2jZ-GTE - ARP rod bolt torque spec

May 18, 2007
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Aarhus
I'm changing the rod bearings on my 2JZGTE before dropping it in.

I bought some ARP rod bolts and reading the instructions it tells me to torque it down using some kind of device to measure stretch. I don't know how to do that.

If I can't do that then they tell me to torque it to 50 ft/lb in three steps (torque/unscrew torque/unscrew and then finally torque 50). I tried that on on one of the Toyota bolts just to compare to the OEM specs and it felt way less than the OEM. I do realize that properties of the metal in the ARP bolts are most likely different than OEM and they will stretch in another way and maybe way less.

But I decided to torque the ARP bolts in the OEM way with 29 nm and then a 90 degree turn.

Now I have second thougths. Would this be the road for disaster?

If so I'll yank out the ARPs and get some OEM bolts instead and torque to OEM specs.
 
May 18, 2007
704
0
16
52
Aarhus
Yes that is exactly what I'm affraid of. It was just those 50 ft/lbs didn't feel like anything.

Gonna order OEM bolts and be done with it. It is only going to take slightly more than stock level hp.