Two types of measurements can be made with this meter: direct measurements at individual points and measurements calculated on a horizontal plane (baseline), parallel to the bottom of the body. Single point measurements are usually made on engine compartment steering and suspension parts and simply require vertical gauges to be set evenly.
When measuring on a horizontal plane, the vertical pointers must be set as indicated for each measured point.
Gauge holes are measured to the center of the holes and flush with the adjacent metal surface, unless otherwise specified. To confirm the dimensional accuracy of the underbody, it is recommended to check the diagonal dimensions to the body cross member on both sides.
Floor Panel Insulators
The floor panel insulators are designed to withstand the high temperature of the floor panel that occurs when using a catalytic converter in the exhaust system. Therefore, when repairing a car, it is important that the removed or disturbed insulators are installed back in the original sequence and in their original places. Also, if the insulator needs to be replaced, use only the insulating materials specified for that location on the floor panel.
When repairing or replacing internal insulators, observe the following instructions.
- Install the insulators in the original location and in the original sequence. Join pieces end-to-end to avoid gaps or overlap.
- If it is necessary to replace the insulator, use only the specified insulating materials.
- Use the original part to determine the amount of replacement material and also as a template for cutting and fitting a new piece on the floor panel.
- When installing the insulator, do not enlarge cutouts or holes that are used to attach internal parts such as the dashboard or floor console.
- Route body cross member wiring for interior parts over floor panel insulators. Clamp it in its original position.
- Do not apply spray-on noise absorbers or finishing adhesives to the top of the floor panel in the area immediately above the catalytic converter or muffler.
Any repair or replacement of the insulator must be the same thickness, size, and location that was originally present in the vehicle.