Clamp for disengaging an inlet or exhaust valve from an engine

A valve spring compressing clamp comprising:

• an arcuate generally U-shaped frame having a first end including a stub adapted to engage an internal combustion engine valve head;
• a second end including a bore extending therethrough in a direction extending toward said stub;
• and a lever holding portion extending away from said stub;
• a push rod in said bore, said rod including a threaded opening in a first end facing toward said stub;
• a threaded adjusting stem adjustably and rotatably threadedly received in said threaded opening;
• a pusher tube secured to an end of said rod and extending coaxially with said rod;
• said pusher tube including an axial opening in an end thereof facing toward said stub and multiple transverse openings in a side wall area thereof, said axial opening configured to engage a valve spring while permitting passing of a valve stop member;
• an actuating lever device connected to a second end of said pusher rod, said actuating lever comprising a lever pivotally connected to said lever holding portion at a pivotal connection, an intermediate link pivotally connected at its opposed ends respectively to an end of said rod extending away from said stub and to said lever at a distance from said pivotal connection, said intermediate link pivotally connected to said rod and lever so that upon rotation of said lever towards the stub end about said pivotal connection, the pivotal connection and said pivotal connections between the intermediate link, the push rod and the lever may be substantially aligned.