These fan motors do not use a chassis ground because they are mounted in plastic. ![]() This worked out great because the wires only needed to be reversed. When I fitted the fan to my application I noticed there was a lot more room in front of the radiator so I spaced my radiator back toward the engine 1-1/2" and mounted the fan in front. When you get the alternator with the fan you KNOW they are matched as the alternator is certainly large enough for the fan, even if the car sits like a taxi cab. Ford turned one fan on all the time with the A/C compressor, and the other as a backup. The fan I'm using is one big fan in a molded shroud (like most of them are). For some reason, Ray decided not to install them on his car so I bought both pieces from him and I mounted both on our '59 Galaxie Y-block. He went to his local bone yard, found a Crown Vic and had them remove the alternator and fan. I tried to get Ray Clark to put an electric fan on his 'bird at one time. OEM fans work well, they are balanced and they last a very long time. Ryan got an electric fan setup from Cool Craft, I think it was. As for the electric fan, Dave Dare and others can tell you what to look for, as he and others have electric fans on their cars.Īnd this one also. Read all the information on alternators in the TRL. That way, if you add anything else electronically that is going to demand more power from that alternator, you will not have to worry about replacing one that has a much smaller amperage output. ![]() If you are going to add an electric fan, and necessary unit to control it, you may as well install a 130amp alternator or more, and be done with it. Look for "Selecting The Right Tbird Alternator" in the Final Dress section. I just put a new tech tip in the Technical Resource Library under the Alternator & Generator section. If you determine your fan clutch is no longer working, you can find a replacement cooling fan clutch for your vehicle at O'Reilly Auto Parts.Larry, we just had this discussion regarding electric fans, alternators, etc. If you are experiencing these issues check out our articles on how to replace a fan clutch and what causes engine overheating to keep your vehicle running its best. Failing to replace a damaged fan clutch or other cooling system parts may lead to overheating, severe engine issues, or damage if not addressed promptly. If the fan spins freely at operating temperature, or if it cannot be spun at all when the engine is cold, the fan clutch may have failed and needs to be replaced. Thermal fan clutches can often be tested by waiting until the engine reaches operating temperature, shutting off the engine, and attempting to spin the fan by hand. A bad cooling fan clutch can cause overheating, poor gas mileage, excessive noise, slower acceleration, and loss of power due to the added load of a stuck fan clutch on the engine. Cooling fan clutch failure may also cause the fan to run all the time, or it may fail to run at all. Symptoms of cooling fan clutch failure include the engine running at a hotter temperature when idling or at lower speeds, or you may notice that the air conditioning performance may also drop due to a lack of airflow through the A/C condenser. The fan clutch on your vehicle may suffer damage over time or can simply wear out with age, which might prevent it from operating when and how it should. Fan clutches may also not respond to temperature at all, but might instead be dependent on engine RPM to activate. ![]() This design permits the fan to spin freely, helping the engine to reach operating temperature more quickly and also reduces the load on the engine caused by driving. This also allows the fan to disengage once temperatures inside the engine compartment have stabilized, and it may also be able to slip against the resistance of air passing through the radiator while driving. Cooling fan clutches utilize a silicone-based oil that is sealed in the clutch chamber and bi-metallic springs that are designed to release oil pressure and engage the clutch at the appropriate temperature. The cooling fan clutch engages or disengages the cooling fan depending on the engine temperature and is typically bolted between the water pump and the fan itself. Older vehicles are more likely to have a clutch-style cooling fan rather than an electric cooling fan that is controlled by a relay. Vehicles are often equipped with one of three distinct types of engine cooling fans, one of which is a cooling clutch fan.
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