S2000 Under The Hood S2000 Technical and Mechanical discussions.

Is this normal?

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Old 04-19-2010, 01:58 AM
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The first thing I would do if I noticed this probelm is a used oil analysis (UOA) to see if the crankcase engine oil was getting contaminated with coolant. If it is, then the HG needs to be replaced ASAP. Coolant contamination will cause much more serious problems in the engine than you want to deal with.
Old 04-19-2010, 03:13 AM
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Originally Posted by GrannyShifter,Apr 18 2010, 07:05 PM
Is that where the head gasket is located? How much work will it take to get the head gasket replaced? How about typical cost?

BTW, I drove about 15 or so miles today after cleaning it and I don't see a leak yet. Is it possible for it to have repaired itself?
It won't repair itself. It looks like nothing serious leak tho, how many milies on yours?
15 milies won't gives you any idea. I would say give it atleast another few thousands milies.
Replace gasket will takes a time, you need to remove head to get to that area. Idk about cost, if its botherin you then check with local guys who been working on s2k, iam sure they can help you out easier/cheaper than most shop cost.
Old 04-19-2010, 04:29 AM
  #13  
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Your leak is a result of the SEALER (not the head gasket) not having sealed the chain case area. note the grey bead of sealer in ther pic.
So, even if you did a new head gasket, if someone is not spot on with the bead of sealer, it wont help. It may even get worse.
You have a 1/4 of a teaspoon of oil there. heat pulls the oil flat, and makes the leak look bigger than it is.

40% of s2ks look like this, so take this best advice you will ever get: leave it alone It is in no way harming anything, it has no affect on pressure, you are not mixing coolant with oil.
Old 04-19-2010, 05:33 AM
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^awesome.
Bilman question tho, how can we tell its cause by gasket and sealed? Is there more leak if gasket is gone?
Thanks
Old 04-19-2010, 06:26 AM
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Thank you all for the thoughts and opinions, specially Billman for the explanation and pictures.
Old 04-19-2010, 12:56 PM
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I have the same thing on mine... it wipes off and seems to stay clean so far... I thought it was coming from the belt!
Old 04-19-2010, 04:54 PM
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Originally Posted by Billman250,Apr 19 2010, 04:29 AM
Your leak is a result of the SEALER (not the head gasket) not having sealed the chain case area. note the grey bead of sealer in ther pic.
So, even if you did a new head gasket, if someone is not spot on with the bead of sealer, it wont help. It may even get worse.
You have a 1/4 of a teaspoon of oil there. heat pulls the oil flat, and makes the leak look bigger than it is.

40% of s2ks look like this, so take this best advice you will ever get: leave it alone It is in no way harming anything, it has no affect on pressure, you are not mixing coolant with oil.
I stand corrected
Old 04-26-2010, 07:14 PM
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Thanks Billman! I was curious about this on my car as well, I have much less than the OP but it was still worrying me...
Old 04-26-2010, 09:23 PM
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i got this on my car, too.
Old 01-25-2011, 06:59 AM
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wanted to bump this for anyone else concerned with it. I was just researching the same as my engine has the exact stain. Glad to hear its nothing to be concerned about
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