I recently mounted my Jab 3300 on my CH750. The mount uses 4 AN-6 bolts and 2 AN-4 bolts to secure it to the firewall. AN-363 (metal locknuts) are used. It's been my experience that metal locknuts require a little more "oomph" to wrench than do the usual fiber locknuts. Does this affect the torque values? I've looked at the FAA torque tables and they don't mention AN 363 nuts (or I missed it! LOL!). Also, different values are given for AN-364 and AN-365 nuts used in tension and shear. Looks like an engine mount is in both tension and shear?

Anyone know the correction or actual torque ranges for AN-4 and AN-6 bolts with AN-363 metal locknuts?

John

Views: 1023

Reply to This

Replies to This Discussion

I should add that Lock-Tite will act like a lubricant when torquing so torque to lubed specs. Less torque.

Brian

RSS

New from Zenith:

Zenith Planes For Sale 
 

Classified listing for buying or selling your Zenith building or flying related stuff...

                                                     

Weather Maps


Custom Instrument Panels
for your Zenith
:

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.


Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits


Zenith Apparel from EAA:


Zenair Floats


Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz


Builder & Pilot Supplies:

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

Aircraft Insurance:

 
 

West Coast USA:

Transition Training:

Pro Builder Assistance
 

Pro Builder Assistance

Aircraft Spruce & Specialty for all your building and pilot supplies!

© 2019   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service