Hello, I recently purchased a 1991 turbo supra. The previous owner kept all maintenance paper work and service records. All the documents were transferred to me. Today, I was looking through the paperwork and found a $2,500 bill for a head gasket replacement procedure at a Toyota dealer in Washington that dated back to late 2001. The vehicle at the time had 80,000 miles. Today it has 106,000. My question is, was Toyota aware of the incorrect torquing of the head gasket in the year of 2001? Did they re torque the new head gasket correctly or to the same amount of torque as they did in its production days? I see no symptoms of a blown head gasket in my supra at the moment. Is my supra a ticking time bomb?