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 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.
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”.
Why is my car running hot and cold?
The cycle continues as long as the car is running. Over time, this fan clutch can wear out, causing the fan to freewheel whether it is hot or cold. This causes reduced airflow through the radiator, and therefore high operating temperatures during low speed driving.
Why does my car RX-7 won’t start?
My car has been sitting for a long time and won’t start. The RX-7 (especially 1986 and newer) is well known for flooding problems. One of the most common is caused by a “short start” condition. The “short start” is when someone starts the vehicle and turns it off before it is allowed to reach full operating temperature.
What causes a 1986 RX-7 to flood?
The RX-7 (especially 1986 and newer) is well known for flooding problems. One of the most common is caused by a “short start” condition. The “short start” is when someone starts the vehicle and turns it off before it is allowed to reach full operating temperature.
What causes flooding in Mazda RX 7 rotary engine?
Flooding problems. This is the infamous flooding problem – a weak link in the rotary engine. There are MANY things which can cause flooding, from worn motors to weak spark plugs to misadjusted throttle position sensors.
Do you have to unflood a rotary RX-7?
You will have to actively unflood the vehicle. RX-7’s WILL NOT unflood themselves, even if allowed to sit for long periods of time. DO NOT pump the gas pedal at any time while cranking the engine. If the vehicle doesn’t start within 5 seconds of cranking it’s probably not going to start without unflooding.