Re: new head and gasket seeping already??

Posted by Ol chief on August 18, 2004 at 20:27:20 from (63.246.191.221):

In Reply to: Re: new head and gasket seeping already?? posted by Bob on August 17, 2004 at 23:17:40:

Several weeks or months ago I read a post concerning the torking of bolts It raised the question of whether or not threads should be lubricated to obtain correct torque. At least one reply insisted that correct torque connot be obtained with a lubricated thread.Why?surely GM and GE are not aware of this situation. Both companies recommend lubrication of bolt threads prior to making torque values. At the timeI did not bother to comment on this matter ,just hoped someone would set the person straight.What ever your problem may be I am sure that you will get a more accurate tightening if you clean both male and female and then lubricate the threads.Several tool companies sell items called( die nuts ) to clean up male threads.They work very well.If you do obtain any of these for your use do not use a open end wrench or you may crush the die.Always use a socket or box wrench.It is possible that you did not get an honest torque reading. Also check markings on the bolt heads to ascertain that they are the correct tensile strength ,either grade 5 or grade 8.If some bolts are A lower tensile value they will continue to stretch in service. Sorry for the long post.

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