Wow, thats actually a neat trick, even though its sounds redneckish. i may do that just to try it out!entropy said:I once had an 81 VW Vanagon (yes, I know...) that had a severe knock. I used a wooden broom handle, unscrewed the broom, placed one end at my ear (touching my ear) and moved the other end around on the block, until I pinpointed the source of the noise. The vibration will travel through the wood to your ear. It is a bit loud, but very useful for diagnosing problems or just listening to the valvetrain.
By the way, that Vanagon, probably hit 1/4 mile before 60mph!