From digest.v7.n1264 Sun Mar 8 16:55:53 1998
From: "Steve D'Gerolamo" <steved3_at_idt.net>
Date: Sun, 08 Mar 1998 11:40:13 -0500
Subject: E36 Chassis Metal Fatigue & Jackplates
Much has been said lately about E36 3 series weld and metal fatigue,
notably with regard to subframe mounts (see
http://www.njbmwcca.org/scrap.htm). The chassis jack insert holes can also
experience fatigue (or shift) due to excess loads. I want to remind people
that have purchased E36 jackplates that this tool is intended to replicate
the factory jack for the lifting of one side only of the vehicle.
Please note the warning on my web site: "Warning- do not work under
any vehicle supported by a jack plate only-jack stands must be used. Do not
use more than one jack plate at a time or attempt to lift the front or rear
half of the vehicle with this tool-BMW did not engineer the metal inserts in
the rocker panel to support 50% or more of the weight of the vehicle.
Excessive loads may cause chassis metal fatigue (the chassis insert can
shift upward) or failure resulting in severe injury to the person(s) using
this tool and/or damage to the vehicle."
I received a call from an upset (local) customer this morning who
has used the jackplate to lift the entire rear of the car by lifting one
side first, placing the vehicle on a stand, and proceeding to the other side
to lift for placement of the second stand. This excess load has caused the
hole (chassis insert) to shift upward and he can no longer put the filler
plug back into the hole.
If you've purchased one of these tools, PLEASE use it correctly (see
above). If you're looking to lift the entire front or rear of the car for
service procedures, a jackplate is not the solution. Buy a low rise lift or
carefully use a quality floor jack and a means of distributing the load to
lift the car.
I made the jackplate for my own use and had to have a run of 125
pieces to justify the cost. I've accomplished this and will no longer
manufacture this tool (at least not in 1998). The price of the remaining
pieces will be increased to $125.00 and I will buy back (between now and May
1, 1998) these jackplates from anyone not satisfied with their quality. SD
Steve D'Gerolamo - The Ultimate Garage
201-262-0412 / steved3_at_idt.net / http://www.ultimategarage.com
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