bnamunds Posted March 15, 2017 Share Posted March 15, 2017 When I removed the exhaust manifold from my 2.5L petrol 17H motor today I looked inside the block into the exhaust valve area and noticed that one of them is full of what looks like wet oil, and the others are much more dry. Reference the pictures below, ("exh valve.jpg" is the wet valve, "exh valve(1).jpg" is the dry valve) but is it normal for oil to leak down into the exhaust ports around the valves? If that's not normal, what do you think would cause that and how could I fix it? Quote Link to comment Share on other sites More sharing options...
Eightpot Posted March 15, 2017 Share Posted March 15, 2017 Valve oil seal worn. Cylinder head gasket kits often come with new ones- little cylindrical seals, use a valve spring compressor tool to compress valve spring enough to remove the collet and withdraw the valve (can buy one at halfords) Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 15, 2017 Share Posted March 15, 2017 Could also be a worn valve guide, if it is too worn the valve waggles about so much there is no way a new seal will ever fix it. They are cheap to replace though Quote Link to comment Share on other sites More sharing options...
Les Henson Posted March 15, 2017 Share Posted March 15, 2017 Hopefully it's a stem seal, as they are relatively easy job to replace in comparison to a guide. Les Quote Link to comment Share on other sites More sharing options...
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