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CARRILLO YAMAHA REPLACEMENT BOLT (1 PC.)


$51.95  $49.35
Sale: 5% off

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The fastener system of a high performance connecting rod is most likely the most critical unit of the assembly. As a result it is important that the fastener is installed per instructions and with recommended lube. CP-Carrillo has close to fifty years of experience of working with what have become the most recognized fasteners in the connecting rod industry. Much of this has come from experience which has been tested and validated repeatedly.

Each CP-Carrillo fastener design is based on a known yield load. During linear stretch of the bolt this load should never be reached. The recommended stretch value is 80% of yield load calculated in a tension – torque diagram.

Torque figures are the more commonly used method for tightening fasteners, however this is not CP-Carrillo’s preferred method. Torque is affected by numerous variables, all of which can alter the true preload figure you are trying to attain. Particularly, the lube utilized, the condition of the threads, the spot face, dimensional integrity, as well as other variables have an effect. Nearly all of these elements are alleviated if the assembler uses a “stretch” method. CP-Carrillo found that the consistency of high quality fasteners offers the least deviation when using the stretch method, with the result that the fastener will exhibit proper preload using designated stretch.

CP-Carrillo pays close attention to the above mentioned variables. Dimensional integrity is foremost -- the qualities of the fasteners have set the standard in the industry and they have continually looked at improved lubrication. The results of this continued effort is a new, improved lubrication for the fasteners. This is still molybdenum based lubrication grease, but with enhanced properties. This product offers an improved clamp load repeatability, greater resistance to high pressure and temperature (range -22F to 1200F), and no oil contamination. The coefficient of friction stays unchanged, even after several bolt re-tightening and loosening processes.

The implementation of this new lube is simply another example of CP-Carrillo’s efforts to continue to offer the finest connecting rod in the industry.

This part is to be used in conjunction with:

  • Model: R/ BLT-CARR9
  • Manufactured by: Riva Motor sports

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