AW: SER1 Suspension - shackles, bushes and bolts.....

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The two shackle plates have to be bolted tightly against the steel centre of
the bush otherwise the thing won't work. Before doing so though, after
tightening the U-bolts, you have to position the springs roughly at mid
travel. This ensures the correct preloading of the bushes. The rubber
filling between the two steel tubes acts as a spring in itself. You can
easily achieve this by wrapping a chain around the chassis and a jack
underneath the u-bolt plate. Working the jack the leaf spring will be
compressed.

As to your problem of the bolt not having enough thread, you can use a
washer but make sure it is one of high tensile or even better annealed
steel. The normal washers to be used with bolts are too soft and may get
worked up.

Ulrico 

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Von: series1-host@xxxxxxxxx.xxx [mailto:series1-host@xxxxxxxxx.xxx] Im
Auftrag von Ian Stuart
Gesendet: Mittwoch, 14. September 2005 17:09
An: series1@xxxxxxxxx.xxx
Betreff: Re: SER1 Suspension - shackles, bushes and bolts.....

Mark Strangways wrote:
> Hi All,
> 
> Currently rebuilding my Series One onto a new Marsland chassis, with
Parabolic springs. All bushes are normal not polybush etc. I have some
questions on suspension though.....
> 
> Would I be correct in saying that the shackle plates should be bolted
tightly so they are up against the steel centre of the bush, and that this
is how the bushes work? 
My understanding is that the rubber bushes (unlike the poly-bushes) use the
flex in the rubber.

I would also say that the you don't want the spring to rattle between the
shackle-plates, and this is achieved by tightening the plates against the
central steel sleeve (both at the spring end and on the chassis end)

        -- 
        
  Ian Stuart: Code Gorilla, Perl Laghu, & Land Rover fettler
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