front upper wishbone query!
 

Hi all, looked at putting the front upper suspension together and noticed that with the 2mm packer underneath the bush tubes the 19mm wishbone tubes are way off being centred on bush tubes. How have you guys tackled this?

cheers
tony

You've completely lost me here? Why are you packing out the bushes? They should fit into the wishbone end tubes without any packing? You got a photo, or a reference to any page in the manual or something?

Upper front wishbones
 

The book jigs do indeed show a 2mmspacer under the bush tubes

This is shown on page 60 fig 5.7 & again on page 62 fig 5.10 ( First edition of the book )

I made my own jig up to best suit the drawing on page 61, this clearly shows the 19mm tube sharing the same centreline as the bush tube !!

Lets round the bush tube up to 34mm ( 33.7mm ) rather than mess about with silly fractions of a mm ;)

The bush tube centre will be 17mm

The centre of the 19mm tube will be 9.5 mm.

It can be seen that to keep both tubes aligned centraly a 7.5 mm spacer placed under the 19mm tube would be needed to keep all on a level plane as per drawing.

If you want to be a perfectionist a spacer plate of 7.35mm .

I have no idea as to why the 2mm spacer under the bush tubes is shown. :confused:

The 8mm spacer plate already brings the 19mm tube .5mm above centre. !!

As said. I made my own jig to suit the drawing & am happy that the upper wishbones are to the book spec.

I hope all of this double dutch makes some sense :)

cheers bonzo,
I was about to remove packer but I thought I would check first. Cheers for reply.

Although it is nice to aim for perfection, I think the critical measurements are as follows

Overall length. Width of the outside edges of the bush tubes & angle of the threadded boss

Just add a good quality weld & the jobs a good un :) :)

so true :D ;)

andy

Take a look at figure 5.9 page 61.

The right hand drawing, side view, the 2mm dimension is shown. The lower corner of the threaded boss is 2mm below the bottom of the bush tube.

As has been said the important things are to place the threaded boss and the bush tubes correctly, you can think of the wishbone tubes as "connectors", in place to hold the threaded bush and bush tubes in the correct orientaion.

It's not all guess work you know :D :D

Cheers

Chris :)