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Replacing the spark plug well seals in the valve covers

  #166  
Old 04-24-2018, 07:11 PM
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It all depends on how much oil is leaking into the spark plug well, if it's just 1/4" or so every 60k miles then it won't really affect performance. If it's covering the spark plug then it will cause misfiring and also damage the coil. Dirty oil conducts electricity, especially when you're working in the 50k+ volt range.

It's pretty easy to just put some of the permatex ultra grey that you're going to use for the valve cover gasket onto the spark plug well seals to help seal them up better.
 
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nwellinghoff (04-24-2018)
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Old 04-24-2018, 08:11 PM
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Thanks for the reply Cleric670,

Do you happen to know a link to a detailed overview of how to apply the RTV fix? Assuming I am already going into to replace the valve cover gaskets what is the optimal procedure to RTV the spark plug tubes?

Thank you!
N
 
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Old 04-24-2018, 08:29 PM
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This is as good as I can draw Basically you just spread RTV around the existing spark plug well gasket, clean the surface really well first with brakekleen on a rag so the RTV will adhere and not drip off when you turn it upside down, don't go crazy with the stuff a little goes a long way. If you goo a bunch into the inside of the spark plug well try to clean it up with a screwdriver and a small rag.

 
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Old 04-25-2018, 11:06 AM
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looks easy enough...why are people blowing $ on new covers, drilling holes etc, when they can just do this...thanks for the diagram helps a lot.
 
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Old 04-25-2018, 12:47 PM
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It's not guaranteed to work and the seals are still pretty shat, on second look my drawing looks pretty shat too. You just want to make sure you have RTV between the contact point of the spark plug well and the spark plug well gasket it makes contact on the "cone" part of the gasket.
 
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Old 04-25-2018, 03:48 PM
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Originally Posted by nwellinghoff View Post
looks easy enough...why are people blowing $ on new covers, drilling holes etc, when they can just do this...thanks for the diagram helps a lot.
$70 for a set of ebay valve covers with gaskets isn't blowing money. Oem ones get pricey
 
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