Acura RL. Manual - part 409

Intake: 0.20-0.24 mm (0.008-0.009 in.)

Exhaust: 0.28-0.32 mm (0.011-0.013 in.)  

REAR  

Fig. 11: Identifying Valves (Rear Head) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

FRONT  

Fig. 12: Identifying Valves (Front Head) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

5. Insert the feeler gauge (A) between the adjusting screw and the end of the valve stem on No. 1 

cylinder and slide it back and forth; you should feel a slight amount of drag. 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

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Fig. 13: Checking Valve Clearance 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

6. If you feel too much or too little drag, loosen the locknut (A), and turn the adjusting screw (B) until 

the drag on the feeler gauge is correct. 

Fig. 14: Adjusting Valve Clearance 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

7. Tighten the locknut and recheck the clearance. Repeat the adjustment, if necessary.  

8. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 4 piston 

TDC mark (B) on the front camshaft pulley. 

Fig. 15: Aligning Front Upper Cover Pointer With Piston 4 TDC Mark On Front Camshaft 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

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Friday, June 05, 2009 3:18:36 PM

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© 2005 Mitchell Repair Information Company, LLC. 

Pulley 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

9. Check and, if necessary, adjust the valve clearance on No. 4 cylinder.  

10. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 2 piston 

TDC mark (B) on the front camshaft pulley. 

Fig. 16: Aligning Front Upper Cover Pointer With Piston 2 TDC Mark On Front Camshaft 
Pulley 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

11. Check and, if necessary, adjust the valve clearance on No. 2 cylinder.  

12. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 5 piston 

TDC mark (B) on the front camshaft pulley. 

Fig. 17: Aligning Front Upper Cover Pointer With Piston 5 TDC Mark On Front Camshaft 
Pulley 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

13. Check and, if necessary, adjust the valve clearance on No. 5 cylinder.  

14. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 3 piston 

TDC mark (B) on the front camshaft pulley. 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:36 PM

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 18: Aligning Front Upper Cover Pointer With Piston 3 TDC Mark On Front Camshaft 
Pulley 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

15. Check and, if necessary, adjust the valve clearance on No. 3 cylinder.  

16. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 6 piston 

TDC mark (B) on the front camshaft pulley. 

Fig. 19: Aligning Front Upper Cover Pointer With Piston 6 TDC Mark On Front Camshaft 
Pulley 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

17. Check and, if necessary, adjust the valve clearance on No. 6 cylinder.  

18. Install the cylinder head covers (see CYLINDER HEAD COVER INSTALLATION ).  

19. Install the right upper fender trim.  

CRANKSHAFT PULLEY REMOVAL AND INSTALLATION 

Special Tools Required  



Holder handle 07JAB-001020A  



Crankshaft pulley holder 07AAB-RJAA100  



Socket, 19 mm 07JAA-001020A, or a commercially available 19 mm socket  

REMOVAL 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:36 PM

Page 12 

© 2005 Mitchell Repair Information Company, LLC.