I need a viscous coupling for a project that I'm working on. I've read that most cars have some inside, and I am thinking of going to the junkyard and scrapping one off a car. I am not by any means a car expert, so I have no idea where to look for the part. the wikipedia page has a section about their use in cars, but I still cant deduce where in a car they would be located. Can someone please tell me how I would go about removing one of these from a car in a scrapyard? Thanks.
They are located on the radiator fans where the van is driven off the engine. So typically older vehicles or conventional transaxle RWD cars and trucks.
Typical vehicles which have a viscous coupling fan would be: Landrovers pre 2005 Heavy duty trucks such as Scania, Daf, Volvo etc RWD Ford transits and a lot of conventional 4x4s or large engined RWD vehicles
Another type of viscous coupling would be a torque convertor located between the engine and a automatic gearbox. This is used instead of a clutch in a manual gearbox. These can still be found in modern automatics but a lot now have conventional clutches which are computer controlled.
Vehicles which I know have a torque converter are: Landrover automatics pre 2005 BMW automatics pre 2012 (post 12 may do but I'm not sure) and most automatics pre 2000 will be very likely to have a torque convertor