A pellet-type thermostat in the coolant outlet passage controls the flow of engine coolant to provide fast engine warm-up and regulate coolant temperatures. A wax pellet element in the thermostat expands when heated and contracts when cooled. The pellet is connected through a piston to a valve. When the pellet is heated, pressure is exerted… Read More »
The pump is of the centrifugal vane impeller type. The impeller turns on a steel shaft that rotates in a permanently lubricated bail bearing. The pump inlet is connected to the bottom of the radiator by a rubber hose. From the pump, coolant passes through the engine front cover into the coolant pas sages in… Read More »
The diesel engine uses a cooling system with a surge tank. The pressure cap for the diesel engine is different than the gasoline engine pressure cap and is located on the surge tank. The surge tank used with the diesel engine cooling system is pressurized. Coolant circulates through the surge tank to allow any air… Read More »
Gasoline engines use a plastic reservoir, connected to the radiator by a hose. As the vehicle is driven, the coolant is heated and expands. The portion of the fluid displaced by this expansion flows from the radiator into the recovery bottle. When the vehicle is stopped and the coolant cools and contracts, vacuum draws the… Read More »
All C/K-Model vehicles have pressure-type engine cooling systems with thermostatic control of the coolant circulation. The cooling system is sealed by a pressure-type cap that allows the system to operate at high er than atmospheric pressure. The high pressure operation raises the boiling point of the coolant, which increases the cooling efficiency of the radiator.… Read More »
Capturing and Storing Data Once a snapshot option has been chosen and the trigger point designated,theTech 1 begins storing serial data and codes in its memory. Uninterrupted data will flow into Tech 1 memory until the memory is full or a trigger occurs. If the memory becomes full before a trigger occurs, data in the… Read More »