Q: I have an oil leak at the engine and Turbo connection. on 1995 Volvo 850

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I was told there are rings to change. Is that the case? If so what do I have to do?
(1) Answer
This is the oil return line from the turbo to the oil pan. The tube is held on by two small bolts at the top of the pipe, where it connects to the turbo.
Once those bolts are removed, pull the pipe out of the oil pan. Clean out the oil pan hole, and any gasket material, then install a new gasket and seal, then re-install.Make sure you use the correct parts, they are very inexpensive so only use Volvo parts.
Good Luck