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Smoking d15z1 has oil on exhaust port of header

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Old 10-13-2010, 05:22 PM
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Default Smoking d15z1 has oil on exhaust port of header

before starting up my d15z1 swap i replaced the header on it and found that one of the exhaust ports was completely coated in oil
i checked the top of the spark plug to see if it was covered with oil but it was dry
how else would it be getting in there?
Old 10-14-2010, 08:36 PM
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Default Re: smokin d15z1

Most likely a bad valve seal and/or valve guide.
Old 10-15-2010, 03:20 PM
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Default Re: Smoking d15z1 has oil on exhaust port of header

how would i check which one it is and how would i fix that?
Old 10-15-2010, 04:44 PM
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Default Re: Smoking d15z1 has oil on exhaust port of header

You might be able to pull the valve cover and inspect the valves and find whats wrong. Unfortunately you're usually stuck pulling the head and taking it to a machine shop to have it checked.
Old 10-15-2010, 05:58 PM
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Default Re: Smoking d15z1 has oil on exhaust port of header

is this a project that would be easier to have a shop do? and how much would a fair price be for this type of thing?
Old 10-15-2010, 06:24 PM
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Default Re: Smoking d15z1 has oil on exhaust port of header

I'm with Kzelisko.
Old 10-15-2010, 07:45 PM
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Default Re: Smoking d15z1 has oil on exhaust port of header

Originally Posted by andocommando
before starting up my d15z1 swap i replaced the header on it and found that one of the exhaust ports was completely coated in oil
i checked the top of the spark plug to see if it was covered with oil but it was dry
how else would it be getting in there?
Don't assume there is ANYTHING wrong yet unless you actually run it.
The oil is probably a leak by if stored on it's side etc, especially as you say the plug looks ok.
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