Honda S2000 Valve Clearance Adjustment

by NinjaX on June 29, 2010

Honda S2000 valve adjustment applies to 1999-2003 AP1 models.

Adjust the valves only when the cylinder head temperature is less than 100°F (38°C).

1. Remove the cylinder head cover.
2. Set the No. 1 piston at top dead center (TDC). The TDC marks on the cam chain sprocket should align with the cylinder head surface. See image.
3. Select the correct thickness feeler gauge for the valves you’re going to check.

  • Intake: 0.21-0.25 mm (0.008-0.010 in.)
  • Exhaust: 0.25-0.29 mm (0.010-0.011 in.)

4. Insert the feeler gauge between the adjusting screw and the end of the valve stem and slide it back and forth; you should feel a slight amount of drag. See image.
5. If you feel too much or too little drag, loosen the locknut, and turn the adjusting screw until the drag on the feeler gauge is correct. See image.
6. Tighten the locknut and recheck the clearance. Repeat the adjustment, if necessary.
7. Rotate the crankshaft 180° clockwise (camshaft gears turn 90°). See image.
8. Check and, if necessary, adjust the valve clearance on No. 3 cylinder.
9. Rotate the crankshaft 180° clockwise (camshaft gears turn 90°). See image.
10. Check and, if necessary, adjust the valve clearance on No. 4 cylinder.
11. Rotate the crankshaft 180° clockwise (camshaft gears turn 90°). See image.
12. Check and, if necessary, adjust the valve clearance on No. 2 cylinder.
13. Install the cylinder head cover.

Got questions and comments on adjusting valves on Honda S2000? Let us know below!

{ 4 comments… read them below or add one }

Louie November 5, 2010 at 12:55 pm

How much will it cost it i have a pro do it?

spartanix November 5, 2010 at 11:27 pm

Best thing to do is call your local auto shops and get a estimation from them. You’ll get a better idea who’s charging the least.

richard miller March 7, 2011 at 6:57 pm

is it the same for an 06?

Lovenpain August 28, 2011 at 12:20 pm

This is really easy guy! Just a tip: you can do a NO GO and GO process. For example: let’s say like what my setup was .008 on the exhaust. I use .009 as my NO GO feller. Tightened the nut down on the .009 where you have to use pliers to pull it off. Then slide in the GO gauged at .008. You should feel a little resisted but not where the GO feeler is moving freely. On the intake do the the same. I chose .010 as my GO and .011 as my NO GO. Then reassemble and start her up!;)

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