TIL13R

Hello all,

My friend has purchased these bolts for his CVH but the muppet has lost the instructions.

From memory when i built my engine there was a 3 stage torque setting but i cant seem to find what torque they need to go too.

Can Anybody help...?

Cheers

Tiller

rsturbo1991

hi, just fitted these to my s2 the settings are as follows;
use grease on the threads
stage 1 23nm
stage 2 losen then retorque to 23nm
stage 3 losen then retorque to 23nm
as these are stretch bolts, hope this helps, cheeRS, rob.

Rogeyboy

iTrader: (2)

Ive always found this worrying that the bottom end is held together by afew bolts tightened to just 23nm lol

rsturbo1991

yeah i couldnt get my head around that either lol but thats what ive done to mine and its running 18psi of boost with no problems.

Canada1

The correct torque setting for ARP bolts (8mm) is 34nm. This is with ARP lube applied to the threads. Using regular oil as a thread lube I would use at least 40nm.

ARP bolts are NOT stretch bolts.

Using 23nm torque figure is just a ticking time bomb - Don't do it!

rsturbo1991

they are stretch bolts, and 23nm torque, i have arp instructions, if you over tighten you will trash the bearings as many have before, best thing to do would ring arp to be on the safe side, like i said i rebuilt my engine with them and went off the instructions with no problems at all. cheers, rob.

haz87

For a start which version are they? For standard rods or for aftermarket as there are two types for the CVH.
If they are for standard rods then its 22lb/ft with ARP lube
Non-standard rod type are 45 ft lbs with ARP lube. 65 ft lbs with oil (30w).

Canada1

Haz87 is correct!

22lb/ft is not the same as 23nm.

23nm is only 17 lb/ft not enough.

RSturbo1991 is providing incorrect figures. nm is not = lb/ft

TIL13R

It is for Standard rods so what nm/lbft is correct..!?

Cheers

Tiller

Canada1

Standard rods ARP part no. 151-6004
Torque setting: 25 ft/lbs with arp lube

This is right from the ARP catalog.

haz87

As per Canada! Not something you want to torque incorrectly so even when torquing up make sure you have set your wrench to the right format (lb/ft or nm - your choice but they are not the same value)