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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: 1.9TD Caddy on October 05, 2009, 07:34:02 am

Title: Angle torque??
Post by: 1.9TD Caddy on October 05, 2009, 07:34:02 am

Hi guys, time for my silly question. Can anyone explain what angle torque means?
Thanks

Title: Re: Angle torque??
Post by: CdnVWJunkie on October 06, 2009, 08:05:12 am

Angle torque is performed after a preliminary torquing has been completed.  Generally the fasteners are a stretch type and a one time use only.  The method I use, I'm sure there are others, mark each fastener with a paint pen and then with my big breaker bar I make note of my starting point and crank say 90 degrees.  360 degrees is one full rotation so 90 would be a quarter turn.  I use the breaker bar swing as one gauge and the pen marking for verification.

Rob

Title: Re: Angle torque??
Post by: OM617 on October 06, 2009, 10:54:40 am

Bolts clamp like a spring. The angle method stretches the bolt to a known length for it to provide tension. This is why "torque to yield" bolts should never be reused and "stretch bolts" should only be used once if given a choice.

Title: Re: Angle torque??
Post by: 1.9TD Caddy on October 07, 2009, 09:31:48 am

Thanks you guys!