257b need help !!

Hi every one .My first time on this forum . I have a Cat 257 B , runs good till this morning , iVe started the cat and was smoking , i have presure comming out from the oïl filler and the dip stick and even some oil coming out from the dip stick . i also see some oil in the turbo . Was runing good , yesterday i have changed the oïl and filter did not overfill i have start the ingine and put the cat on the trailer every thing was ok and this morning i had these problems when started it and it also smokes from the exaust , it still starts good and runs ok but i am not using it or starting it till y wont have found the problem.

I am thinking about rings , does a head gasket would make these kind of problems .



Any of you have experience these kind of problems or can give me a hint



Thank you

Andy