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TORX, Allen, and 12 Point was: CV Bolt Type/Size -
I've had ugly experience with these. My VR6 flywheel bolts are single
use 10mm XZN heads. The damn Lisle bits stripped and in the processes
stripped the heads on several of the bolts when I was torquing new
ones. Those bolts are very hard, a real treat to try drilling. What a
mess. Then I tried the K-D bits, very similar. Stripped even easier.
I found the Snap-On truck and bought the 8, 10 and 12mm bits for about
$20 apiece. I guess some cars have 6mm somewhere on them too. This is
one place you shouldn't cheap out on. The XZN bits are the only
Snap-On tools I own, and I have almost $10,000 worth of tools. Snap-On
calls them triple-square.
Now, IIRC, those flywheel bolts I'm talking about were something like
65 ft/lbs and another 1/4 turn or something, like head bolts, so there
was a lot of pressure. A lot more than CV flange bolts, you could
probably get away with the cheap stuff, but I'm not taking chances
myself..
John Gates
--
'85 Scirocco, Flash Silver
'97 Jetta GLX, Sequoia Green
-----Original Message-----
From: T Berk <tberk@sbcglobal.net>
To: list >> Scirocco email List <scirocco-l@scirocco.org>
Sent: Thu, 14 Apr 2005 19:37:23 -0700
Subject: TORX, Allen, and 12 Point was: CV Bolt Type/Size -
Ron Pieper wrote:
> --- T Berk <tberk@sbcglobal.net> wrote:
> >> Don't try and use a TORX, it'll strip. (Some older Rabbits
actually >>used an Allen bolt instead of the later 12 point fastener.)
> > > Actually, I have a set of TORX bolts in my car, I believe I
stripped them from some ancient 020
> 4-speed some years ago. I saved them for a special occassion, and now
Victor Jr. is equipped with
> them. Adds 0.005456 HP.
> > HTH, or is at least very mildly informational.
> > Ron
>
Yeah,
Actually all three have been in use on VWs, (there is something known
as SPLINE but I question if they are actually the twelve point or
triple square, don't 'tink so) .
If you have the correct tools and all other things being equal I
believe the Allens are the easiest to strip, but I'm at a toss up over
the other two- one being better over the other.
btw- I found the four pack set from Lisle I was looking for:
<http://www.lislecorp.com/tool_detail.cfm?detail=1080>
Thats where I mate one with a 1/2" deep socket as a permanent pair.
TBerk
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