
However, depending on where the screws or bolts are installed, there may not be enough room to handle the pliers or a metal tip. If the screw or bolt heads are still in place, but you can't use a screwdriver or wrench to loosen them from the outside, you can use locking pliers to loosen them from the outside. If you try to loosen the bolts with a poor grip on the tool due to rust, you may strip the hexagon head, and if you try to turn the bolts without spraying lubrication spray, the hexagon head may break off. The clay oil is soft and will fit in the crisscross grooves in its own way if you press a screwdriver against it, so you'll want to loosen it up as it is, but if the crisscross grooves are clogged with foreign matter, a pick tool or brush and parts cleaner is the first thing to do.Ĭare must also be taken when loosening a bolt that has rusted bright red. Speaking around the engine, screws around the drive sprocket area, where spattered chain oil often hardens into a clay-like substance, can be dangerous. However, a surprising number of motorcyclists have crushed, or nearly crushed, the grooves with a come-out by applying a screwdriver to a dirty cross-groove when turning an old, dirty motorcycle bolt.

When loosening a Phillips screw, it's an ironclad rule of thumb for the job to focus on the force of pressing down rather than the force of turning the screwdriver. When dealing with rusty bolts and screws in the maintenance and restoration of old motorcycles, it's important to remove the dirt and keep the tools in place. I tried to poke a screwdriver in and turn it with the rust and dirt stuck in the cross-slot, and it slipped the groove.

Dirt and excessive rust clogging the crisscrossing grooves is a danger signal.
