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Hi, I ordered some ARP L19 head studs for my 2jzgte. The manufacture sent a warning with it, to warn the installer to not introduce them to moisture or they will crack. Do you know how sensitive the studs would be? And what precautions I need to take to insure they are installed correctly?
Yes, L19 head studs are susceptible to hydrogen embrittlement. The oils from your hands can actually damage the material, particularly if they are dry and don't have any lubricating oil to protect them. As a precaution it's recommended that you use latex gloves when handling and installing them.
