Can you lock a viscous fan?
Re: Viscous Fan in locking the viscous you should limit your rev to around 2500. seen too many locked viscous fans flying apart at around 3000 rpm. just remember that the viscous is designed to slip. replace with a new unit asap.
What happens when thermostat gets stuck?
Stuck open means too much coolant is being allocated to the engine, causing the engine to be abnormally cool. If the thermostat is stuck closed, that means not enough fluid is going into the engine and the engine will overheat.
What is viscous fan?
Viscous fan couplings (also known as viscous fans or viscous fan clutches in the aftermarket) are one of the lesser known products of the engine cooling system despite being part of more than 960,000 vehicles in the UK. Viscous fan couplings are located between the water pump pulley and the radiator.
What happens if the thermostat is stuck in the closed position?
However, if the thermostat gets stuck in the closed position, the coolant can’t flow through the radiator and can make your engine overheat. To quickly tell if your thermostat is stuck, watch the flow of coolant through your radiator.
Why does my fan not come on when the thermostat is on?
Move the lever on the thermostat to the “ON” position. The fan blower should come on. If it doesn’t then you probably have loose or burnt wires in behind the relay or you may need a new fan relay or circuit board. 2. Many times wires are either loose or burnt behind the fan center relay.
How can you tell if your car thermostat is stuck?
To quickly tell if your thermostat is stuck, watch the flow of coolant through your radiator. For a more accurate test, measure the temperatures of the engine and the hose leading to the radiators to see if they’re similar.
How can I tell if my thermostat is open or closed?
Take the thermostat out of the pot to see if it’s opened. Pull the thermostat out of the water with your tongs and set it on paper towels to dry it off. As the thermostat heats up, the spring should compress and the center ring will separate from the outer ring to make a gap in the middle.