Join Date: Jul 2003
Location: Tucson, AZ, USA
Re: Advice on Tightening Exhaust Manifold
Take the old nuts (and lock washers? I can't remember...) off and toss them, replace with new OEM.
Clean the studs with carb cleaner and a brass detail "toothbrush". Put a drop of motor oil on each one, brush it on the threads with a NEW nylon toothbrush and hand tighten until "very snug". Let them sit a minute and tighten again. Unless you have an extremely accurate torque wrench I would not mess with it - you are unlikely to get a good reading since the studs are stressed and not factory clean.
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Last edited by RonKMiller; Dec 31st, 2009 at 8:06 pm.