Re: To Lub Head Bolts Or Not?

Posted by Paul (in NY) [108.162.219.165] on Thursday, February 11, 2016 at 12:41:50 :

In Reply to: To Lub Head Bolts Or Not? posted by Dean [162.158.255.164] on Thursday, February 11, 2016 at 09:18:40 :

I suggest you download the Technical Reference from Fastenal. This document covers anything you will ever want to know about fasteners. Everyone should have a copy downloaded to reference.

In the Tech Reference, read the section on torque control. If you lube fasteners where the factory spec is for dry insertion and dry torque, you will over torque the fastener and maybe yield it or worse snap it off. The tech reference gives great information on dry and lubed and different plating versus torque. Even thread sealant will change the torque by quite a bit.

www.fastenal.com/content/documents/FastenalTechnicalReferenceGuide.pdf

Paul

Follow Ups:

• Seal on some? Means lube on the rest? - Chris Case 14:03:48 02/11/2016
  • Readdit- lubing can double the tension with the same torque. - Chris Case 14:45:15 02/11/2016
    • No you readdit - Paul (in NY) 15:18:58 02/11/2016
      • Crank em down til they break, then back off half a turn. - Chris Case 15:39:47 02/11/2016
    • Nothing in high school text book, nor '35-52 Motors Manual. - Chris Case 15:01:26 02/11/2016

Post a Followup