Acura TSX / Honda Accord CL. Manual - part 879

Fig. 80: Pressing The Countershaft Out Of The 3rd Gear 

COUNTERSHAFT INSPECTION 

1. Inspect the gear and bearing surfaces for wear and damage, then measure the countershaft at points A, B, 

and C. If any part of the countershaft is less than the service limit, replace it. 

Standard: 

 

2004 Acura TSX 

2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed

  

 

A Ball Bearing Surface (Transmission Housing Side): 30.020-30.033 mm (1.1819-1.1824 
in.)  

B Distance Collar Surface: 39.937-39.950 mm (1.5723-1.5728 in.)  

C Needle Bearing Surface (Clutch Housing Side): 35.000-35.015 mm (1.3779-1.3785 in.)  

Service Limit: 

A: 29.97 mm (1.180 in.)  

B: 39.883 mm (1.5702 in.)  

C: 34.95 mm (1.376 in.)  

Fig. 81: Inspecting Countershaft Surfaces 

2. Inspect the runout by supporting both ends of the countershaft. Then rotate the countershaft two complete 

turns while measuring with a dial gauge. If the runout exceeds the service limit, replace the countershaft. 

Standard: 0.02 mm (0.001 in.) Max.  

Service Limit: 0.05 mm (0.002 in.) 

 

2004 Acura TSX 

2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed

  

 

Fig. 82: Inspecting Countershaft Runout 

COUNTERSHAFT REASSEMBLY 

Exploded View 

 

2004 Acura TSX 

2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed

  

 

Fig. 83: Exploded View Of Countershaft Components 

Special Tools Required:  

z

Driver, 40 mm I.D 07746-0030100  

z

Attachment, 30 mm 07746-0030300  

1. Clean all parts in solvent, dry them, and apply lubricant to all contact surfaces.  

2. Install the distance collar and needle bearing onto the countershaft.  

3. Install the triple cone synchro assembly (A) by aligning the synchro cone fingers (B) with 1st gear 

grooves (C), then install the synchro spring (D). 

NOTE:

Refer to the Exploded View as needed during this procedure.

 

2004 Acura TSX 

2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed