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Re: [TR] spring compressor

Subject: Re: [TR] spring compressor
From: "Randall" <TR3driver@ca.rr.com>
Date: Thu, 25 Dec 2014 18:35:49 -0800
Cc: <triumphs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
Thread-index: AdAgq6+FS1zUYL39SR6r1VS3VNZ2uAAB1o1g
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What type of threads are used on this compressor?  If they are Acme threads you 
cannot use a "Jam Nut" since that thread is designed
to NOT lock up.   
 

Try it sometime.  I think you'll find that they do lock, just not as tightly as 
vee threads.  With enough torque, they still lock
pretty tight.
 
If you want a permanent joint that won't turn even under extreme torque, drill 
a hole lengthwise through the threads and drive a
hardened pin into the hole.  I used that on a hub puller I built with 1" ACME 
rod (using a second nut to lock the first one during
the drilling process), and the nut/rod joint took all the torque I was able to 
throw at it, even with a 1" drive impact wrench and
standing on the end of a 6' section of pipe.  It literally crushed the rod 
lengthwise, but the nut never moved on the rod.
 
 -- Randall 

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align=3Dleft><FONT=20
  color=3Dblack size=3D3 face=3D"Arial, Helvetica, sans-serif"><FONT =
size=3D4>What type=20
  of threads are used on this compressor?&nbsp; If they are Acme threads =
you=20
  cannot use a "Jam Nut" </FONT><FONT size=3D3><FONT size=3D4>since that =
thread is=20
  designed to NOT lock up.&nbsp;&nbsp;<SPAN =
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  color=3D#0000ff =
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face=3D"Arial, Helvetica, sans-serif"><FONT size=3D3><FONT =
size=3D4><SPAN=20
class=3D849122402-26122014>Try it sometime.&nbsp; I think you'll find =
that they do=20
lock, just not as tightly as vee threads.&nbsp; With enough torque, they =
still=20
lock pretty =
tight.</SPAN></FONT></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV dir=3Dltr lang=3Den-us class=3DOutlookMessageHeader =
align=3Dleft><FONT=20
face=3DArial><FONT size=3D2><FONT color=3D#0000ff><FONT color=3Dblack =
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face=3D"Arial, Helvetica, sans-serif"><FONT size=3D3><FONT =
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class=3D849122402-26122014></SPAN></FONT></FONT></FONT></FONT></FONT></FO=
NT>&nbsp;</DIV>
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face=3DArial><FONT size=3D2><FONT color=3D#0000ff><FONT color=3Dblack =
size=3D3=20
face=3D"Arial, Helvetica, sans-serif"><FONT size=3D3><FONT =
size=3D4><SPAN=20
class=3D849122402-26122014>If you want a permanent joint that won't turn =
even=20
under extreme torque, drill a hole lengthwise through the threads and =
drive a=20
hardened&nbsp;pin into the&nbsp;hole.&nbsp; I used that on a hub puller =
I built=20
with 1" ACME rod (using a second nut to lock the first one during the =
drilling=20
process), and the nut/rod joint took all the torque I was able to throw =
at it,=20
even with a 1" drive impact wrench and standing on the end of a 6' =
section of=20
pipe.&nbsp; It literally crushed the rod lengthwise, but the nut never =
moved on=20
the rod.</SPAN></FONT></FONT></FONT></FONT></FONT></FONT></DIV>
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<DIV dir=3Dltr align=3Dleft><FONT face=3DArial><FONT size=3D2><SPAN=20
class=3D849122402-26122014>&nbsp;</SPAN>-- Randall=20
</FONT></FONT></SPAN></FONT></FONT></FONT></FONT></FONT></DIV></DIV></BOD=
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