[pbanders]

I see we've got some brave souls doing some tach hacks, so while you're at it, can any of you comment on the cause behind the famous 914 "bouncing tach" problem. What I'm talking about is the overshoot/undershoot problem you see on a lot of 914 tachs (mine, for example) when rapidly changing engine speed. I talked to PA Speedo, they told me that it was due to a "broken mechanical damper" - just guessing, is this the classic aluminum tab/permanent magnet gap thing? Is it obvious what's shot? Is it repairable or does it need new parts (presumably, available only to places like PAS and NHS)? Thanks....