Matronics Email Lists Forum Index Matronics Email Lists
BBS Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Spinner Cracks

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV10-List
View previous topic :: View next topic  
Author Message
johngoodman



Joined: 18 Sep 2006
Posts: 528
Location: GA

PostPosted: Wed Jun 20, 2018 11:52 am    Post subject: Spinner Cracks Reply with quote

We are doing our condition inspection and found some very faint cracks around the bolts that pass through the backplate, S 602B. In fact they are so faint, that we had to clean off the primer and do a fingernail test. Anybody else had this?

John


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
#40572 Phase One complete in 2011
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Lew Gallagher



Joined: 04 Jan 2008
Posts: 394
Location: Greenville , SC

PostPosted: Wed Jun 20, 2018 1:35 pm    Post subject: Re: Spinner Cracks Reply with quote

Hey John,

Curious, are the cracks in the fiberglass of the spinner or the aluminum backing plate. Pics?

- Lew


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !
Back to top
View user's profile Send private message Send e-mail
johngoodman



Joined: 18 Sep 2006
Posts: 528
Location: GA

PostPosted: Wed Jun 20, 2018 2:50 pm    Post subject: Re: Spinner Cracks Reply with quote

The fiberglass is fine - it's the aluminum backing plate.
John


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
#40572 Phase One complete in 2011
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Lew Gallagher



Joined: 04 Jan 2008
Posts: 394
Location: Greenville , SC

PostPosted: Wed Jun 20, 2018 4:31 pm    Post subject: Spinner Cracks Reply with quote

I haven't seen that, but since it's the aluminum, I would suspect
vibration/out of balance. Obviously, replace the plate. But before you do,
maybe slowly run it up while feeling the dash for vibration? Get someone to
electronically balance your prop on the plane to check it out after it's
been replaced? We've got a guy in our EAA chapter here in Greenville, SC
that gives a group rate for balancing if several want to do it at one
sitting.

Before mounting the spinner, I put it on a record turntable and it checked
out very true.

Keep posting your research results.

Later, - Lew

--


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !
Back to top
View user's profile Send private message Send e-mail
robskinner(at)sbcglobal.n
Guest





PostPosted: Thu Jun 21, 2018 3:24 am    Post subject: Spinner Cracks Reply with quote

Could be that the bolt holes were not de-burred correctly and micro cracks turned into something more!

Sent from my Robert's iPad

Quote:
On Jun 20, 2018, at 2:52 PM, johngoodman <johngoodman(at)earthlink.net> wrote:



We are doing our condition inspection and found some very faint cracks around the bolts that pass through the backplate, S 602B. In fact they are so faint, that we had to clean off the primer and do a fingernail test. Anybody else had this?

John

--------
#40572 Phase One complete in 2011




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=481042#481042











- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List
Back to top
johngoodman



Joined: 18 Sep 2006
Posts: 528
Location: GA

PostPosted: Fri Jun 22, 2018 8:02 am    Post subject: Re: Spinner Cracks Reply with quote

As requested, I took some photos today. We also pulled the assembly and found cracks at every bolt - on both sides. I've ordered new parts, but it's obvious that it was just a matter of time. I will attach one sample photo, they all look pretty much the same.
John


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List



SampleCrack1.jpg
 Description:
 Filesize:  67.93 KB
 Viewed:  530 Time(s)

SampleCrack1.jpg



_________________
#40572 Phase One complete in 2011
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Lew Gallagher



Joined: 04 Jan 2008
Posts: 394
Location: Greenville , SC

PostPosted: Tue Jun 26, 2018 1:41 pm    Post subject: Re: Spinner Cracks Reply with quote

Hey John, thanks for the picture. Will definitely put this on the list for next inspection.

Later, Lew


- The Matronics RV10-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV10-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
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 vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group