Some valve spring compressors allow the valve springs to be compressed and removed while the cylinder head is still attached to the engine block.

Question

Quizplus · Accepted Answer

Valve spring compressors designed for in-situ use can compress and remove valve springs without the need to remove the cylinder head from the engine block, allowing for repairs or maintenance without full engine disassembly.

Some Valve Spring Compressors Allow the Valve Springs to Be