Prop stick - Yamaha G1

[Terry L Jack]

Hi Newton,

Thank you for the advise! I appreciate it.

Terry Jack


> Hello Jack,
> 
> First of all, I would try to determine WHY this is
> happening.  I have never, in 46 years, encountered a Yamaha
> with stripped out lid prop screws.  This is weird, strange
> and unusual enough that you should know so you can prepare
> for a repeat or re-educate someone on the limits of the
> arrangement.
> 
> Second, dowels have end grain at the ends and end grain is
> the weakest orientation for a screw.  If you do drill out
> the holes you will need to put in plugs cut from wood
> perpendicular to the grow rings.  That is the strongest
> orientation.
> 
> An easier, and super strong, solution is to spray the screws
> with a mold release or Elmers GlideAll or McLube's clear
> then work some thick CA into the holes and twist the screw
> into the wood as far as it will need to go when it is
> holding the hinge in place.  Allow to set overnight then
> come back and use a hard impact twist on the screw to break
> the bond with the glue.  Do this for all three screw holes
> and you will have a firm mount for the hinge.  I have used
> piano wire to work the CA into the hole on vertical
> surfaces.  The glue penetrates the wood quite deeply and
> forms new threads that are quite strong.
> 
> Newton
>