Honda Accord: Waive Guide Replacement - Cylinder Head -All Models Except PZEV - Engine Mechanical - Honda Accord MK8 2008-2012 Service ManualHonda Accord: Waive Guide Replacement

Special Tools Required

Valve Guide Driver, 5.35 x 9.7 mm 07742-0010100

Valve Guide Reamer, 5.5 mm 07HAH-PJ7A100

1. Inspect the valve stem-to-guide clearance (see page 6-88).

2. As illustrated, 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 valve guide driver, 5.35 x 9.7 mm and a conventional hammer.

3. Select the proper replacement guides, and chill them


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

4. Use a hot plate or oven to evenly heat the cylinder head to 300 Р’В°F (150 Р’В°C). Monitor the temperature with a cooking thermometer. Do not get the head hotter than 300 Р’В°F (150 Р’В°C); excessive heat may loosen the valve seats.

5. Working from the camshaft side, use the driver and an


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.

7. If a valve guide won't move, drill it out with an 8 mm


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

NOTE: 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 new engine oil to the outside of the new valve guide. Install the guide from the camshaft side of the head; use the valve guide driver 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 (0.60-0.64 in) Exhaust: 15.5-16.5 mm (0.61 - 0 . 6 5 in)

10. Coat both the valve guide reamer,-5.5 mm and the


10. Coat both the valve guide reamer,-5.5 mm and the valve guide with cutting oil.

11. Rotate the valve guide reamer clockwise to the full length of the valve guide bore.-

12. Continue to rotate the reamer clockwise while


12. Continue to rotate the reamer clockwise while removing it from the bore.

13. Thoroughly wash the guide in detergent and water to remove any cutting residue.

14. Check the clearances with a valve (see page 6-88). - Verify that a valve slides into the intake and exhaust valve guides without sticking.

15. Inspect the valve seating, if necessary renew the valve seat using a valve seat cutter (see page 6-90).

    Valve Stem-to-Guide Clearance Inspection
    1. Remove the valves (see page 6-86). 2. Subtract the O.D. of the valve stem, measured with a micrometer, from the I.D. of the valve guide, measured with an inside micrometer or a ball gauge. ...

    Valve Seat Reconditioning
    1. Inspect the valve stem-to-guide clearance (see page 6-88). If the valve guides are worn, replace them (see page 6-88) before cutting the valve seats. 2. Renew the valve seats in the cylinder h ...

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