841 engine noise

i have an 841 powermaster that has a engine noise that is not necessarily a knock. if put the engine under a load by lifting the 3-point the noise goes away till done loading the engine. i have had the head off and replaced which was cracked. i have removed the belt and noise still present it is not burning oil and runs and drives fine. any ideas?
 
Is the engine noisy when you start it cold? If it clatters before it gets oiled up you are looking at rod bearings.
 
(quoted from post at 16:51:42 11/24/13) Is the engine noisy when you start it cold? If it clatters before it gets oiled up you are looking at rod bearings.

it doesn't seem any more noisy cold than when hot. i had the pan off when doing the head and rod and crank bearings all seemed tight. the wrist pins seemed tight but couldnt tell for sure without disassembling further. oil pressure is real good too.
 

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