Oily #4 spark plug
06-02-2007, 05:46 PM
#1
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Oily #4 spark plug
I changed my plugs this morning, as well performing an oil change. The first 3 plugs were in excellent shape, as they should be with 20K miles on them. (I'm obsessive, sue me 
) The number 4 plug (furthest to the rear of the engine) had oil around the bottom 3 or 4 threads. Upon looking into the spark plug hole, I could see a trace of oil accumulating around the bottom of the tube. I really don't think it's anything to worry about, as it wasn't really a lot of oil, therefore, I believe the leak is very slow. If anyone thinks it should be addressed sooner, please tell me so! At my next oil change interval, I'll do a valve adjustment and replace the spark plug tube seals. Here are some blurry pics from my cheap-ass camera:
the #4 plug is on the left
a blurry close-up of the culprit
) The number 4 plug (furthest to the rear of the engine) had oil around the bottom 3 or 4 threads. Upon looking into the spark plug hole, I could see a trace of oil accumulating around the bottom of the tube. I really don't think it's anything to worry about, as it wasn't really a lot of oil, therefore, I believe the leak is very slow. If anyone thinks it should be addressed sooner, please tell me so! At my next oil change interval, I'll do a valve adjustment and replace the spark plug tube seals. Here are some blurry pics from my cheap-ass camera:the #4 plug is on the left
a blurry close-up of the culprit
06-03-2007, 08:38 AM
#4
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I would put the OEM plugs back in, esp with 20k on them.
The oil in the plug hole is likely due to a spark plug tube seal (the one pressed into the valve cover.
The oil in the plug hole is likely due to a spark plug tube seal (the one pressed into the valve cover.
06-03-2007, 11:30 AM
#6
Registered User
Originally Posted by Billman250,Jun 3 2007, 08:38 AM
I would put the OEM plugs back in, esp with 20k on them.
The oil in the plug hole is likely due to a spark plug tube seal (the one pressed into the valve cover.
The oil in the plug hole is likely due to a spark plug tube seal (the one pressed into the valve cover.
also, do you think using krank vents would exacerbate a leak problem since it puts stress on these seals and makes "popping noises"?
06-03-2007, 11:45 AM
#7
Moderator
Yes, the leak will eventually short out the coil and cause misfires.
I won't get into details, but I don't support krank vents and none of my customers will ever get them.
I won't get into details, but I don't support krank vents and none of my customers will ever get them.
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06-03-2007, 02:26 PM
#9
Moderator
I have nothing against Iridium.
I find it amusing someone would buy a cheaper plug online or where ever, put it in their car, and think they have done some great service.
Honda has entrusted NGK to manufacture a plug, specifically for the s2k. One that has proven to be indestructible in 100k miles.
Changing the plugs to anything else is a dis-service to the car, unless you are FI and need to lower the range.
I find it amusing someone would buy a cheaper plug online or where ever, put it in their car, and think they have done some great service.
Honda has entrusted NGK to manufacture a plug, specifically for the s2k. One that has proven to be indestructible in 100k miles.
Changing the plugs to anything else is a dis-service to the car, unless you are FI and need to lower the range.