Engine knocking noise?

[bmark0610]

Hard to say, but I am leaning towards either the small or big end of crank. That's a loud thud. It wouldn't be so pronounced if it were valves or timing chain. But I've been wrong many times before.

Have you adjusted the valves yet?

No I havent. I guess I will have to do that.

I found a youtube link... Doesnt seem too difficult. https://youtu.be/IHeIXalJ9N8

Hopefully it comes apart without a struggle...

I'm praying the noise is related to something easy.

[NETRA3]

I think it might be time to dig into the top end......It could be a combination of upper or lower end rod bearings accompanied by piston slap.....All indicators of wear and tear. Some guys use a stethoscope to pinpoint the noise. I've also used a pry bar or a long screwdriver place on the motor while having the opposite end touching your ear.....This method is cheapest if you go the Mc gyver route to isolate the noise.