Vbdiagram
Meg writes –

Here’s a guide on how to make a basic vibration meter that might be helpful for people working on cars/machines – Commercial vibration meters will typically cost $1000+, and may be more than your average hobbyist needs. The parts cost of this project is $85, and it gives you a basic vibration meter that could be used for comparative testing.”Link.

Img413 1552
From the pages of MAKE:
Mod Your Rod: a collection of car hacks and mods – MAKE 03. Subscribers–read this article now in your digital edition or get MAKE 03.