21-01-2024, 09:14 AM
ARP rod bolts are correctly installed in elastic tension, so should be reusable.
If they’ve been over tightened, either by the use of a rubbish torque wrench or someone who incorrectly believes they have a calibrated wrist, then they should be replaced.
The ARP website says:
Are ARP bolts and studs re-usable?
Yes. As long as the fasteners have been installed and torqued correctly, and show no visible signs of damage, they can be re-used. If they show any signs of thread galling or corrosion, they should be replaced. In the case of rod bolts, if any of them have taken a permanent set and have stretched by .001” or longer, you should replace them immediately.
If they’ve been over tightened, either by the use of a rubbish torque wrench or someone who incorrectly believes they have a calibrated wrist, then they should be replaced.
The ARP website says:
Are ARP bolts and studs re-usable?
Yes. As long as the fasteners have been installed and torqued correctly, and show no visible signs of damage, they can be re-used. If they show any signs of thread galling or corrosion, they should be replaced. In the case of rod bolts, if any of them have taken a permanent set and have stretched by .001” or longer, you should replace them immediately.