....................................................................................................................................  41.984 - 42.000 mm (1.6529 - 1.6535 inch) 
Limit ......................................................................................................................................................................................  41.93 mm (1.651 inch)  

Diameter of 6th gear distance collar 

Standard or New .....................................................................................................................................  32.987 - 33.000 mm (1.2987 - 1.2992 inch) 
Limit .......................................................................................................................................................................................  32.93 mm (1.296 inch) 

Diameter of ball bearing contact area (transmission housing side)

Standard or New .....................................................................................................................................  30.987 - 31.000 mm (1.2200 - 1.2205 inch) 
Limit ........................................................................................................................................................................................  30.93 mm (1.218 inch)

Runout 

Standard or New ......................................................................................................................................................  0.02 mm (0.001 inch) maximum 
Limit .........................................................................................................................................................................................  0.05 mm (0.002 inch) 

Mainshaft 3rd gear

I.D. 

Standard or New ......................................................................................................................................  47.009 - 47.025 mm (1.8507 - 1.8514 inch)
Limit .......................................................................................................................................................................................  47.08 mm (1.854 inch) 

End play 

Standard or New .................................................................................................................................................  0.06 - 0.19 mm (0.002 - 0.007 inch) 
Limit .............................................................................................................................................................................................  0.3 mm (0.01 inch) 

Thickness 

Standard or New .............................................................................................................................................  23.89 - 23.97 mm (0.941 - 0.944 inch) 
Limit ...........................................................................................................................................................................................  23.8 mm (0.94 inch) 

Mainshaft 4th and 5th gears

I.D. 

Standard or New .....................................................................................................................................  47.009 - 47.025 mm (1.8507 - 1.8514 inch) 
Limit .......................................................................................................................................................................................  47.08 mm (1.854 inch) 

End play 

Standard or New .................................................................................................................................................  0.06 - 0.19 mm (0.002 - 0.007 inch) 
Limit ..............................................................................................................................................................................................  0.3 mm (0.01 inch)

Thickness 

Standard or New .............................................................................................................................................  22.39 - 22.47 mm (0.881 - 0.885 inch) 
Limit ...........................................................................................................................................................................................  22.3 mm (0.88 inch) 

Mainshaft 6th gear

I.D. 

Standard or New .....................................................................................................................................  44.009 - 44.025 mm (1.7326 - 1.7333 inch) 
Limit ......................................................................................................................................................................................  44.08 mm (1.735 inch)  

End play 

Standard or New .................................................................................................................................................  0.06 - 0.19 mm (0.002 - 0.007 inch) 
Limit ..............................................................................................................................................................................................  0.3 mm (0.01 inch)

Thickness 

Standard or New .............................................................................................................................................  21.89 - 21.97 mm (0.862 - 0.865 inch) 
Limit ...........................................................................................................................................................................................  21.8 mm (0.86 inch) 

Mainshaft 4th and 5th gears distance collar

I.D. 

Standard or New .....................................................................................................................................  36.002 - 36.012 mm (1.4174 - 1.4178 inch) 
Limit ......................................................................................................................................................................................  36.06 mm (1.420 inch)  

O.D. 

Standard or New .....................................................................................................................................  41.989 - 42.000 mm (1.6531 - 1.6535 inch) 
Limit ......................................................................................................................................................................................  41.94 mm (1.651 inch)  

Length 

A ......................................................................................................................................................................  49.95 - 50.05 mm (1.967 - 1.970 inch)