angielski > polski Technika/inżynieria Motoryzacja/samochody

Spring Pockets

Pocket clearance refers to the clearance between the ID of the spring pocket (where the spring rests on the cylinder head) and the spring’s OD.
Excess clearance allows the spring to move (dance) on the pocket, which leads to spring instability and causes wear at the bottom of the springs and the spring seat. A spring cup may be installed to register the spring OD. A spring locator may be used to register the spring ID. If there’s no clearance, the spring binds in the pocket, which places stress on the bottom coil, limiting the bottom coil’s ability to grow (via heat and compression).