VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 08-16-2021, 07:57 PM
N184DA's Avatar
N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Tacoma, WA
Posts: 189
Default Brake Pad Rivets

Anyone s else have this issue:

Changing out my brake pads, like Iíve done countless times before.
Ordered the pads w/rivets through Vans,, again, just like I normally do.

For years Iíve been using the Rapco installation kit. No hammer required, itís a simple twist-squeeze clamp that allows for fairly precise torque.

In all the years I have been installing the rivets, I rarely had seen any cracks,, (in the rivets). Maybe less than a handful over the years and it was probably a result of me just over squeezing.

Fast forward to today:
Every single rivet in the kit that I used cracked. I went through at least 10, before giving up. I experimented with different pressures and when I was successful at not cracking a rivet, it was obviously loose and under squeezed. Re-squeezing = cracking.

I resorted to an old stock of extra Rapco rivets I had ordered a few years ago from AS&S. They went in easily, no cracking.

I have always used the new rivets from the kit, and never had a problem.

Anyone else?
__________________
Derrick L. Aubuchon
RV4 (Flying, approx 900hrs)
Tacoma Narrows Airport (TIW), WA
dlaubuchon@gmail.com

(2020/2021 dues paid)
Reply With Quote
  #2  
Old 08-16-2021, 08:05 PM
Flyhud's Avatar
Flyhud Flyhud is offline
 
Join Date: Jul 2018
Location: Burleson, TX
Posts: 119
Default

The shop heads of rivets are allowed up to three small cracks if they do not extend inward beyond the crest of the newly formed head and are at least 90 degrees apart.

Click image for larger version

Name:	DBB11EC5-B612-4340-A5B1-FC4315B3FC8D.jpeg
Views:	222
Size:	150.7 KB
ID:	14730
__________________
A&P/IA/ATP
RV-4/160hp/O-320/CS/G3X
Reply With Quote
  #3  
Old 08-16-2021, 08:13 PM
N184DA's Avatar
N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Tacoma, WA
Posts: 189
Default

Quote:
Originally Posted by Flyhud View Post
The shop heads of rivets are allowed up to three small cracks if they do not extend inward beyond the crest of the newly formed head and are at least 90 degrees apart.

Attachment 14730
Thank you for that.
Within limits or not, seems odd that every one of the new rivets cracked.
P
__________________
Derrick L. Aubuchon
RV4 (Flying, approx 900hrs)
Tacoma Narrows Airport (TIW), WA
dlaubuchon@gmail.com

(2020/2021 dues paid)
Reply With Quote
  #4  
Old 08-16-2021, 08:13 PM
Flyhud's Avatar
Flyhud Flyhud is offline
 
Join Date: Jul 2018
Location: Burleson, TX
Posts: 119
Default

Also, I use ATS brake pad dies in my hand rivet squeezer to set the brake pad rivets. These are one of the coolest and easiest to use tools in my box!

https://aircraft-tool.com/shop/detai...ookieSupport=1
__________________
A&P/IA/ATP
RV-4/160hp/O-320/CS/G3X
Reply With Quote
  #5  
Old 08-17-2021, 05:57 AM
n82rb's Avatar
n82rb n82rb is online now
 
Join Date: Jan 2007
Location: fort myers fl
Posts: 1,066
Default

Quote:
Originally Posted by Flyhud View Post
Also, I use ATS brake pad dies in my hand rivet squeezer to set the brake pad rivets. These are one of the coolest and easiest to use tools in my box!

https://aircraft-tool.com/shop/detai...ookieSupport=1
second on that, I bought a set from bob avery when he first came out with them and have never used my old brake tool again.

bob burns
RV-4 N82RB
Reply With Quote
  #6  
Old 08-17-2021, 06:46 AM
lr172 lr172 is offline
 
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,537
Default

I would suspect a manufacturing flaw in the batch of rivets.

Larry
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Reply With Quote
  #7  
Old 08-17-2021, 06:50 AM
Northernliving Northernliving is offline
 
Join Date: May 2005
Location: Boston, MA
Posts: 584
Default

I use the Rapco brake rivet tool and get perfect results every time. It's a nice USA-made tool. I've never seen cracks using this tool.

https://www.aircraftspruce.com/catal...RapcoBrake.php
__________________
Brian J.
Boston, MA
RV8 Based at ORH - Purchased
RV8 - The Project #83313 - Under Construction
Reply With Quote
  #8  
Old 08-17-2021, 06:52 AM
N184DA's Avatar
N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Tacoma, WA
Posts: 189
Default

Quote:
Originally Posted by Northernliving View Post
I use the Rapco brake rivet tool and get perfect results every time. It's a nice USA-made tool. I've never seen cracks using this tool.

https://www.aircraftspruce.com/catal...RapcoBrake.php
Either have I, until now
__________________
Derrick L. Aubuchon
RV4 (Flying, approx 900hrs)
Tacoma Narrows Airport (TIW), WA
dlaubuchon@gmail.com

(2020/2021 dues paid)
Reply With Quote
  #9  
Old 08-17-2021, 05:49 PM
grahambo grahambo is offline
 
Join Date: Jan 2005
Location: Phoenix,AZ
Posts: 19
Default

I believe there are two rivet lengths included in the Van's brake pad kits. Would need to be at the hangar to give you the dash numbers, just remember to use the shorter of the two lengths. The pressure to install the longer ones will crack the pads.
__________________
Jim Graham
RV-4 Flying
Reply With Quote
  #10  
Old 08-17-2021, 05:55 PM
N184DA's Avatar
N184DA N184DA is offline
 
Join Date: Jun 2007
Location: Tacoma, WA
Posts: 189
Default

Quote:
Originally Posted by grahambo View Post
I believe there are two rivet lengths included in the Van's brake pad kits. Would need to be at the hangar to give you the dash numbers, just remember to use the shorter of the two lengths. The pressure to install the longer ones will crack the pads.
Good advice but I was definitely using the short rivets.
__________________
Derrick L. Aubuchon
RV4 (Flying, approx 900hrs)
Tacoma Narrows Airport (TIW), WA
dlaubuchon@gmail.com

(2020/2021 dues paid)
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 05:30 PM.


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.