Thor Forums

[Dragon70]

I saw this post when I was in Idaho a couple weeks ago which prompted me to check my wipers. Both acorn nuts were very loose. The one on the passenger side I literally spun off with one finger. The spring washer had just enough bite to hold it. I tightened both nuts very tight and didn't give it another thought, that is until this morning. I was putting new wiper blades on and again noticed both nuts were loose, the one on the passenger side again barely hanging on. I did use my wipers on my return trip to AZ but total time was probably not more than an hour. These blades mount over a sort of spline and there is a small amount of play in it. If the blades are even a tiny bit loose the blade works back and forth on the spline loosening the nut further. My blades have started to wallow out a bit from the back and forth movement which makes the problem worse. I put a healthy dose of loctite on it and tightened it as much as I thought I dare (don't want to strip the gears) and will keep a close eye on it. Don't know if this is a new design but having read all the posts of blades falling off it's a pi** poor one. I'm thinking this one is on ford. In any event I highly encourage you to check this.