it makes the sound sometimes when i just turned off the car and had to turn it back on again. the sound is like when your in a high gear and you forgot to put it on neutral when going to a stop and your about to stall and you get this chattering sound. anyone know what could be causing this sound?

 

bump

 

valve adjustment

 

cant be, i did my valves not too long ago. the sound im hearing sounds like the crank struggling.