Axle question....
Thread Starter
|
Tuned
Joined: Nov 2017
Posts: 301
Likes: 144
Take a quick look through this thread:
https://www.keystoneforums.com/forum...ad.php?t=35938
Page 2 has a good visual. What happens when you put a 4' or 6' level on the bottom of the axle? That will tell you if the axle is actually bowed down or not. It also sounds like the axle being upside down is fairly unlikely based on how the axles are assembled and, if the axle is bowed down, it was either overloaded at some point or something else happened to it to make it that way (axle is bent).
I wouldn't go crazy with the u-bolts, if they're tight, just leave them be, you don't want to over torque them and strip or break them.
https://www.keystoneforums.com/forum...ad.php?t=35938
Page 2 has a good visual. What happens when you put a 4' or 6' level on the bottom of the axle? That will tell you if the axle is actually bowed down or not. It also sounds like the axle being upside down is fairly unlikely based on how the axles are assembled and, if the axle is bowed down, it was either overloaded at some point or something else happened to it to make it that way (axle is bent).
I wouldn't go crazy with the u-bolts, if they're tight, just leave them be, you don't want to over torque them and strip or break them.
thanks for the link, I think that helps.
Laughing Gas
Joined: Aug 2006
Posts: 1,002
Likes: 2
From: SW ON, Canada
https://beattiespring.com/blogs/know...uestion-we-get
Laughing Gas
Joined: Feb 2016
Posts: 906
Likes: 119
U-bolts are TTY (torque to yield). Here's an article that provides some good information.
https://beattiespring.com/blogs/know...uestion-we-get
https://beattiespring.com/blogs/know...uestion-we-get
Here's some random recommended torque values for various size U bolts.
https://www.etrailer.com/question-275131.html
https://www.eatondetroitspring.com/h...rings-u-bolts/
https://www.autoandtrucksprings.com/...-u-bolt-torque
Here's a random table of bolt torque values at 75-80% of proof load where proof load is slightly less than where things start yielding. You can find tables like that with similar values all over the internet. See how these values are substantially greater than the U bolt torque values?
https://www.boltdepot.com/fastener-i...ed-Torque.aspx
Laughing Gas
Joined: Aug 2006
Posts: 1,002
Likes: 2
From: SW ON, Canada
... snipped ... My *** they are. People have been re-using u-bolts for a hundred years (and counting) without issue. You can torque any fastener to the point where it yields but nobody who's doing things the normal/right/by the book way is going to do that. ... Here's some random recommended torque values for various size U bolts.
Laughing Gas
Joined: Feb 2016
Posts: 906
Likes: 119
Of course, TTY fasteners are designed with an initial torque value whether it's a U-bolt, engine stud etc. That is a given. TTY does not mean tighten as much as you can until it "yields" no more or "feels right". I'll stick to what the design engineers, specialty spring shop experts and the Factory Service Manual states (Pages 204-02-27 "CAUTION Statement" & 204-02-29, #11).
All fasteners can be TTY if you feel like torquing them that much. U-bolts installed in the typical manner are not torqued enough to yield therefore they are reusable.
The spring shop wants to sell hardware, of course they'll stretch the truth to make the sale.
Thread
Thread Starter
Forum
Replies
Last Post
