On other hondas, it varies back and forth over the years and valve architectures. On the S2000, it's definitely under the adjuster screw.

 

so how would I know for sure that I need a valve adjustment, other than just engine noise??

 

by checking the gap. either by a professional or as per Destiny2002
https://www.s2ki.com/forums/showthread.php?...&threadid=93197

you might not need to adjust anything. the only true way to tell is by checking the gap. unless you have bigger problems.

 

If you are wishing the car would idle smoother, it's probably time.

BTW, don't critique the valve's clatter when the car is cold... only after it's warmed up.

 

cool cool, thanks guys...

When cold, the motor even kind of shakes, it never did that before, I think it's time to take it in to the dealer for valve work...

 

I think it would be a mistake to take it to the dealer for this. Valve adjustment is not too difficult, but it takes patience and love to do it properly. An underpaid, disgruntled Honda mechanic isn't going to have those qualities. How would you ever even know they looked at the valves?

 

[QUOTE]Originally posted by gernby
[B]

I think it would be a mistake to take it to the dealer for this.

 

Many cars were mal-adjusted from the factory. If not, you will likely see little change in the adjustment and even more likely little improvement by adjusting them.

If you want to see a "difference," tighten the clearance by .002." The increase in lift and duration is noticeable, and the characteristic Honda "tick" is quieted significantly.

 

I think the specs are .008~.010" for the intake, and .010~.011" for the exhaust, but they are listed in the Helm's service manual. If you don't have a Helm's manual, get one.

Marcucci, did you put your step-by-step valve adjustment guide on on the web?

 

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