Valve pliers reach down around the valve stem into the confined areas of the seal to grip it for removal / installation. Knurled ends on the adapters / handles and sockets give you maximum grip in oily conditions.
eBay
Throat Depth: 72mm (2 7/8"). Designed to remove and replace worn or broken valve springs. US PRO Cylinder Leak Detector For Petrol Engines 5256. Universal design fits springs found on most makes of cars and small trucks.
eBay
A valve spring compressor is specially designed to help remove and compress valve spring convenient and safe. Our professional valve spring compressor is a ideal tool for use on most car, small van and motorcycle engines.
eBay
Maximum jaw opening: 265mm. Coil Spring Compressor Set Suspension Spring Compress. 2 x 67-120 mm Spring Holder. 2 x 88-160 mmm Spring Holder. 2 x 125-210mm Spring Holder. Do not use Pneumatic Tools or Electric Power Tools.
eBay
Firstly remove the strut from the vehicle, turn the hooks on the compressors along the thread of the bolt to the correct distance, then attach the 2 compressors equally spaced on opposite sides of the spring you need to compress.
eBay
With a hand ratchet or wrench, slowly and evenly crank the hex socket to compress the spring. Drive by ratchet or wrench. Adjust safeguard and tighten locking nut to secure in place. Heavy Duty Coil Spring Compressor.
eBay
Maximum jaw opening: 265mm. 1 X Extension Bracket With 4 X Hex Screws & 1 X Hex Key. 1 X Main Body With 21mm Hex Drive With SAFETY Overload Pin. 2 X Gold Small Jaws With 2 X Plastic Spring Protectors.
eBay
Jaw opening: Approx. 2" -10.8"/51 - 275mm. Arc degree range: Approx. 8.7" -12.4"/220 - 315mm. The coil spring compressor is constructed from heat-treated steel, screw and premium galvanized finish for high durability and corrosion resistance.
eBay