New car questions. Knocking Noise?

[harbs13]

Hey guys i just pick up a 89 240 with a ka24de had several questions. There is aloud clacking noise that i hear at about 3000 rpms. if i shift the car before that i really cant hear the noise. Does anyone have any suggestions to what can be causing the noise.

[ThatGuy]

Depends where the noise is coming from.
How many miles does the engine have?

Possibly the Timing Chain, they always make noise.

I'm moving this to Tech Talk.

[ZX88]

probably timming chain the sound usually kicks in around 3k rpms. are the guides removed?