fot
[Top] [All Lists]

[Fot] FW: Failed Parts Alert

Subject: [Fot] FW: Failed Parts Alert
From: jerryvv at roadrunner.com (Jerry Van Vlack)
Date: Fri, 18 May 2018 13:42:57 -0400
References: <F9267273-20DD-4B36-B8E5-854FD9236740@me.com> <9e0232b2066d4a8096eed31dc7d3fed0@dieselperformanceparts.com> <6FA248BE-A4C1-4AE0-8C55-16FA8FD772F5@me.com> <98b7d7aa28724e34b804841394d95407@dieselperformanceparts.com> <A3574E8E-EF4A-4A2A-8A8C-8B7FF4351E9A@me.com> <829BC976-A0A2-4AA8-BE60-214CC6A1E064@gmail.com> <4c0c06e39a754634a505b9fb22576e2a@dieselperformanceparts.com>
I?ve had some training in non-destructive inspection methods while working in 
the Naval Nuclear Propulsion Program. As Chuck mentions magnetic particle 
methods are preferred when dealing with ferrous materials. Dye Penetrant is 
good but unless you know how to use the dye, clean excess dye, and how to apply 
the developer white powder you can miss detecting cracks. Too much dye, 
excessive cleaning of dye and over application of developer are all ways to 
mask cracks. Stick with magnetic particle and you?ll find those cracks. Less 
mess too.
JVV

From: DPPI - Mark Craig via Fot 
Sent: Tuesday, May 15, 2018 8:09 AM
To: fot at autox.team.net 
Subject: [Fot] FW: Failed Parts Alert

Wow I had always heard just the opposite. 

Anyone need a Magnaflux Dye kit??????

 


      
     Mark Craig
      Diesel Performance Parts, Inc.
      411 Allied Drive, Nashville, TN 37211
      www.dieselperformanceparts.com
     
        
      
      

      Phone: 615-834-0066
      Fax: 615-834-9923
      Email: mark at dieselperformanceparts.com

       
     

 

 

From: chasgee22 at gmail.com [mailto:chasgee22 at gmail.com] 
Sent: Monday, May 14, 2018 11:11 PM
To: Scott Janzen <sjanzen at me.com>
Cc: DPPI - Mark Craig <info at dieselperformanceparts.com>; fot at 
autox.team.net
Subject: Re: [Fot] Failed Parts Alert

 

Mag inspection is always better than penetrant.  Penetrant requires the cracks 
be open to the surface, mag doesn?t.  The only reason to use penetrant over mag 
is when the material you are checking is not ferromagnetic.

Chuck


On May 14, 2018, at 5:47 PM, Scott Janzen via Fot <fot at autox.team.net> wrote:

  Interesting- I?ve had bad luck with the dye Pegasus sells- mangaflux shows 
cracks it didn?t.

  Sent from my iPhone


  On May 14, 2018, at 6:05 PM, DPPI - Mark Craig <info at 
dieselperformanceparts.com> wrote:

    Great, I got one set of Canley and they rest are stockers and I just bought 
a dye penetrant set that allows me to do it at home. I got enough Magnaflux 
brand dyes and developers in a kit to last me years at about 100.00 bucks on e 
bay. You might want to check it out as it?s more sensitive from what I know as 
compared to magnufluxing a part. 

     

    <image001.png>

     

          <image002.png>
          
         Mark Craig
          Diesel Performance Parts, Inc.
          411 Allied Drive, Nashville, TN 37211
          www.dieselperformanceparts.com
         
          <image003.jpg> <image004.jpg> <image005.jpg> <image006.jpg>
          
          

          Phone: 615-834-0066
          Fax: 615-834-9923
          Email: mark at dieselperformanceparts.com

           
         

     

     

    From: Scott Janzen [mailto:sjanzen at me.com] 
    Sent: Monday, May 14, 2018 4:59 PM
    To: DPPI - Mark Craig <info at dieselperformanceparts.com>
    Subject: Re: [Fot] Failed Parts Alert

     

    Sure- still have both failed pieces.  Fortunately they did not totally fail 
in action!

    Sent from my iPhone


    On May 14, 2018, at 5:56 PM, DPPI - Mark Craig <info at 
dieselperformanceparts.com> wrote:

      Any chance you?d take some pics of the actual failed part with some dots 
or arrows where you are seeing the cracks for us so we know better where to 
look for them??

       

            <image001.png>
            
           Mark Craig
            Diesel Performance Parts, Inc.
            411 Allied Drive, Nashville, TN 37211
            www.dieselperformanceparts.com
           
            <image002.jpg> <image003.jpg> <image004.jpg> <image005.jpg>
            
            

            Phone: 615-834-0066
            Fax: 615-834-9923
            Email: mark at dieselperformanceparts.com

             
           

       

       

      From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of Scott 
Janzen via Fot
      Sent: Monday, May 14, 2018 11:18 AM
      To: 'Friends of Triumph' Triumph <fot at autox.team.net>
      Subject: [Fot] Failed Parts Alert

       

      I?ve been using the trunnionless front suspension vertical link on my GT6 
that Canley Classics sells for the past two years.  I?ve now had two fail the 
annual magnaflux tests.  They cracked in different locations, one right at the 
machining line for the flat for the stub axle nut, on the back side where the 
steering arm passes through, and one on the upright at what appeared to be a 
casting mark, near the bump you see in the photo below.  Neither crack was 
visible to the eye. The upright Canley sells no longer looks exactly like the 
photo - it now has a machined area on the back side, away from the wheel, much 
like stock ones.  Maybe I just had bad luck, but between two cracks and some 
binding issues at the ball joint I had to rectify, I would no longer recommend 
these.

       

      I started using the Canley units when the stock ones developed cracks in 
the traditional place at the top end of the threads where the trunnion is.

       

      I have now installed uprights I got from Jigsaw Racing 
https://jigsawracingservices.com - Mark Field, in England.  The main difference 
from stock is they are not drilled for a grease fitting or grease boring down 
into the trunnion, which should make them stronger where the stock ones usually 
fail.  Mark races Spitfires and GT6s for himself and for customers in vintage 
racing and claims he has never had a failure.  He further claims that the units 
are made in the original forging molds and by the same people that made the 
Stanpart units.

       

      Main point is, even though it?s a pain, pull your critical parts off and 
get them magnafluxed at least once in a while.  I?ve become paranoid and this 
is now an annual exercise.  The machine shop I go to usually does it for free 
while I am watching, probably because I?m usually dropping off engine parts 
where the real dollars get spent!  

       

      <image006.png>

  _______________________________________________
  fot at autox.team.net

  http://www.fot-racing.com

  Donate: http://www.team.net/donate.html
  Archive: http://www.team.net/pipermail/fot
  Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/chasgee22 at 
gmail.com



--------------------------------------------------------------------------------
_______________________________________________
fot at autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/pipermail/fot


-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 13119 bytes
Desc: not available
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 2153 bytes
Desc: not available
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 2472 bytes
Desc: not available
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.jpg
Type: image/jpeg
Size: 3083 bytes
Desc: not available
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image005.jpg
Type: image/jpeg
Size: 2784 bytes
Desc: not available
URL: 
<http://autox.team.net/pipermail/fot/attachments/20180518/f8d5ec34/attachment-0003.jpg>

<Prev in Thread] Current Thread [Next in Thread>