Engine Help!!

[94Jettameowpsst]

Question: Is it absolutely necessary to get machine work to your block/crank etc. when you rebuild your motor? I am certain my rods are knockin annd im about to spin a bearing :thumbdown . I know for sure its not lifter tick cause its coming from the bottom of the motor and its audible at every rpm. Just curious about how to do this, i havent really "built" a motor but i know im capable of the task plus my uncle's a mechanic and we're both meticulous about everything so....any input would be helpful.

Edit: btw i havent talked to my uncle about any of this yet

 

[TsiTalon9587]

You can't really rebuild an engine without doing some type of machine work. Your Uncle should know this. You will at least have to re-hone your cylinders to get rid of the glaze that's there, as well as produce a new cross-hatch so the new rings are able to seat correctly. If your positive that your knocking, I would drop the pan, and see you can feel any movement in the rods, for starters. Good luck.