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Cars: Steel bolt vs. aluminum manifold...
Hi there,
I have a problem wherein there is a steel bolt crewed into an aluminum manifold, and both items are oxidized, meaning that the steel has rusted and the aluminum has corroded.
I have tried force, tapping the bolt with a hammer, liquid wrench, various bolt loosening products, all with no success.
Does anyone have a super-secret method of getting things like unstuck?
Thank you for your help.
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Chevynova is spot on from my experience. Soak it in the nastiest chemicallyest shit you can overnight, heat the aluminum around the bolt carefully (not too hot!!) and tap the bolt as you turn. What i do is put the socket in a big vice grip, that way I can tap and turn at the same time, works great!
Good luck!
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Heat. Try heating the aluminum with either a heat gun or torch. Then turn on it while it is hot. The aluminum will expand faster and further. I've heard old geezers just heat the bolt, because the heat then transfers into the threads. Try soaking it in oil overnight too, unless you've done that already. Oh yeah, if you can smell gas, be careful with the torch.
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