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Message: <blockquote data-quote="nilespf" data-source="post: 134347" data-attributes="member: 24791">Hello all, Just purchased a Bobcat 873 with the Deutz 1011F engine, oil cooled, turbo diesel. Began the effort to replace filters and oil along with the timing belt. Spent time trying to find the tension specs for the belt. Finally gave up. As you know, nothing exists from Bobcat or Deutz as to what the timing belt tension is set to. After a lot of analysis I backed into what the numbers mean when we use the infamous Deutz tension meter. Bottom line is the meter measures force (in Newtons) used in deflecting the belt. The amount of deflection corresponds to a predetermined belt tension based upon the span distance and bending modulus of the belt. Sounds like a bunch of jargon but the Deutz meter is nothing but a customized device used in the "force deflection" method of measuring belt tension. Manufacturers usually provide the deflection force and we have to measure the deflection, force and determine the span length. This is what I have come up with:Pretension = .73 lbf @ .166" deflection or 3.25 N @ 2.7 mm deflectionFinal distrubuted (locked cam) tension = 1.82 lbf or 8 N corresponding to a belt tension of 25 lbf.There is a bunch of background to these numbers so post away with questions.</blockquote>