My engine started knocking not too long ago. I'm going to have the spark plugs and timing chain looked at to see if they are the culprits. But, I saw someone mentioning adjusting the carb as well. How do you do that? I didn't know you could.

 

do you mean pinging, knocking or ticking. all seperate culprits involved.

carb/plugs = pinging

bearings = knocking

ticking = valves.

a video would help someone here try to diagnose.

search google for aisin carburetor adjustments. You will find your info.

 

I would say pinging. The sound is very light pitched, like a plastic baby rattle, but I can definitely hear it loud and clear. It's definitely tied to the engine, as it gets faster as I step on the gas, and when I let off the gas, it generally goes away. BUT....I suppose it could be the valves.....I didn't think of that. I have a 3rd gen MR2 Spyder that has ticking valves.....they sound similar, but this sounds more like a rattle than a tick.

Can't put a video up yet because the exhaust is loud. The exhaust sound would drown it. When I get the exhaust fixed, I will upload a video.