<VV> oil filter and alternator mount bolts...

[JVHRoberts at aol.com]

On today's engines, things like rod bolts typically are torqued to nearly  
their yield point. In fact, some engines suggest torquing to a certain stretch  
value, instead of a certain torque. 
On large bolts, like those used for holding bridges together, etc., that's  
the ONLY way they are tightened! 
 
 
In a message dated 8/1/2005 9:17:11 A.M. Eastern Standard Time,  
kirbyasmith at gwi.net writes:

OK, but  are bolts normally torqued to  yield?

kirby


JVHRoberts at aol.com wrote:
> Keep in mind,  that bolts are elastic. The number of threads picking up 
> the load  will be whatever it takes. In steel, if you torque to yield, 
> it's  more than three threads. If only three threads picked up the load 
> in  a torque to yield application, most bolts would start to strip! So, 
>  clearly there's more going on here. The bolt will stretch and deform, 
>  either elastically or plastically to equalize the load as  needed.
>  
> In a message dated 7/31/2005 10:37:56 P.M.  Eastern Standard Time, 
> kirbyasmith at gwi.net writes:
>  
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