The Sealey Valve Spring Compressor OHV is a specialist engine service tool designed for replacing valve springs and valve stem oil seals without removing the cylinder head. This time-saving tool is ideal for professional mechanics and workshops undertaking engine overhaul and valve train maintenance work. The compressor features a reversible jaw adaptor and automatic cam-action lock that allows you to preset spring tension for controlled, safe operation. When used in conjunction with the VS1601 Compressed Air Adaptor (sold separately), this tool enables efficient in-situ valve service work, significantly reducing labour time and complexity on suitable engines. Suitable for use on a wide range of OHV (Overhead Valve), OHC (Overhead Cam) and CVH (Compound Valve angle Hemispherical) engines, this versatile compressor is compatible with most common engine configurations. The lightweight design at just 0.83kg makes it easy to handle during precise valve train work. Please note this tool is