Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Gumming
The formation of resinous gum on the underside of the piston and in piston ring grooves. This causes the rings to become trapped and unable to effect a gas-tight seal. The gum is produced by high temperature acting on the lubrication oil especially those of cheaper or unsuitable varieties.
