Travel'n Man Posted January 27, 2018 Share #157 Posted January 27, 2018 I went and bought a used rack because of this thread. Next winters project. It’s a whole lot better when not sacrificing the live part on your car!Sent from my iPhone using Classic Zcar Club mobile Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-540888 Share on other sites More sharing options...
BDJeff Posted March 2, 2019 Share #158 Posted March 2, 2019 (edited) Great thread, addresses most of what I'm doing. However, one thing not mentioned is how should the tie-rod end fit in it's socket? Mine are pretty stiff and feels like there may be some flat spots inside. Has anyone taken them apart? The grease seems OK, not all stiff and old. Should they move freely or is stiff OK? Edited March 2, 2019 by BDJeff Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-569866 Share on other sites More sharing options...
BDJeff Posted March 2, 2019 Share #159 Posted March 2, 2019 Also, there is a hole it the right side of the rack. Is it for a zerk fitting that's fallen out? It doesn't seem to have any threads but I'm still cleaning it out. Is it a "reservoir" item #25 here and if so, does anybody have a picture of what it looks like? http://www.carpartsmanual.com/datsunS30/DatsunZIndex/Steering/SteeringGear/tabid/1746/Default.aspx Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-569869 Share on other sites More sharing options...
Patcon Posted March 2, 2019 Share #160 Posted March 2, 2019 Yes they come apart, 30mm wrench if I remember correctly. They need to move but not flop around. The FSM has some specs for them. The 240z has a reservoir that is NLA . Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-569871 Share on other sites More sharing options...
Patcon Posted March 2, 2019 Share #161 Posted March 2, 2019 The FSM also speaks to those holes. I think they are supposed to be filled with a grub screw, but they weren't there on the rack I tore down. Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-569872 Share on other sites More sharing options...
Rasmusch Posted January 10, 2021 Share #162 Posted January 10, 2021 On 10/8/2017 at 5:41 PM, Captain Obvious said: Here's a pic of the whole rack exploded. Only thing you can't see is the lower pinion bearing. I pulled it out, cleaned it, and put it back in before I thought to take this shot. And I wasn't going to pull it again just for the camera: Left end parts: Right end parts: Amazing thanks for sharing !!! How much grease do you add when assembling the inner tie rod back together ? any pictures of that 🙂 Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-614205 Share on other sites More sharing options...
zKars Posted July 28, 2021 Share #163 Posted July 28, 2021 (edited) Got a rack with a worn short bushing, then started searching.... Found this thread, the size needed. Thanks Mike W. I'm going to buy a few of these and turn the OD ID to the right number. ID = 24.98, these are 25mm. OD = 28.55, these are 30mm. Got the 50mm length so I have something to chuck up. Or up chuck..... What do you think? Guess it depends on if I'm happy with the ID fit. Got to better than the sloppy noodle I have now Edited July 28, 2021 by zKars Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-625851 Share on other sites More sharing options...
zKars Posted July 28, 2021 Share #164 Posted July 28, 2021 Better yet these! https://www.mcmaster.com/7965K834/ Groove and all! What do you think now? 1 Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-625853 Share on other sites More sharing options...
Captain Obvious Posted July 29, 2021 Author Share #165 Posted July 29, 2021 My thoughts (for what they're worth): There are those that say machining the sintered oil impregnated stuff can be problematic. Unless you do it right, you can "smear" some of the material and close off the oil holes. That said, if you're only machining the OD, then that shouldn't matter. Also, SAE 841 is softer than the traditional "bearing bronze (932 or 660 leaded)". It's probably going to be softer than the original bushing, but for the steering rack application, it's probably good enough. As for the second choice from McMaster, I like that it's made from 932, and I like the oil groove. But if you cut 20mm off, you'll be cutting right through the middle of the oil groove. Now since we're using thixotropic grease and not oil... Does it really matter? And as you mentioned... I think a lot of this will all come down to how you like the fit on the ID. Good luck with the lathe work and keep us posted!! 1 Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-625898 Share on other sites More sharing options...
zKars Posted August 13, 2021 Share #166 Posted August 13, 2021 Well an interesting little something showed up in the mail today. This is neither of the above mentioned possible sources for raw materials. This is a real Nissan part. What I did was search for the part number of the right hand longer bushing (48128-78500), rather than the number for the shorter left side that always wears out. Easy to make something shorter….. I got one, let me see how many more are actually available before I reveal my source No sense gets hopes up too high. 2 Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-626844 Share on other sites More sharing options...
Captain Obvious Posted August 14, 2021 Author Share #167 Posted August 14, 2021 Looking at the burrs and shiny spots on the end of the shell... Do you think they already cut down the length of a longer bushing? I also find it interesting that there's a mark on the outside diameter that reflects the location of the lube groove on the inside. I'm guessing that thing was cast bronze and the groove was cast in and not machined in? Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-626877 Share on other sites More sharing options...
Namerow Posted August 14, 2021 Share #168 Posted August 14, 2021 @zKars Are the OE bushings split, like this one appears to be? If so, it adds some interesting wrinkles to how the ID and OD specs should be interpreted. Link to comment https://www.classiczcars.com/topic/48621-steering-rack-disassembly-and-refurb/?page=14#findComment-626892 Share on other sites More sharing options...
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