i have this truck apart and am in the of putting it back together to see if i can pinpoint the noise a little better. any ideas would be helpful thanks

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Timing belt tearing apart and flapping around ?? Inside the valve cover i think theres a sheet metal bracket , maybe thats hanging down and hitting the cam.

 

Thanks for the help. But no the timing belt is fine, took the valve covers off as well. Got most of it back together toady except for timing cover and cooling system . It's starting up but now I have a fuel line leaking so it only runs for a second then dies . Didn't hear the noise thought when it was running for a couple seconds. Maybe timing cover??? No belts are on the motor either ( except timing)