VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-4
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 06-21-2016, 01:34 PM
F1R F1R is offline
 
Join Date: Nov 2010
Location: ____
Posts: 618
Default

FWIW. Acklands Grainger also stocks and sell taper pin reamers.
Reply With Quote
  #12  
Old 11-06-2018, 01:12 PM
SeanB's Avatar
SeanB SeanB is offline
 
Join Date: Dec 2006
Location: Colorado Springs
Posts: 437
Default hardware

I've installed taper pins in the tailspring of my RV7. Reading the EXCELLENT post by Vince earlier in this thread, he calls out "AN365-832 or
AN320-832 nuts" for these pins. I ordered those and they seem too small. -1032 nuts seem to fit correctly. Sound correct?

Also, confirming, the "cupped" washer has the larger opening facing away from the nut, correct? Flat washer not needed in addition, unless for thread spacing?

Torque should be about the same as the respective AN3 and AN4 bolts we are replacing?

Thanks!
__________________
SEAN BLAIR V7
Colorado Springs, CO
http://www.mykitlog.com/sblair
2017 VAF SUPPORTER
Reply With Quote
  #13  
Old 11-06-2018, 03:07 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 3,588
Default

Quote:
Originally Posted by SeanB View Post
I've installed taper pins in the tailspring of my RV7. Reading the EXCELLENT post by Vince earlier in this thread, he calls out "AN365-832 or
AN320-832 nuts" for these pins. I ordered those and they seem too small. -1032 nuts seem to fit correctly. Sound correct?

Also, confirming, the "cupped" washer has the larger opening facing away from the nut, correct? Flat washer not needed in addition, unless for thread spacing?

Torque should be about the same as the respective AN3 and AN4 bolts we are replacing?

Thanks!
Sean, Don't use the full torque. All you need is enough to hold the pin securely. It's only a shear connection. Some people have mentioned that they tap the pins in to seat them and gently tighten the nuts, and this is what I'll do.

Also, the cupped washer is to clear the pin on that end. The narrow end of the pin pokes out of the hole just a bit (try to minimize that) and the cup washer allows for that.

Dave
Reply With Quote
  #14  
Old 11-06-2018, 05:50 PM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 4,513
Default

Quote:
Originally Posted by David Paule View Post
Sean, Don't use the full torque. All you need is enough to hold the pin securely. It's only a shear connection. Some people have mentioned that they tap the pins in to seat them and gently tighten the nuts, and this is what I'll do.

Also, the cupped washer is to clear the pin on that end. The narrow end of the pin pokes out of the hole just a bit (try to minimize that) and the cup washer allows for that.

Dave
There is a specification for that nut and its less than half of the standard. If you do the wedge calculations for the pin contact stress vs axial load, you will find it is very high. It is an incredible leverage.
__________________
Bill

RV-7
1st Flight 1-27-18
Phase II 8-3-18
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 03:43 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.