We had an old school (3 generation) radiator shop that used to remove one tank from one end of the radiator core and "rod it out" with various size flat rods. At the same time they would run water through the radiator to flush out the junk. It is probably cheaper these days to just buy a new radiator than to pay for all that labor.
The chandeliers in Governor's mansion are disassembled and cleaned once a year.
How are macromolecules assembled and disassembled
Carburetor probably needs to be disassembled and cleaned.
The regular maintenance of a starter is what is referred to cleaning the starter. When cleaning a motor it should be disassembled and cleaned using oil.
Most calculators need very little maintenance. If keys are sticking, the keyboard can be disassembled and cleaned; batteries can be replaced and battery contacts cleaned; and charger sockets can be replaced or repaired. That is about it, though.
I paid $246 but prior to installing it they disassembled it and cleaned it first which didnt work so they then ordered the part.
The carburetor needs to be removed, disassembled, cleaned, reassembled and replaced. If any gaskets tear in the process you will need a rebuild kit.
Most likely it is due to water or dirt in the carburetor. The carb will need to be disassembled and cleaned.
The radiator can be flushed with water running continuously. This will flush out any loose particles. The only way to completely clean the radiator is to have is professionally cleaned in a chemical bath.
disassembled
The most effective way to clean valve lifters is to disassembled the vehicle's top end and remove the lifters. They can then be cleaned with a mild solvent, lubricated, and re-installed.
The carb needs to be removed, disassembled, cleaned and reassembled. If any gaskets tear you will need a rebuild kit.