I have a couple of questions for you guys that have good ears for a Carrera engine. This is my first Carrera and I haven't compared the sounds my engine makes to others so I just want to know if it sounds right.
My first gripe is the fan noise that becomes very apparent around 1:12 into the video. This sound drives me nuts sometimes. It's the howling sound of what I think is the alternator fan. If os, is there anyway to quiet it down or is this normal? What creates this sound? Is it the air passing over the cooling fins? It's most apparent at about 2400RPMS
The second sound I thought it was the valves, it's a clacketing sound coming from the right side of the engine. It seems to quiet down once the engine has warmed up a bit. Very apparent when the engine is cold.
Here's the link to the video, listen carefully
http://www.ferradasphotography.com/pcar/carrera.wmv