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Does gas ruin virgin spark plugs?

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Old 09-14-2016, 02:15 PM
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Default Does gas ruin virgin spark plugs?

I am chasing a no start issue and it seems to be on the spark side of the equation.
I put in new plugs but when I test and try to start the car I am soaking the plugs in gas. So far I've been just letting them dry out and continuing working but should I be changing them?? These are new non-fired plugs.
Old 09-14-2016, 07:21 PM
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1. check for spark, put the plug to ground and fire it to visually notice the spark
2. you can wait for fuel to evaporate, if it is just fuel and no burnt carbon residue. If the plug has gotten black/torched by partially firing under rich conditions then it will need to be cleaned ("blasted" or similar, avoid using actual sand or grit though if possible although if you do it right clean, its fine)

3. If there is that much fuel entering the cylinder you need to be careful of potential hydrolock situations. Too much fuel and it will bend a rod.
Old 09-14-2016, 09:18 PM
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To answer my own question; no, fuel does not ruin a new spark plug.
Old 09-15-2016, 08:38 PM
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I would be far more concerned with the fact that if you are soaking the plugs in fuel, you are washing the rings.



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