Hello. I own a 1984 Volvo 240. I have owned it for about 4 years now and never had any issues at all until the wipers quit working 2 weeks ago. What a nightmare to fix. I am happy to say my guy figured it out after 3 hours! The pulley fell off the shaft and once the dash was completely dismembered trying to figure out this system and putting it back together was not easy. Rocket science is easier. I am now back in motion and it probably won't rain again for awhile.