Acura RL. Manual - part 218



The secondary shaft 1st gear drives the countershaft 1st gear and the countershaft.  



Power is transmitted to the final drive gear, which in turn drives the final driven gear and the transfer 
drive gear.  



The transfer output shaft drives the transfer hypoid drive gear/shaft and the transfer output shaft (hypoid 
gear). 

Fig. 16: Power Flow Diagram - D And D3 Positions (In 1st Gear) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

In 2nd gear 



Hydraulic pressure is applied to the 2nd clutch, then the 2nd clutch engages the secondary shaft 2nd gear 
with the secondary shaft.  

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:11 PM

Page 43 

© 2005 Mitchell Repair Information Company, LLC. 



The mainshaft 3rd gear drives the secondary shaft via the countershaft idler gear and secondary shaft idler 
gear.  



The secondary shaft 2nd gear drives the countershaft 2nd gear and the countershaft.  



Power is transmitted to the final drive gear, which in turn drives the final driven gear and the transfer 
drive gear.  



The transfer output shaft drives the transfer hypoid drive gear/shaft and the transfer output shaft (hypoid 
gear).  



Hydraulic pressure is also applied to the 1st clutch, but since the rotation speed of 2nd gear exceeds that 
of 1st gear, power from 1st gear is cut off at the one-way clutch. 

Fig. 17: Power Flow Diagram - D And D3 Positions (In 2nd Gear) 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:11 PM

Page 44 

© 2005 Mitchell Repair Information Company, LLC. 

In 3rd gear 



Hydraulic pressure is applied to the 3rd clutch, then 3rd clutch engages the intermediary shaft 3rd gear 
with the intermediary shaft.  



The mainshaft 3rd gear drives the intermediary shaft 4th gear via the intermediary shaft 3rd gear and the 
3rd clutch.  



The intermediary shaft 4th gear drives the countershaft 4th gear and the countershaft via the mainshaft 4th 
gear.  



Power is transmitted to the final drive gear, which in turn drives the final driven gear and the transfer 
drive gear.  



The transfer output shaft drives the transfer hypoid drive gear/shaft and the transfer output shaft (hypoid 
gear).  



Hydraulic pressure is also applied to the 1st clutch, but since the rotation speed of 3rd gear exceeds that of 
1st gear, power from 1st gear is cut off at the one-way clutch. 

Fig. 18: Power Flow Diagram - D And D3 Positions (In 3rd Gear)

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:11 PM

Page 45 

© 2005 Mitchell Repair Information Company, LLC. 

Courtesy of AMERICAN HONDA MOTOR CO., INC.

In 4th gear 



Hydraulic pressure is applied to the 4th clutch, then the 4th clutch engages the mainshaft 4th gear with the 
mainshaft.  



The mainshaft 4th gear drives the countershaft 4th gear and the countershaft.  



Power is transmitted to the final drive gear, which in turn drives the final driven gear and the transfer 
drive gear.  



The transfer output shaft drives the transfer hypoid drive gear/shaft and the transfer output shaft (hypoid 
gear).  



Hydraulic pressure is also applied to the 1st clutch, but since the rotation speed of 4th gear exceeds that of 
1st gear, power from 1st gear is cut off at the one-way clutch. 

 

2007 Acura RL 

2005-08 TRANSMISSION Automatic Transmission - RL

  

me 

 

Friday, June 05, 2009 1:18:11 PM

Page 46 

© 2005 Mitchell Repair Information Company, LLC.