What's in your stable?

tom917 · 11-24-2011, 01:05 PM

I have a 1986 Toyota Supra 5 speed 90,000 miles
I owned this car for more than ten years and only drive it a couple times a
year.

Due to a large error in the factory head bolt torque specifications, all of these engines had severe problems with blown head gaskets. Toyota never issued a recall for any of the affected vehicles. The problem could be easily fixed by replacing the head gasket and torquing the head bolts to 75 lb·ft (102 N·m) of torque. However, due to the lack of a recall or appropriate service bulletin, the head gasket problem would recur if the gasket was replaced and the bolts were retorqued to the erroneous service manual specifications. With the head bolts torqued correctly, the engines were otherwise extremely durable.

Thank you

Tom

11-24-2011, 01:05 PM	#28
tom917 Stock Join Date: Nov 2011 Location: New Jersey Posts: 4 Blog Entries: 1	I have a 1986 Toyota Supra 5 speed 90,000 miles I have a 1986 Toyota Supra 5 speed 90,000 miles I owned this car for more than ten years and only drive it a couple times a year. Due to a large error in the factory head bolt torque specifications, all of these engines had severe problems with blown head gaskets. Toyota never issued a recall for any of the affected vehicles. The problem could be easily fixed by replacing the head gasket and torquing the head bolts to 75 lb·ft (102 N·m) of torque. However, due to the lack of a recall or appropriate service bulletin, the head gasket problem would recur if the gasket was replaced and the bolts were retorqued to the erroneous service manual specifications. With the head bolts torqued correctly, the engines were otherwise extremely durable. Thank you Tom Attached Thumbnails

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