Freightrain Posted Wednesday at 03:31 PM Author Share Posted Wednesday at 03:31 PM Sealed bearing probably got warm enough to finally dry the grease out and burnt itself up. I used to run a bronze bushing in my race car but it would hog it out crazy. Switched to a sealed bearing and it has run decades without issue. The metallic disc is surprisingly smooth release. Though it only has 200# base pressure with 11 grams on each lever and a couple turns of base it has maybe 1200# at 6500 rpm. Easy to drive around. The metallic disc in my one hot rod was brutal to drive. Smooth backing out of garage, then it would get chattery and be horrible to get it to start out smooth. Either try to stall or I would just wind it up and go and then spin the tires. The race car has a solid hub but hot rods have sprung hubs. You made a comment early Geoff about encapsulated springs. I used to have those in some of my old sprung hub clutches. I guess it is suppose dampen the spring? I would get a year before I would rip the center hub out of the disc. It would rip the pedestals apart and the plastic on the springs would be hammered. Thus switching to solid hub design. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/75768-300-rebuild/page/18/#findComment-588666 Share on other sites More sharing options...
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