Engine valve spring removing/installing kit

An engine valve spring removing/installing kit, comprising:

• a frame having an elongate base, two legs, two bolts and a post, the two legs connected to an underside of the base and the bolts respectively extending through the legs and the base, the frame adapted to be connected to an engine by locking the bolts to the engine, the post extending from a top of the base;
• an arm being an elongate arm and pivotably and radially connected to the post by a first positioning member, an elongate slot defined through the arm;
• an adjustment device having a retainer, a second positioning member, a ball, a third positioning member, a threaded rod and a rotary member, the retainer located on one side of the arm and having an extension which extends through the slot and is connected with the second positioning member so that the retainer is movable along the slot, the second positioning member locking the retainer, the ball being rotatably retained in the retainer, the third positioning member threadedly connected to the retainer and contacting the ball to position the ball, the threaded rod extending through the ball and having an operation section on a top end thereof which is adapted to be cooperated with a tool to rotate the threaded rod, a connection section extending from a bottom end of the threaded rod, and
• a presser pivotably connected to the connection section, the threaded rod having a support portion extending radially therefrom which is located close to the connection section, the support portion supporting the presser and the connection section connected to the rotary member so that the presser is rotatable relative to the presser.