ok i got a sound that sounds like maybe pistons slap but it doesn't do it when you first fire it up. when it first gets cranked up in the morning it is smooth well beside the cam but no noises. after about 30-45 seconds sometime a minute of it running it will start making this taping kinda noise i guess then when it get to operating temp it goes away for the most part you can still kinda hear it if you listen close enough. so what gives is this normal piston slap or something else? i just don't recall this noise when i first droped the engine in. then i went on a trip to arkansas and i guess i burnt some oil and it got a ittle low and it started tapping after some lucas oil it stoped. then when i got back up to maine where it was hella cold it started doing this.



video here is the video the first squeek you hear is my belt not the eng. the rattles start at about 21 second mark.

 

WOW, that does sound wierd, and that belt squeel is enough to drive me crazzzzzy. I'll have to listen to it a few more times before I make my guess.

 

spun bearing? May be an answer to some your "dog" questions.

 

rod knock

 

it goes away after warm up though. and i have pulled every spark plug wire one by one and it doesn't change so i don't think its a rod.