[NSRCA-discussion] YS Problem

Tue Jun 2 20:33:54 AKDT 2009

I had that problem a long time ago on a Rossi. Lost a bunch of spinner cones before a fellow club member gave me the answer. Turns out the spinner backplate would slip on the drive hub which tightened the spinner screw so tight the head would break off with the spinner departing shortly thereafter. The fix was to cut a disk out of emery cloth and put it between the backplate and drive hub. Never lost another one after that. Might be worth looking at the backplate to see if it's been slipping. You can also pin the backplate to the drive hub which will save or at least minimize the damage from a backfire. Hope this helps.

Verne Koester

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Jon Lowe
Sent: Tuesday, June 02, 2009 11:24 PM
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] YS Problem

I had a bolt break in two, no kick, and I had the same thing happen.  
Was the end of your bolt still in the adapter?  I now change bolts 
semi-frequently.  Of course it had to happen in the middle of a judged 
round, Jason Shulman was judging and saw it, so I zeroed the round from 
that point on.

Jon Lowe

-----Original Message-----
From: Archie Stafford <astafford at swtexas.net>
To: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
Sent: Tue, 2 Jun 2009 10:08 pm
Subject: Re: [NSRCA-discussion] YS Problem

That’s OK..I lost an almost brand new spinner tonight.  Didn’t
have a YS kick to do it..I guess the bolt wasn’t as tight as I 
thought…just the
cone came off…3 week old anodized Tru Turn….grrr….

From:
nsrca-discussion-bounces at lists.nsrca.org 
[mailto:nsrca-discussion-bounces at lists.nsrca.org]
On Behalf Of Atwood, Mark

Sent: Tuesday, June 02, 2009 10:05 PM

To: General pattern discussion

Subject: Re: [NSRCA-discussion] YS Problem

I’ll read the link…

Sounds good!  You missed a beautiful night to fly.  So
did I L

From: nsrca-discussion-bounces at lists.nsrca.org0D
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Anthony
Abdullah

Sent: Tuesday, June 02, 2009 10:56 PM

To: General pattern discussion

Subject: Re: [NSRCA-discussion] YS Problem

None taken :o)

I hope like hell I'm wrong!!!

Attached is a link to a thread in RCU titled
  "Injector coming out of head"

http://www.rcuniverse.com/forum/m_7197327/anchors_7210131/mpage_1/key_/anchor/tm.htm#7210131

Speaking of YS and fun, I am pulling a half the niter converting
   my Black Magic to electric... Hmmmmmm Let me tell you, it was NOT fun 
trying
   to get the nose ring out, damn that thing was in there good. Other 
than that
  it is going fairly well actually almost done staring at it.  

  --- On Tue, 6/2/09, Atwood, Mark <atwoodm at paragon-inc.com>
  wrote:

  From: Atwood, Mark <atwoodm at paragon-inc.com>

  Subject: Re: [NSRCA-discussion] YS Problem

  To: "General pattern discussion"
  <nsrca-discussion at lists.nsrca.org>

  Date: Tuesday, June 2, 2009, 10:43 PM

In
  a word…  Crap!

Anyone
   else??  I’d
 like a second opinion!!!! (nothing personal Anthony but 
your
  opinion ..well…sucks. lol)   I have a feeling you’re correct
  though, much to my chagrin.  Not having a good YS moment.

From:
   nsrca-discussion-bounces at lists.nsrca.org 
[mailto:nsrca-discussion-bounces at lists.nsrca.org]
  On Behalf Of Anthony Abdullah

  Sent: Tuesday, June 02, 2009 10:42 PM

  To: General pattern discussion

  Subject: Re: [NSRCA-discussion] YS Problem

Mark,

Bad news, you can not put that back in so it does not pup out again.
     From what I have read, that problem isn't really user serviceable. 
I have
     read posts of guys pressing them back in and even some guys using 
JB Weld
     to keep them in. Usually that is a problem that requires the engine 
to go
    back to YS.

Sorry to hear that!

Anthony

    --- On Tue, 6/2/09, Atwood, Mark <atwoodm at paragon-inc.com>
    wrote:

    From: Atwood, Mark <atwoodm at paragon-inc.com>

    Subject: [NSRCA-discussion] YS Problem

    To: "General pattern discussion"
    <nsrca-discussion at lists.nsrca.org>

    Date: Tuesday, June 2, 2009, 10:16 PM

0D

The short version…    YS1.70DZ – the brass fitting on
     the TOP of the head (towards the back) that has the black check 
valve
    pressed onto it blew out of the engine in flight!!  Needless to say
    the motor quit.

It appears to be a pressure fit.    I pressed it back
    in (I knew this wouldn’t work, but what the heck), started the
    engine.  It idled great, ran up great, took off, and as soon as the
    motor warmed up (about two passes, pulled vertical and POP…dead as a
    rock.  Landed… and the fitting had popped out again.

So I have a few questions…

What caused this to pop out in the first place??

What do I do to put it back in SECURELY

HELP!!!!

-Mark

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