S2000 Under The Hood S2000 Technical and Mechanical discussions.

.015 valve clearance... issue ?

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Old Mar 18, 2009 | 09:04 AM
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Default .015 valve clearance... issue ?

So im starting my valve adjustment, the car is cooling down and i checked a few, a lot were .012 .013, 2 was .015 on the exhaust side, can't see any cracked retainers, can't also see any sunken valves... but is that really high ?

it's a 00 with 117 on it, just did an oil change this morning
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Old Mar 18, 2009 | 10:37 AM
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Just to be safe, my mechanic told me it's preferable to have the car sit overnight when doing a valve adjustment (so the car has really cooled off). Just a heads up if you don't know already
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Old Mar 18, 2009 | 10:43 AM
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x2
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Old Mar 18, 2009 | 11:29 AM
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I wouldn't worry about it. See where they are at when it's fully cooled.
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Old Mar 18, 2009 | 01:16 PM
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IIRC, Helm's says the motor should be no more than 100F when doing an adj. So if your outside air temp is 110F, you got a problem.
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Old Mar 18, 2009 | 11:43 PM
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i let it sit over night, gonna start it around 10am, exhaust .010, screw it down, tourqe it, pull the gauge out with pliars, check clearance, turn the crank.. etc

using this

http://www.youtube.com/watch?v=YguimOCYCqY
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Old Mar 19, 2009 | 06:12 AM
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You shouldn't need to pull the gauge out with pliers. The gauge should encounter resistance, but easily be removed by hand. If you have to yank out the .010 gauge, your clearance is below .010.
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Old Mar 19, 2009 | 11:59 AM
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^^^^^correct.. if you are pulling it out with pliers thinking that's correct, please tow to a local mechanic immediately.
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Old Mar 19, 2009 | 02:58 PM
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Originally Posted by vtec9,Mar 19 2009, 09:12 AM
If you have to yank out the .010 gauge, your clearance is below .010.
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Old Mar 19, 2009 | 06:47 PM
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well i'm gonna redo them all and use the go, no go method, i see that the tighter the lock nut is the less the set screw moves.. so its just getting use to how that works.. on a side note, i cleaned my ivac by taking it off, and then using some qtips to clean the middle chamber..

now after about 20 minutes of driving it shudders and won't rev past 2500/3000.... could i have gotten air in the system ?


also.. letting it sit overnight, in new england, if the temp is really low, would that cause any clearance issues.. ?
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