|
-
POSTING RULES
-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|
05-27-2013, 06:31 PM
|
|
|
|
Join Date: Nov 2007
Location: Kent, WA
Posts: 8
|
|
Should I replace the prop bolts?
I had to remove the prop on my RV9. When I put it back on, do I need to use new prop bolts or can I ( safely) use the old bolts?
Thanks.
Kim Nicholas
Auburn, Wa
|
05-27-2013, 06:35 PM
|
 |
|
|
Join Date: Feb 2005
Location: Huskerland, USA
Posts: 5,862
|
|
Welcome to VAF.
The bolts can safely be reused.
__________________
RV-7 : In the hangar
RV-10 : In the hangar
RV-12 : Built and sold
RV-44 : 4 place helicopter on order. 
|
05-28-2013, 06:02 AM
|
 |
|
|
Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
|
|
Also if the prop is wood, check the bolts for "stretching" at the base of the threads.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
|
05-28-2013, 08:02 AM
|
 |
|
|
Join Date: Aug 2010
Location: Gilbert AZ
Posts: 414
|
|
?
Quote:
Originally Posted by Mel
Also if the prop is wood, check the bolts for "stretching" at the base of the threads.
|
Mel, can you explain further? What causes this and what does it look like?
Thanks!
__________________
Jeremy
ATP, CFI, CFII
RV-7 N424JD KCHD
EAA Tech Counselor
2017 Bronze Lindy
|
05-28-2013, 08:10 AM
|
 |
|
|
Join Date: Oct 2008
Location: Utah
Posts: 8,145
|
|
Quote:
Originally Posted by Mel
Also if the prop is wood, check the bolts for "stretching" at the base of the threads.
|
Yes Mel please tell how to check them. I have 730 hours and retourqued them 5 times. |
05-28-2013, 08:31 AM
|
|
|
|
Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
|
|
What can happen is; If the prop is torqued when the humidity is dry and later the humidity increases, a wood prop will swell somewhat. This can, and has, caused the prop bolts to stretch and in extreme cases break.
It is pretty obvious when the bolts stretch. You can see it at the base of the threaded portion of the bolt.
I brought this up at an EAA presentation once and one of the guys went home and checked the prop bolts on his Hiper-Bype. He found that they were all stretched and one was actually broken.
I just found a picture of a stretched prop bolt that I have.
I don't do pictures here but if someone will give me an email address, I'll send it to you and you can post it.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
Last edited by Mel : 05-28-2013 at 08:44 AM.
|
05-28-2013, 08:52 AM
|
|
|
|
Join Date: Oct 2008
Location: Utah
Posts: 8,145
|
|
Email address in the profile
Mel please send the pic to N666BK@gmail.com I will post it. |
05-28-2013, 08:59 AM
|
|
|
|
Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
|
|
Quote:
Originally Posted by Vlad
|
Sent!!!!!!
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
|
05-28-2013, 09:23 AM
|
|
|
|
Join Date: Oct 2008
Location: Utah
Posts: 8,145
|
|
Wow that's quite a stretch!
 |
05-28-2013, 09:25 AM
|
|
|
|
Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
|
|
Yes, this is an extreme situation, but you get the picture of what to look for.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 06:44 PM.
|
Linear Mode
