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April 7, 2011

DNX408 Brake Piston Alignment

Filed under: News,Tricks and Tips — Tags: — Stuart @ 11:35 am
tip-408-pistonsetup1 The rear half of the centre differential mount on the DNX408 buggy is constructed from two sections of  machined alloy; these are screwed together by the user to complete the assembly.


The steel brake piston needs to slide through the hole in in the mount smoothly – the problem is that without perfect alignment between the two halves, when screwed together, the action can be stiff and affect the braking performance of the buggy.

150wideTTT-solidgreyTo acheive perfect alignment take the two halves, and with a small amount of threadlock on each screw very loosely join the two parts together.  Slide the piston into inside face next to the screw heads and hold it flat against the edge.  Making sure not to tip the assembly forward at all, slowly tighten each screw.

tip-408-pistonsetup3x Above Left: Holding the piston in place whilst joining the two halves.  Above Right: The completed assembly – both parts aligned.

When fully tightened you should be able to drop the piston into one side and have it fall out under its own weight freely from the other side – this will give the  best braking performance.


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