View Single Post
les_garten les_garten is offline
Macht Schnell
les_garten's Avatar
Join Date: Jun 2003
Location: PSL, FL
Posts: 861
Originally Posted by Rob 930 View Post

There are many people who have reused ARP rod bolts. I've never heard of a problem, but then again, I might not have. Anyone who says "don't reuse them, no matter what ARP says" is acting on fear, not logic or data. In fact, the ARP instructions tell you you must torque them several times *before* you use them in final form. I believe this is to burnish and settle the threads so you have a reliable clamping force, but to be sure, you should talk to them. There may be a danger in reuse is if you don't have any information about their prior condition (and they've been damaged somehow). But again, you're likely to be fine.

I found (and others have found) that the using the torque wrench tends to "understretch" the bolts slightly, as compared with the stretch measurement method. To my knowledge, this isn't a serious problem, because the vast majority of people have had good performance from using just a torque wrench. Again, do a search and you'll find more about this.

If you use stock bolts, which are designed only be torqued once, then you should do all your fitment and testing with the old bolts that you don't intend to use again.

Hi Rob,
It's been a while since I put them in. Now I remember the torque up three times or whatever. They definitely torque smoother each time after cleaning up the threads with each torque. Thanx about the tips above!!

---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 01-18-2008, 04:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)