In a recent thread on TR3A overheating it was noted that some grilles may have smaller gaps between the "bars" of the grille and widening them would provide more air flow through the grille. I would like to widen the gaps on my TR3A grille even though I believe it may be a factory grille. I was wondering if anyone had widened theirs, and if there is some tool that would work the best. I'm leery of just using a plier with a narrow blade since that could make the metal quite wavy. Also, what is the best method for widening the gaps? I assume it would be best to do the work from the back side of the grille, is that correct? What method should I use to keep the corners of the gaps rounded, etc.? Are there any hints for how to do this and not make a mess of the grille? Thanks!
Regards,
Bob
Regards,
Bob