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Power Strokes
7.3 Tech
ZF6 -650 rebuild and other things I've done on my early 99 7.3 F350
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[QUOTE="Dave_Nevada, post: 1508185, member: 29749"] Well, after several months of running my rebuilt ZF6, it's still good and I'm happy with it. The solid bronze bearing has given me no trouble, along with the modified pedal tree. However, one fly in the ointment is the throwout bearing arm. It looks like it's bent, because I measured the distance from the bellhousing to the dimple in the arm and it's just shy of 4.5". That's exactly the length of the slave pushrod length reach I measured back when I had the thing all apart. The symptoms started to show up one day when the trans was a bit hard to get out of gear. The clutch pedal isn't mushy, but you can tell you're bottomed out and the trans won't shift from gear to gear like it's supposed to. I made this measurement when everything was brand new and I had 1.94" of room to operate from the bellhousing to the clutch fork dimple. That particular distance grew to exactly the measured distance of the slave pushrod. That means the arm has bent to the maximum reach of the slave cylinder pushrod and there's no wishing it away. Well crap. Looks like I'll be pulling the trans to replace that arm. This time, it's going to get some reinforcing steel rod welded on it's back side so this crap doesn't happen again. This also gives me an opportunity to inspect the solid bronze pilot bearing and to inspect the Valair HD clutch and throwout bearing. I'll check the bolts on the up-pipes I installed from Riff-Raff while I'm down there. Oh well. At least everything is nice and clean under there and it won't be such a hassle to work on it. Film at 11. [/QUOTE]
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ZF6 -650 rebuild and other things I've done on my early 99 7.3 F350
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