I'm probably showing my ignorance here, but I have a rather loud rapping sound in my 63 Riv that I can't locate. Here are the observations in bullet points.
Loud, rather heavy rapping sound which speeds up and slows down with the engine revolutions
Sound occurs when the car is in motion
Sound continues when drifting in neutral,
Sound is intermittent, but more prominent in winter than summer
Sound slows and ceases when coming to a stop.
Now, here's the kicker . . . the sound is coming from the right rear, above and behind the right rear tire.
As stated above, the sound normally stops when the car is not in motion, however, today something different happened. I put the front end up on high ramps and the sound occurred while the car was up at an angle, even though it was stationary. This gave me the ability to more closely inspect where the noise was coming from. It was very prominent when listening through the trunk. To investigate further, I raised the right rear and took off the tire. The sound was coming from above and behind the wheel. However, the sound is more prominent when listening through the trunk.
For the life of me, I can't figure out what would be causing a rapping sound in that area, rapping in sync with the engine, even when the car is stationary.
Any ideas out there??
Tom