TwinTurbo.NET: Nissan 300ZX forum - Honestly, the intake dowel pins are only for alignment...
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Subject Honestly, the intake dowel pins are only for alignment...
     
Posted by LitlElvis on June 03, 2016 at 11:58 PM
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In Reply To Bought another Z...and new plans for my original one... posted by Gino Z32 on June 02, 2016 at 09:02 PM
     
Message they do not carry any load when the bolt holding the drive sprocket is properly preloaded. Even if the pin were undersized, the friction created between the cam/JWT adapter/sprocket flat surfaces is what carries 100% of the load in a fastened joint such as this.

IMO the only way a joint fails like this is if the bolt lost its preload by either coming loose or deformation from over-loading its tensile properties.

     
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