After several months of tinkering with my front brakes to get rid of the violent shaking, I thought I was finally back to FMC status. Saturday we needed to drive the 40 miles to Tacoma so we stopped for gas and got on the road. Two miles from the house and a quarter mile from the freeway we hear an alarming BANG CLANK from the right front- sounded like a wheel was coming off. I pulled to the side of the road. Everything looked OK so I hoped that it was just the BFGs throwing a rock but as soon as we started again it didn’t feel right and touching the brakes would result in all sorts of unfriendly sounds from the right front.
I limped it home using the parking brake as much as possible. While waiting for the wife to pull the Liberty out of the garage so I could put the WK inside, I got out to look at the wheel again. I reached through the wheel and poked the caliper and it swiveled in and out freely. One of the bolts must have broken or fallen out. We took the Liberty to Tacoma and made it back by 1:30. We drove back down the road looking for a small caliper bolt and found one that looked sort-of like it, but this bolt was broken and rusty. We were just about to give up when my wife spotted a bolt in the traffic circle about 500’ down the road from where we heard the BANG. That can’t be it, it’s much too big and I don’t see any anti-seize on it, but we took the two bolts home.
We were meeting friends at 3pm, so I didn’t have much time to take a look at the horror. I jacked it up and took the wheel off. Both caliper bolts are still there, but the caliper adapter was missing one bolt. It was the bolt we picked up in the traffic circle. I reinstalled it and retorqued all the caliper adapter bolts (easily reached without even jacking the truck).
So it appears that I must have forgotten to tighten one of the caliper adapter bolts. There was no damage other than a light scratch on the inside of the pintler wheel, where the caliper contacted it whenever I hit the brakes- and that action also stripped off the wheel weights so I’ll need to run to Discount Tire and have them rebalance it. For the noise it made I was sure it was going to be expensive, but in the end it turned out as little more than a lesson learned.
It was the lower bolt marked #3 in the diagram.
Poor grammar is something up with which I shall not put.