Thorp Air Command - T18.net

Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
It is currently Thu Mar 28, 2024 10:16 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 7 posts ] 
Author Message
t18joe
 Post subject: Wheel Camber
PostPosted: Tue Sep 14, 2021 10:56 pm 
Newbie
Newbie

Joined: Sun May 15, 2011 7:33 pm
Posts: 16
Location: USA
I have been going thru tires in about 80 hours. Checked the camber = -87.7 deg. I removed the tire and the axle. The gear strut flange angle was about the same. Thinking a shim would work, I made a 2 deg shim. Tried to install the shim, the shim angle was so large the axle holes and the holes in the strut flange were offset. see attachment.

Any ideas would be greatly appreciated

Thanks
Image


Top
 Profile  
 
James Grahn
 Post subject: Re: Wheel Camber
PostPosted: Tue Sep 14, 2021 11:15 pm 
Hero Member
Hero Member

Joined: Sat Oct 24, 2009 7:16 pm
Posts: 1434
Images: 0
Location: USA
Have you tried just a washer?
Cubes


Top
 Profile Personal album  
 
thorpdrvr
 Post subject: Re: Wheel Camber
PostPosted: Wed Sep 15, 2021 1:52 am 
Full Member
Full Member

Joined: Wed Oct 21, 2009 12:35 pm
Posts: 103
Images: 4
Location: USA
Have you check toe alignment? Camber won’t have a big effect on tire wear. Toe in or out will eat them up pretty quick if excessive and make ground handling much more darty/twitchy.


Top
 Profile Personal album  
 
pmandel
 Post subject: Re: Wheel Camber
PostPosted: Sun Sep 19, 2021 9:43 am 
Jr. Member
Jr. Member

Joined: Fri Oct 25, 2019 8:00 pm
Posts: 92
Per prior discussion of wheel alignment in this forum, I used a slice of a Coke can as a shim. Worked like a charm, although for me it was a toe-out issue that needed fixin'.

_________________
Philip Mandel
N118BC
S/N 957
Beaverton OR


Top
 Profile  
 
t18joe
 Post subject: Re: Wheel Camber
PostPosted: Tue Sep 28, 2021 11:58 pm 
Newbie
Newbie

Joined: Sun May 15, 2011 7:33 pm
Posts: 16
Location: USA
Thanks for your inputs. I measured the camber = -2 deg. This tire has 80 hrs (see pic).The A/C has no adverse characteristics during T/O, landing rollout or taxi. I am not comfortable with the bending loads on the bolts (see pic). My approach is, mill a 2 deg taper into a new axle hub face. offset the axle stub holes .025" and spotface (2 deg) the outer bolt hole surface of the axle stub face. My experience in A/C structural testing may promote my overkill outlook. Will advise on the results. I appreciate your inputs


Attachments:
Tire.jpg
Tire.jpg [ 1.02 MiB | Viewed 4938 times ]
Camber Shim.pptx [40.67 KiB]
Downloaded 276 times
Top
 Profile  
 
James Grahn
 Post subject: Re: Wheel Camber
PostPosted: Wed Sep 29, 2021 12:09 am 
Hero Member
Hero Member

Joined: Sat Oct 24, 2009 7:16 pm
Posts: 1434
Images: 0
Location: USA
Wow! That’s a LOT of wear. Are you certain the gear are not bent?
Cubes


Top
 Profile Personal album  
 
thorpdrvr
 Post subject: Re: Wheel Camber
PostPosted: Wed Sep 29, 2021 12:37 am 
Full Member
Full Member

Joined: Wed Oct 21, 2009 12:35 pm
Posts: 103
Images: 4
Location: USA
Did you check the toe yet? Almost guarantee that’s tow out wear, not camber. Would suck for you to spend all that time on camber and wind up in the same boat! I had a Sonerai with somewhat weak spring gear. The camber was always negative. Didn’t affect wear much at all. Off camber doesn’t wear tires much.....toe does!


Top
 Profile Personal album  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

[ Time : 0.188s | 15 Queries | GZIP : On ]