Harley Davidson Exhaust Flange Nut Torque

This might be a bit high but because it is a steel stud in an aluminum head it could serve as a guide to a maximum limit.

Harley davidson exhaust flange nut torque. Ad Fast Free Shipping on Orders Over 40. Contact Harley-Davidson Customer Support Center at 1-800-258-2464 US. Loosen the exhaust flange nuts and spin them off their studs.

If you are unsure of the proper torque value to use here is a general chart of fastener torque values. See figures 3 4 and 5 for clamp orientation. The torque values I found for that size thread gives 8 ftlbs for a steel to steel interface.

The nfieldgear catalog says the correct torque is 4 ftlbs 48 inlbs. Tighten the top nut of the front cylinder head exhaust flange to 9-18 in-lbs 1-2 Nm then tighten the bottom nut to 100-120 in-lbs 113-136 Nm final tighten the top nut to 100-120 in-lbs 113-136Nm then tighten the bottom nut of the rear cylinder head exhaust flange to 9-18. Harleys head-bolt torque method harkens back to a time when torque specifications were less scientific.

Re-tighten the top nut to 100 to 120 inch-pounds. Route the oxygen sensor wiring back to their respective plugs and secure with wire ties as necessary. Exhaust bolt torque spec.

21Check alignment of both pipes. Remove the clamp bolt which mounts the rear head pipe to the belt drive cover bracket. 14 - 10 ft.

Harley Davidson Master. Tighten the exhaust into place. Harley Davidson 65184-02-7593 Exhaust Flanges Nuts Torque Cones fits model.