What kind of cooling system does the RX-7 have?
There is nothing particularly special about the RX-7 cooling system, except the fact that there are actually two in the car. The first system is the one we are concerned with. This is the water system. Like any other car, it contains 4 key components; the thermostat, the radiator, the water pump and the fan.
Why is my RX-7 engine not cooling properly?
As cold air flows over it, the clutch loosens up, allowing the fan to freewheel on the shaft of the engine. The fan then hardly turns. As the air flowing over the clutch heats up (as the engine transfers more heat to the radiator) the clutch tightens up, spinning the fan faster and drawing more air through the radiator.
What’s the normal operating temperature of an RX-7?
For the purposes of this document, normal operating temperature is defined as 1/4 on the stock temp gauge for ’86-’88 car, and 1/2 on the stock gauge for ’89+ cars. Note that the stock ’89+ gauge is truly terrible and has basically three positions: cold, normal, and “new engine”.
What kind of coolant do you use on a rotary engine?
Use a 30/70 mixture of ethylene glycol and water. Never use “red” coolant (Dex-Cool) as it is very corrosive to the seals inside the rotary engine. If flushing the system and replacing hoses has fixed your problem, congratulate yourself and sit down with a drink of your choice.
There is nothing particularly special about the RX-7 cooling system, except the fact that there are actually two in the car. The first system is the one we are concerned with. This is the water system. Like any other car, it contains 4 key components; the thermostat, the radiator, the water pump and the fan.
As cold air flows over it, the clutch loosens up, allowing the fan to freewheel on the shaft of the engine. The fan then hardly turns. As the air flowing over the clutch heats up (as the engine transfers more heat to the radiator) the clutch tightens up, spinning the fan faster and drawing more air through the radiator.
For the purposes of this document, normal operating temperature is defined as 1/4 on the stock temp gauge for ’86-’88 car, and 1/2 on the stock gauge for ’89+ cars. Note that the stock ’89+ gauge is truly terrible and has basically three positions: cold, normal, and “new engine”.
Use a 30/70 mixture of ethylene glycol and water. Never use “red” coolant (Dex-Cool) as it is very corrosive to the seals inside the rotary engine. If flushing the system and replacing hoses has fixed your problem, congratulate yourself and sit down with a drink of your choice.