Take your wrench and cut it in half. It's not an easy job but you can do it.Make sure you have a new gasket on hand.To Lewg...With 310k you might want to clean the manifold ports.Look stright down between the intake runners and you will see 4 counter sunk hex plugs. Remove them and with a long screwdriver insert stright down and tap the ports open.Carbon will have more than likely comepletely covered them.If they are clogged you will see hi exhaust gas temps and the system will not function properly.Good luck on your repair.
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