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4.1 Chassis Particulars

Chassis Rubbers

Rubber strips are glued to the chassis using contact adhesive (photo 1). See the Chassis Diagrams for the area covered.

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A wallpaper roller helps to press down the rubber once glued (photo 2). Notice the holes cut in the rubber (slightly oversize) in line with the bolt holes. A sharpened piece of 15mm copper tube was used for these.

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Fitting Torque Braces

Two torque braces are supplied which mount between the chassis (cross-member fixing bolts) and the footwell front (photo 3). When positioning these, it must be remembered that the rear mounting plates should be faced with chassis rubber. A hole needed to be drilled in each brace forward mounting plate.

To find the correct centre, I first removed the 2 rearmost cross member mounting bolts and, with the brace and rubber in position, marked the chassis where the front end of the brace came to. I then carefully measured from here to the centre of the mounting hole in the chassis (with the brace removed) and transferred that measurement to the brace plate.

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Chassis Number

One of the requirements of the SVA test is that the chassis number is permanently displayed on a fixed visible part of the chassis. The chassis number is provided by NG when supplying the chassis and this can be punched onto the top of a brace (photo 4). I found that a piece of wood, cramped to the brace and marked at 1/4" intervals helped to align the lettering.

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Rubber Sleeve Inserts

Where the electrical cable, fuel pipe and brake pipes pass through the cross members of the chassis, something is needed to seal the holes and act as a sleeve. It is recommended that 50mm lengths of 1/2" heater hose is used but I found that these were extremely tight to fit.

So I cut the hose a little longer than recommended (about 65mm), made a slit down the length and took a slither out. I then cut the corners off one end to form a leading edge to feed through the chassis holes (photo 5). They can now be slid over the pipe or cable and eased into the holes, still providing a tight fit. The slit is best set at the top so that the hose acts as a gutter to keep any water from entering the chassis.

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