<VV> oil filter and alternator mount bolts...
JVHRoberts at aol.com
JVHRoberts at aol.com
Mon Aug 1 19:01:42 EDT 2005
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:
>
<self snip>
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