Acura TSX / Honda Accord CL. Manual - part 438

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Valve guide driver, 5.5 mm 07742-0010100  

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Valve guide reamer, 5.5 mm 07HAH-PJ7A100  

1. Inspect valve stem-to-guide clearance (see VALVE STEM-TO-GUIDE CLEARANCE 

INSPECTION ).  

2. As illustrated below, use a commercially available air-impact valve guide driver (A) modified to fit the 

diameter of the valve guides. In most cases, the same procedure can be done using the special tool and a 
conventional hammer. 

Fig. 143: Identifying Valve Guide Driver Modified To Fit The Diameter Of The Valve Guides 

3. Select the proper replacement guides, and chill them in the freezer section of a refrigerator for about an 

hour.  

4. Use a hot plate or oven to evenly heat the cylinder head to 300°F (150°C). Monitor the temperature with a 

cooking thermometer. Do not get the head hotter than 300°F (150°C); excessive heat may loosen the 
valve seats. 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

Fig. 144: Heating The Cylinder Head 

5. Working from the camshaft side, use the driver and an air hammer to drive the guide about 2 mm (0.1 in.) 

towards the combustion chamber. This will knock off some of the carbon and make removal easier. Hold 
the air hammer directly in line with the valve guide to prevent damaging the driver.  

6. Turn the head over, and drive the guide out toward the camshaft side of the head. 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

Fig. 145: Driving The Guide Out (Using Air Hammer)

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX

  

 

Fig. 146: Driving The Guide Out (Using Conventional Hammer) 

7. If a valve guide won't move, drill it out with a 8 mm (5/16 inch) bit, then try again. Drill guides only in 

extreme cases; you could damage the cylinder head if the guide breaks.  

8. Remove the NEW guide(s) from the freezer, one at a time, as you need them.  

9. Apply a thin coat of clean engine oil to the outside of the NEW valve guide. Install the guide from the 

camshaft side of the head; use the special tool to drive the guide in to the specified installed height (A) of 
the guide (B). If you have all 16 guides to do, you may have to reheat the head. 

Valve Guide Installed Height: 

Intake: 15.2-16.2 mm (0.598-0.638 in.)  

Exhaust: 15.5-16.5 mm (0.610-0.650 in.) 

 

2004 Acura TSX 

2004 ENGINES 2.4L DOHC VTEC - TSX