Date: Wed, 13 Apr 2011 21:00:19 -0700
Reply-To: neil n <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil n <musomuso@GMAIL.COM>
Subject: Re: Upper Control Arm Nut Grade Matter?
In-Reply-To: <BAY152-ds206FB3C051B3697F6608D0A0AD0@phx.gbl>
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Thanks Dennis. I appreciate the warnings and info.
"(prevailing torque) lock nut. " Google image searching that term
shows different kinds of nuts. http://tinyurl.com/3w5m6c2
Is that upper control arm nut the same type as nut used to hold the
steering rack to frame?
I didn't see any warning in Bentley stating "always replace" on P 40.20 or 40.5
The nut that was there, had what looked like a 1 or 7 and a small logo
opposite it. The replacement nut of same pitch/diameter, had a 10
stamped on it with the same logo. I cleaned up the mystery nut some
more, smeared some grease on it and a 10 appeared. It appears to be a
grade 10 nut. The washer on both sides of vehicle are the same (thick)
I took great care to inspect the *slight* thread damage then using the
good nut, carefully worked it in/out with penetrating fluid, cleaning
as I went. (overkill really). There was not metal debris and no
abnormal play felt laterally or end to end when comparing to the long
bolt from other side.
On the note of different thickness eccentric washers, it seems that
only applies to Syncro's. Of which I doubt I"ll ever own. <grin>
My understanding is that the 2wd control arm can compress enough to
take up any slack. The Syncro arm won't. (being more stout)
I'm ready to be corrected. <grin>
Neil.
On Wed, Apr 13, 2011 at 7:49 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> When it comes to hardware nothing needs more attention to detail than
> suspension parts. Damaged threaded parts should be replaced. The nut and
> washer is special.
> The nut is a class 10.9 all metal (prevailing torque) lock nut. Also note
> the eccentric washers are available in different thicknesses.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> neil n
> Sent: Wednesday, April 13, 2011 1:40 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Upper Control Arm Nut Grade Matter?
>
> Hi all.
>
> Over kill, but want to make sure.
>
> Am replacing upper control arm bushings.
>
> Nut on driver side shaft was tortured by PO. Was able to save threads on
> shaft, ("whew") with another nut having cleaner threads, penetrating oil,
> careful back/forth.
>
> I don't know if it's the same grade. Nut likely came off a Vanagon (from ?)
> Stamps are hard to see.
>
> Does the nut grade matter much in this application? I suspect not, but
> double checking.
>
> Thanks,
>
> Neil.
>
> --
> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
>
> http://tubaneil.googlepages.com/
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engine
> s
>
>
--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"
http://tubaneil.googlepages.com/
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
