Acura TSX / Honda Accord CL. Manual - part 415

Fig. 53: The Mid Rocker Arm, Primary Rocker Arm & Secondary Rocker Arm Should Move 
Together 

13. Remove the special tools.  

14. Tighten the camshaft holder mounting bolts to 22 N.m (2.2 kgf.m, 16 lbf.ft).  

15. Tighten the sealing bolt to 20 N.m (2.0 kgf.m, 14 lbf.ft).  

16. Install the cylinder head cover (see CYLINDER HEAD COVER INSTALLATION ).  

VTC ACTUATOR INSPECTION 

1. Remove the cam chain (see CAM CHAIN REMOVAL ).  

2. Loosen the rocker arm adjusting screws (see step 2 of ROCKER ARM ASSEMBLY REMOVAL ).  

3. Remove the camshaft holder (see step 3 of ROCKER ARM ASSEMBLY REMOVAL ).  

4. Remove the intake camshaft.  

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

5. Check that the variable valve timing control (VTC) actuator is locked by turning the VTC actuator 

clockwise and counterclockwise. If the VTC actuator is not locked, replace the VTC actuator.  

6. Seal the advance holes (A) and retard holes (B) in the No. 1 camshaft journal with tape. 

Fig. 54: Sealing The Advance Holes And Retard Holes In The No. 1 Camshaft Journal With Tape 

7. Punch a hole in the tape over one of the advance holes.  

8. Apply air to the advance hole to release the lock. 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

Fig. 55: Applying Air To The Advance Hole 

9. Check that the VTC actuator moves smoothly. If the VTC actuator does not move smoothly, replace the 

VTC actuator. 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

Fig. 56: Checking The VTC Actuator Movement 

10. Make sure the punch marks on the VTC actuator and exhaust camshaft sprocket are facing up, then set 

the camshafts in the rocker shaft holder (see step 6 of ROCKER ARM ASSEMBLY 
INSTALLATION ).  

11. Set the camshaft holders and chain guide B in place (see step 7 of ROCKER ARM ASSEMBLY 

INSTALLATION ).  

12. Tighten the camshaft holder bolts to the specified torque (see step 8 of ROCKER ARM ASSEMBLY 

INSTALLATION ).  

13. Install the cam chain (see CAM CHAIN INSTALLATION ). 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX