Sorry I thought the thread was about upper a arm bolts ?
Mike Kerr
Roadster Restoration
3730 Todrob LN.
Placerville CA. 95667
Ph.# 530-644-6777
Fax# 530-644-7252
E-mail: mikekerr@innercite.com
Web page : http://www.innercite.com/~wolfgang
Visa & master card
-----Original Message-----
From: Marc Sayer <msayer1@concentric.net>
Cc: ROADSTER <datsun-roadsters@autox.team.net>
Date: Thursday, May 27, 1999 8:32 PM
Subject: Re: An upper control arm suspension question.
>Mike Kerr wrote:
>>
>> wait again mark there is very little shear load on the bolts that hold
the
>> upper spindle to the car frame , since the upper a arm pivots on the
shaft,
>> and the geometry of the pivot pt to the action of the a arm only applies
>> very little shear the biggest load is tension on the bolts. Now on the
>> bottom A arm where the attaching bolts for the shaft are 90 deg. to the
>> applied force on the shaft the bolts their would have a greater shear
load
>> but not the top
>>
>> also the blot used should be a 7/16 fine thread not a metric
>
>I was not addressing a specific bolt either in terms of application or
>in size/thread pitch. What I was trying to point out is that bolts are
>built for specific purposes and simply going to an alternate grade
>fastener, even when it is a so-called higher grade, is not always a good
>idea. I guess what I'm saying is that there is a lot more to the science
>of fasteners than just getting the highest numerical grade available.
>
>--
>Marc Sayer
>Editor/Publisher
>Z Car & Classic Datsun Magazine
>http://zcarmag.com
>Voice 541-726-6001
>Fax 541-746-0863/726-6001
>
|