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What would cause oil to leak into the spark plug tubes on a Toyota Cressida with a 6.0 cyl 3.0 engine and what do I need to do to fix it?
Wiki User
∙ 18y ago
the tubes leak past the threads where they screw into the cylinder head. remove the valve covor and take one of the nuts that hold it down and install it on the affected tube upside down. take another one of the nuts and install it rightside up. lock the 2 together by tightening them against each other. use a 1-1/4" wrench on the bottom nut to turn the tube out. clean the threads well and apply red loctite and reinstall using the top nut. this should solve the problem.
Wiki User
∙ 18y ago
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