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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: 1498125, member: 29749"] Funny you mention that, that's exactly what I'm working on at the moment. Ford wants to sell you the entire assembly instead of just the shaft bushings. I'm looking into how I can install some oilite bearings in the assembly. Fortunately, mine's not worn out, but if I didn't attend to the bearings, I would certainly have to replace it. I'm looking into replacing the shaft with a grade 8 bolt to convert it from 8mm in diameter to 5/16 or maybe 3/8. That way I can find oilite bearings much easier. This whole clutch setup is one huge mess of programmed failures to keep you coming back to visit the service department. BTW- I improved the master cylinder rod by cutting off the loop on the end, ground it down smooth and ran a 3/8 24tpi die about 1.5" on it. The heim joint is a 3/8 x 24tpi with one side ground a little bit for clearance on the pedal. I ground the weld down, then knocked the stud out, reamed the hole slightly to fit a 3/8 x 1.5" bolt in it. I mig welded a 3/8 x 16 tpi nut to the pedal arrm (straddling the hole). Now the master cylinder shaft heim joint installs with 1 grade 8 bolt, no mess, no fuss. No more broken plastic B.S. either. BTW, I laughed at the instructions when i installed the master cylinder shaft- it said CAUTION: YOU CAN ONLY INSTALL THE SHAFT ONCE. IT LOCKS IN- MAKE SURE YOU HAVE EVERYTHING SET BEFORE YOU INSTALL IT. OOOH MYYYY!!!! WHAT WILL I DOOOOO? LOL I call B.S. !!!! I removed the entire hydraulic system while working on the pedal tree. There are two fingers inside the master cylinder hole that retain the shaft. Simply insert a thin bladed regular screwdriver in there and push them toward the outside of the cylinder. Monkey around with it, you'll pop the shaft right out. I will see about a tool to remove it, I happen to use a type of tubular removal tool in electronics - removes barrel shaped connections in plugs. That's how I knew how they designed this. Once you get the shaft out, you can do all sorts of schitt to it. I happen to have a lathe, but you don't need one to dress the shaft. Just stick it in a bench vice and get after it. Use a 3/8 x 24tpi die to thread it. Make sure you put a jam nut on it too. That eliminates the need for 'hogging out' the heim joint end and installing a tiny set screw. You KNOW what happens when those are loosened, right? They fall out, NEVER to be seen again. I will continue my write up, I'm figuring out all kinds of workarounds to improve this cheaply designed crap. Ford isn't the only one, GM and Mopar are just as bad. [/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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