Saturday, April 20, 2013

Windshield wiper modifications





























So....  turns out that out on the road in real rain the wipers were overshooting and slapping the windshield frame.  The not so easy easiest fix seemed to be shortening the crank arm that sits on the wiper motor.  All of the rest of the mechanism is essentially inaccessible within the dash assembly.  I picked up a crank arm from a Trooper in a junk yard. The original Falconstein crank arm is the top one in the first photo. The Trooper one is the lower one.  Thie picturse shows it with the swivel ball removed and a new hole drilled where I relocated it to creat a shorter crankarm. the second picture shows both again with the "new one" with the swivel ball in place and the excess arm length cur off.  The swivel was "off center" on the arm to compensate for a slight difference in the slotted mounting hole angle.   Replaceing the new arm back into the socket the swivel ball fits into proved very difficult.  After several hours of trying to improvise something to press it in place I ended up fabricating a special clamp shown in the third picture. The fourth picture shows the clamp in place.  The resulting reduced arc of the wipers seems to be a little less than desired but better functioning that they were.  The real test will be on the road again in real rain.   _I do not understand how blogger formats pictures and text so if this looks weird it's not me!!!????