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Spark plug help..How tight should they be?

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Old 02-04-2010, 05:27 PM
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Spark plug help..How tight should they be?
I have read some threads and some people are saying that they should be tightened at 18ft-lbs and 20ft-lbs. Does anyone know what it should really be at?
 
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Old 02-04-2010, 06:15 PM
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You tighten them by hand until they feel tight then give a 1/4 of a turn.
 
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Old 02-04-2010, 06:19 PM
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11) Replace the spark plug with your new plug! Torque the plug to 20 FT-LBs! Make sure not to crossthread or overtorque the plugs! Aluminum heads are easy to strip out!
^^^
 
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Old 02-04-2010, 06:26 PM
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In reality, the difference inbetween 18-20ft/lbs is small. whatever torque wrench you use is probably has an effor factor close to +/- 1lb
 
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Old 02-04-2010, 06:39 PM
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The service manual says 18ft lbs, however, if you use anti-seize, you should drop that # by about 20% (result = ~15 ft lbs).
Spark plug help..How tight should they be?-untitled-1.jpg
 
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Old 02-04-2010, 08:47 PM
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thanks for your guy's help. I'm gonna change them Saturday and I just wanted to make sure
 
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