Engine rattling sound

[jonathan]

Hello, i have a lada samara 1.3 carbureted engine, i always take car of it and serviced with quality oils, it only has 30k miles from new. However recently has developed an engine rattle under load or when idle and blipping the throttle fast and hard.

I dont know if its by coincidence but noise started happening after i changed the water pump, i only changed the pump and the timing belt and tensioner were replaced about 4k miles ago only. Someone told me that it might be an exhaust leak, no its not there arent any i checked. Sound is definitely coming from the top cover of the engine. If it were the valves making the noise it would make noise all the time no?

https://youtube.com/shorts/VdPum91ydAU?feature=share

This is a video of the noise, not very clear but yoy can hear a small rattle noise when i blip the throttle

Topic

[college man]

see if this helps?

Diagnosing Noises in Your Car

[Author]

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