ARP Assembly Lubricant for engine assembly and fastener Iistallation. Because of frictional inconsistencies with oil, moly, and other lubricants it takes multiple cycles of torquing the bolt, loosening it, and tightening it again to obtain the required preload or stretch. Typically, when a fastener is first tightened, friction is at its highest point and the preload value or stretch is low. As the fastener is cycled numerous times the friction decreases and the preload increases. This phenomenon is called "preload scatter." With ARP Ultra Torque assembly lubricant, a fastener need only be torqued once to get within 5 percent of ideal preload, and it remains consistent through all subsequent cycles (from race-prep machining through final assembly). Moreover, given the inconsistencies of ordinary lubes, it is quite possible for adjacent head bolts or studs to have vastly different preloads. This scatter causes bore distortion, hampers piston ring seal, and leads to poor head gasket sealing.
To ensure the correct preload is created.
Apply ARP Ultra-Torque® to fastener threads and the underhead of the bolt or underside of the nut.
Install fastener hand tight.
Use torque wrench to install fastener to the torque value from the link below.
NOTE 1: The torque values represented here are intended to be for general information only, not for specific installations.
NOTE 2: On specific installations, when the supplied instructions deviate from the torque values listed here, always follow the specific instructions packaged with each kit.
Lookup torque value by diameter
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ARP Assembly Lubricant
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