To the same Tirmpo that you pusted the piston to give it you have to turn it but with the precaution that the left side you have to turn it left and the one on the right side you do it but to the right. There are useful useful of universal pills that are going well but they are expensive if you only use it for your own use, it is profitable for a workshop, but with an Allen key and a carra making a little thrust to the second round begins to perform, luck