Quote:
Originally Posted by SYT_Shadow
Yes, any bolt has the potential to get plastic deformation, but if you are in the spec it should definitely not stretch.
What they are saying is that if any plastic deformation happens, throw the bolt away. So, the bolts are designed to function exclusively in the elastic zone.
|
Obviously. Every bolt is designed to operate within engineered limits... They wouldn't need to include step 7 on that sheet (and one may never need a stretch gauge) if there was a guarantee that every bolt ever shipped out would only be used within perfect scenarios. The inclusion of step 7 is insurance against all contingencies.
IMO,
*flame suit on*, the whole topic of over-stretching ARP bolts for this DIY application is academic. I don't see evidence of anyone ever cycling a single set of ARP bolts enough to warrant monitoring stretch, much less replacement. For all intents and purposes, I file their recommendation to monitor stretch under their CYA department.