What problem may arise from a clogged crankcase breather?

A clogged crankcase breather can lead to a buildup of pressure within the crankcase. This pressure can exceed the design limits of engine seals and gaskets, causing them to weaken and eventually fail. When seals and gaskets become compromised, oil can leak from the engine, leading to potential engine damage and loss of lubrication. This not only affects the engine's performance but can also result in environmental hazards due to oil leaks. Proper ventilation of the crankcase is essential for maintaining an optimal pressure balance, ensuring that the seals and gaskets function effectively without being overstressed.