S2000 Under The Hood S2000 Technical and Mechanical discussions.

Running rough after valve adjustment

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Old Jul 25, 2012 | 04:30 PM
  #11  
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.009 intake
.010 exhaust
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Old Jul 25, 2012 | 04:33 PM
  #12  
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Hmm....it's so hard to say without actually being there what could be your issue since you're sure the adjustment was done on a cool engine and done properly.
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Old Jul 25, 2012 | 04:34 PM
  #13  
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I will pull it back apart tomorrow and re-do my work I guess
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Old Jul 26, 2012 | 10:37 AM
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might let the engine sit for more than a couple hours. takes a while for the engine to completely cool.
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Old Jul 26, 2012 | 12:21 PM
  #15  
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For those speaking about letting the car cool down it may be good to know that so long as the cylinder head is below 100°F the adjustment can take place. I always check with an infrared thermometer before getting in to adjusting things. Also...Just to make sure, you did each cylinder while the valves were all the way up...correct? You would have had to rotate the crank pulley numerous times to have the adjustment take place properly.

Everything plugged back in?
All lines going to the correct place?

Out of curiosity, what was the need for the adjustment in the first place and did it run ok before hand?
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Old Jul 26, 2012 | 12:31 PM
  #16  
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I'm about to pull it back apart. FROTH.....I followed the instructions on the blog and as it said each cylinder is 180' from the previous. So I rotated the cylinders so the cams were outboard ( \ / ) and did 1, 4, 3, 2, was it all correct?
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Old Jul 26, 2012 | 12:32 PM
  #17  
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The adjustment was for maintenance purposes car has 76k and I was hearing them tick lately.
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Old Jul 26, 2012 | 01:00 PM
  #18  
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Play-by-play:
Took the plugs out....BLACK. Really really rich way more than before I'm talking it smelled up my garage rich
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Old Jul 26, 2012 | 04:03 PM
  #19  
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Get a hold of a code scanner to see if there are any new codes. You're problem may be with your ignition system.
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Old Jul 26, 2012 | 05:35 PM
  #20  
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Welp we re-did the valves and let it warm up. It runs a little better but sounds like its missing or some timing is off.

The CEL was on and "blinking" so I cut it off and reset the battery. Doesn't blink anymore so I am going to code it tomorrow.

Will update when I have more thank you all for the input.
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