S2000 Under The Hood S2000 Technical and Mechanical discussions.

Valve adjustment

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Old Feb 2, 2009 | 01:27 AM
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Default Valve adjustment

I've adjusted the valves with minute detail and torqued the nuts to the 14ft lbs as in the service manual.
After about 700 miles they have begun to tick again, I'm wondering whats the max torque anyone has applied to these nuts, I don't want to do any damage....

Or has anyone else had a similar problem and replaced the nuts to fix the problem, a last resort would be to remove the rocker arm assembly and replace the adjusting screws.
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Old Feb 2, 2009 | 02:48 AM
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same things happened to me...but from what I have been told, if you hear nothing then your in trouble.

If you take your valve cover off again you will see that everything should still be spec'd correctly, at least for he it was. The S2000 engine is just noisy, kinda something you just need to learn and love.

Good luck
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Old Feb 2, 2009 | 05:19 AM
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To be honest this is the second time I have adjusted the valves to correct spec.

3 or 4 of the valves had shifted out of tolerance the last time.
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Old Feb 2, 2009 | 11:16 AM
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maybe your torque wrench is not calibrated well enough to get a good reading on 14 lb/ft. perhaps you should try tightening a little more...if you're experienced you can get a good feel of the torque by just torquing with your hand. however, this is not recommended if you are not experienced or do not have a good feel for tension/torque.
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Old Feb 2, 2009 | 02:38 PM
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Properly adjusted valves on the s2k will stay put for 70-100k miles, and will not tick. Even if they are a few thousandths loose.

I have confirmed this on my car (90k miles and adjustment remains .008 and .010) and many other s2ks with 50k miles or so on the current adjustment.
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Old Feb 2, 2009 | 02:57 PM
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The fuel injectors make a sort of ticking noise. Could be you are confusing yourself.
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Old Feb 3, 2009 | 07:58 AM
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I'm experienced enough not to use a torque wrench for something as low as 14ft lbs so I didn't the first time.
The second time I borrowed a calibrated wrench from work.
I'm gonna see what 25-30ft lbs feels like Saturday morning, fingers crossed
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Old Feb 3, 2009 | 08:07 AM
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Keep us updated.
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Old Feb 3, 2009 | 08:55 AM
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Will do
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Old Feb 4, 2009 | 04:35 AM
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Originally Posted by S2k Eire,Feb 2 2009, 02:27 AM
I've adjusted the valves with minute detail and torqued the nuts to the 14ft lbs as in the service manual.
After about 700 miles they have begun to tick again, I'm wondering whats the max torque anyone has applied to these nuts, I don't want to do any damage....

Or has anyone else had a similar problem and replaced the nuts to fix the problem, a last resort would be to remove the rocker arm assembly and replace the adjusting screws.
Totally and 110% off topic but that avy is hot, who the hell is she
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