oil leak |
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mickjon
Newbie Joined: 19-March-2010 Location: Dublin Status: Offline Points: 7 |
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Posted: 13-April-2011 at 09:21 |
Hello im looking for some help please if somebody will be so kind,situation is i have an oil leak and i was told it may have occured by someone tightening spark plug to much at a previous service, it was suggested that i could need a top gasket and rubber seals that are at plugs and as im not mechanically minded i was wondering if anyone could tell me what the parts name are and were would the best place to be to order them from as money is tight as we all know, my motor is a 02 520i petrol manual, any help at all would be most helpful and thanks for taking the time to read this post regard michael. |
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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Over tightening a spark plug shouldn't cause an oil leak. Oil shouldn't be getting into the bores of the cylinder head where the coils are located. If oil is leaking out thru the spark plug then combustion gases must also be leaking out making you down on power. Spark plugs come with their own sealing rings but the ignition coils which then fit on top of the spark plugs and within the cylinder head orifice have rubber seals at the top of the coils. I cant see the pictures at work but this thread I think should have a picture of a coil sat on an air filter and you may just be able to see the seals around the top of the coil. My coils and cylinder head bores were all bone dry. Looking here there doesn't appear to be any gaskets listed that fit between the cylinder head cover and the cylinder head around the area of the coils, just the large cylinder head cover gasket. Someone else can mibbie help with that part. It's more likely you have an oil weep from the cylinder head cover gasket. You would need to strip out each HT coils and look down each cylinder head bore to try and see which cylinder has this leak if it is indeed from a spark plug or sealing ring in that vacinity. That's easy enough for a garage to do to confirm the oil leak source and it wouldn't cost the earth to do. HTH Andrew |
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mickjon
Newbie Joined: 19-March-2010 Location: Dublin Status: Offline Points: 7 |
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Thanks Andrew think as you say put it into garage and let them find the leak then hit the bank manager lol,mind you the banks are worse off than me here it seems, thanks for your feedback and time and hope weather is nice is Bonnie Scotland il be over there again soon cheers
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