I forgot to ask this before. When I took the exhaust manifold of my flathead 6. a couple of the studs came out instead of the nuts coming off and of course, all the antifreeze poured out. Should I try and remove the nuts, thread the stud in and then mount the manifold or leave the nut on and put it back in like a bolt. should I coat the threads with some kind of sealer ? Thanks, Nick
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