ROD BOLT TORQUE INSTRUCTIONS AND SPECIFICATIONS

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Torque instructions for bolts in rods manufactured by

              Murphy's Motor Service

 

NOTE! ALL rod bolts require a specified lubricant when being torqued.

Lubricate liberally the threaded portion and under the head of bolt.

(the friction/mating surfaces of the fasteners and rod)

NOTES!!!

DO NOT USE LOCTITE ON ROD FASTENERS!!!!!!!!!!!!!!!!

DO NOT USE SYNTHETIC OIL FOR LUBRICANT ON FASTENER!

DO NOT CONVERT IN LB TORQUE SPECIFICATION TO FOOT LBS!

 

USE torque specification for specific fastener used.

 

5/16-24 x 1 Torx head cap screw (uses T45 torx plus bit)

 400 inch lbs using 30wt motor oil  (Snap On # FTX45TPE)

 

5/16-24 x 1 hex head ARP 2000 (5/16 hex head)

 410 inch lbs using 30wt motor oil

 

5/16-24 x 1 "Murphys" bolt (5/16 12pt head)

 425 inch lbs using 30wt motor oil

 

3/8-24 x 1 "Murphys" bolt (3/8 12pt head)

 600 inch lbs using 30wt motor oil

 

3/8-24 x1.5 ARP 2000 bolt

 50 foot lbs using ARP moly lube only IN STEEL RODS

 50 foot lbs using 30 wt motor oil only IN ALUMINUM RODS

 

7/16-20 ARP 2000 bolt

 75 foot lbs using ARP moly lube only

 

Steel rods typically do not use a washer under the head of the bolt.

Aluminum rods typically WILL use a washer under the head of the bolt.

IF YOUR RODS USE WASHERS make sure that the chamfer on the

ID of the washer is towards the head of the bolt. This chamfer is to

provide clearance for the fillet where the bolt head meets the bolt shank.