I am having an odd occurance in my engine. I think it has something to do with the belt and/or pulleys, but I'm not sure.
There is a vibration when the engine rpms go up. It's not something that happens because of movement, it's definitely tied to engine rpms, because it happens even when I'm sitting still and reving the engine.
When I had my wife rev the engine for me I noticed the drive belt would wiggle a bunch at the higher rpms. I just finished adjusting it, but this was happening before that. I adjusted it because it is relatively new and I noticed it was starting to get pretty loose.
Perhaps I adjusted it imporperly or it's not tight enough? Too tight? Honestly, this is the first belt I've put on this engine, so this is the first time I've had to deal with this.
Also, this engine is newly rebuilt, so I highly doubt it's anything internal.
Has anyone had this kind of vibration problem before?
1972 Super Beetle