At 07:53 PM 1/14/01 -0800, you wrote:
>Well, my Tiger is about to be put on the rotisserie and I need to try to
>balance it as well as possible the first time. It is stripped down to the
>bare body (650 lb).
>
>I have the rear mounted by the rear bumper mounts.
>I have the front mounted by the crossmember mounts, through the grille and
>above the unibody frame (not below, where the crossmember normally mounts).
>
>Here's the question for anyone who has done this:
>
>Where is the center of gravity on the tiger? It appears to me that it would
>be just below the side stripe on the Mk1, but I'd like to nail it first
>time.
>
>Thanks in advance of your replies.
>
>chuck
We have found that the center of gravity (CG) is about 2.5 to 3 inches
above the bumper mounting elevation. It is typically not a critical
dimension because you will want to "pin" the rotational device to maintain
several positions for working on and in the car. I would advise you to
make a mount that includes bars that penetrate the jacking receptacles to
prevent the mount from applying bending loads to the nuts in the
frame. These nuts are also marginal in themselves and it is advisable to
fabricate and install pieces of threaded bar stock into the frame to
accept the mounts, and later the bumpers.
I would further advise you to tie the front and rear rotisserie supports
together so that they are stable as you roll the assembly around on the
floor. Running the support casters over small nuts, scraps, floor joints
and similar surface irregularities can otherwise lead to unexpected
collapse. Properly connected the Tiger shell is very transportable and can
be successfully loaded and unloaded from car trailers without incident.
Tom Hall
|