Hello everyone. I have Porsche 911sc 1979 sportomatic.
I’ve noticed a knocking sound coming from my engine when the RPMs are low. It doesn’t seem to happen at higher speeds, but at revs, the noise is quite noticeable.
Does anyone have an idea of what could be causing this?
Here’s a link to a video where you can hear the sound:
[
https://youtu.be/zuZhG0kmnw8?si=afWaFWJs27MMgn60]
Thanks in advance for any help!