AutoZone 1966 Saab 96 0.8L 1BL 3 Carb 3cyl | Repair Guides | General Information & Maintenance | Fasteners, Measurements And Conversions | Standard And Metric Measurements | AutoZone.com

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    Ford Thunderbird/Cougar 1983-1997 Repair Guide

    Standard and Metric Measurements

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    See Figures 1 and 2



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    Fig. Fig. 1: Determining bolt strength of metric fasteners-NOTE: this is a typical bolt marking system, but there is not a worldwide standard



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    Fig. Fig. 2: Standard bolt torque for metric fasteners-WARNING: use only as a guide

    Throughout this information, specifications are given to help you determine the condition of various components on your vehicle, or to assist you in their installation. Some of the most common measurements include length (in. or cm/mm), torque (ft. lbs., inch lbs. or Nm) and pressure (psi, in. Hg, kPa or mm Hg). In most cases, we strive to provide the proper measurement as determined by the manufacturer's engineers.

    Though, in some cases, that value may not be conveniently measured with what is available in your toolbox. Luckily, many of the measuring devices which are available today will have two scales so the Standard or Metric measurements may easily be taken. If any of the various measuring tools which are available to you do not contain the same scale as listed in the specifications, use the accompanying conversion factors to determine the proper value.

    The conversion factor chart is used by taking the given specification and multiplying it by the necessary conversion factor. For instance, looking at the first line, if you have a measurement in inches such as "free-play should be 2 in.'' but your ruler reads only in millimeters, multiply 2 in. by the conversion factor of 25.4 to get the metric equivalent of 50.8mm. Likewise, if the specification was given only in a Metric measurement, for example in Newton Meters (Nm), then look at the center column first. If the measurement is 100 Nm, multiply it by the conversion factor of 0.738 to get 73.8 ft. lbs.

     
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