LooseRocks Posted August 26, 2019 Share Posted August 26, 2019 (edited) The plastic/rubber collar that sits on the end of the pivot rod inside the chassis body. Where can I get one for a 1971 240Z? Edited August 26, 2019 by LooseRocks remove duplicate diagram Quote Link to comment Share on other sites More sharing options...
bhansen Posted April 15, 2020 Share Posted April 15, 2020 Did you have any luck? Quote Link to comment Share on other sites More sharing options...
LooseRocks Posted July 28, 2021 Author Share Posted July 28, 2021 (edited) I ended up using this for the cover. https://www.ebay.com/itm/322003402554?hash=item4af8e5ff3a:g:5kYAAOSw4tBecOhb I never found the plastic bushing. Mine was cracked but it seem ok and I couldn't find one. If it breaks then I think the only thing I can do is have a friend with a lathe machine one out of delrin. Edited July 29, 2021 by LooseRocks Quote Link to comment Share on other sites More sharing options...
fusion Posted June 8, 2023 Share Posted June 8, 2023 I need one of these bushings. Has anyone found a source or perhaps made a CAD file for 3D printing? Quote Link to comment Share on other sites More sharing options...
rreford Posted October 2, 2023 Share Posted October 2, 2023 I found a solution for the rubber bushing (I believe - fits up well). I was perusing the Help aisle at AutoZone and saw a Dorman oil filler tube grommet (part #42306). Nice tight fit on the body, and it holds the plastic bushing well. My plastic bushing is cracked as well, but holding up well otherwise. I'll see how the rubber bushing looks after some mileage, but shouldn't see a ton of wear anyways. Quote Link to comment Share on other sites More sharing options...
jhm Posted October 2, 2023 Share Posted October 2, 2023 I seem to recall seeing someone 3D printing the plastic bushing…maybe on FB? I’ll dig around and see if I can locate the info. Quote Link to comment Share on other sites More sharing options...
walkerbk Posted October 3, 2023 Share Posted October 3, 2023 If you want to get me dimensions, I can 3D print whatever you would like and sent it to you for the cost of postage. Wont take but 20 minutes to print I'm sure. 1 Quote Link to comment Share on other sites More sharing options...
jhm Posted October 13, 2023 Share Posted October 13, 2023 @walkerbk, very kind of you. Did anyone ever take you up on your generous offer? Quote Link to comment Share on other sites More sharing options...
walkerbk Posted November 2, 2023 Share Posted November 2, 2023 No they did not. Quote Link to comment Share on other sites More sharing options...
Sanchez Posted December 9, 2023 Share Posted December 9, 2023 That Autozone grommet seems like a decent replacement. Though when mine came out it seemed like it was originally a hard plastic, and not rubber that turned hard over 50yrs. My plan was to turn one on a lathe out of a small puck of delrin. Now most of my linkage were so rusted and seized they had to be cut off, so if anybody has a line on reproductions or DIY solutions I’d appreciate a PM with the info. Quote Link to comment Share on other sites More sharing options...
foosman Posted December 29, 2023 Share Posted December 29, 2023 On 10/3/2023 at 7:05 PM, walkerbk said: If you want to get me dimensions, I can 3D print whatever you would like and sent it to you for the cost of postage. Wont take but 20 minutes to print I'm sure. Going through the same process with my emergency brake handle - pics attached. The inner delrin(?) bushing is split, seems by design so that it can be removed, mine appears to be in decent shape. The outer black cover is cracked around the inner (smaller) hole. Rough dimensions of the outer cover: 28.5mm diameter big hole side (IMG_5339), 2.8mm wall thickness. 19.30mm diameter small hole side (IMG_5341). 17.5mm height (IMG_5340). Some ridges are present in the cover which may or may not be functionally relevant. I can try and get better measurements of the cover, the details of the tranny tunnel hole where they fit, or I'd be willing to ship you the cover if that makes it easier to set up in your printer and check printed parts against. Quote Link to comment Share on other sites More sharing options...
walkerbk Posted December 29, 2023 Share Posted December 29, 2023 @foosman below is what I came up with based on what you gave me. based on the design of the Datsun I am assuming that this part is a seal used to keep out road grim and such (if that is the case, I would change up some of it to prevent water intrusion). With that in mind, the dimensions of that which it seals up against would be just as important if not more. I have TPU filament which is a Composed of polyurethane and rubber but Im not sure how well it would hold up under a vehicle. Quote Link to comment Share on other sites More sharing options...
foosman Posted December 31, 2023 Share Posted December 31, 2023 @walkerbk Let me get the measurements in the tranny tunnel, and I'll get back to you. Thanks! Quote Link to comment Share on other sites More sharing options...
foosman Posted December 31, 2023 Share Posted December 31, 2023 On 12/29/2023 at 11:14 AM, walkerbk said: @foosman below is what I came up with based on what you gave me. based on the design of the Datsun I am assuming that this part is a seal used to keep out road grim and such (if that is the case, I would change up some of it to prevent water intrusion). With that in mind, the dimensions of that which it seals up against would be just as important if not more. I have TPU filament which is a Composed of polyurethane and rubber but Im not sure how well it would hold up under a vehicle. Hi @walkerbk - more data for you, and pictures. The stub in the tranny tunnel that the pivot fits into, and how the ebrake shaft fits into it. The white delrin bushing fits inside the stub, and the black cover fits around the outside of the stub to keep stuff out of the greased delrin bushing. I measured the outside diameter of the stub, and it measures 28.5mm which matches my earlier measurement of the "big hole side" of the cover. There is probably some additional thickness with the bedliner coating in my tranny tunnel, but as long as the cover has some stretch to it, it should be able to fit over the stub to provide the seal. As far as how the cover will hold up under the vehicle - I suppose it would have exposure to grease/oil/water, maybe some heat from the exhaust? Let me know how you want to proceed - I'd still be willing to ship you my black cover for comparison if that would help. Thanks! Quote Link to comment Share on other sites More sharing options...
walkerbk Posted January 2, 2024 Share Posted January 2, 2024 Ok, so i think i have a working prototype for you to try out. I did a stepped lip on the side that buts up against the brake actuator and then did a minor fillet on the side that goes against the car. The inside diameter of the bushing is 28mm instead of 28.5 just to give it a tight seal against the metal "cup that it fits over. I just printed one off and will make a second one that is a little longer (21mm instead of 17 because i figure with the stepped lip it will slip up the shaft that it is sealing against). Again, i do not know how TPU filament is going handle some of the road debris and grease but it does handle heat just fine. I have made all the grommets for my engine bay out of this stuff and it still looks new after two years. If you want me to ship these to you, send me an address in a private message. 1 Quote Link to comment Share on other sites More sharing options...
foosman Posted January 3, 2024 Share Posted January 3, 2024 Thanks @walkerbk - pm sent. Quote Link to comment Share on other sites More sharing options...
foosman Posted January 7, 2024 Share Posted January 7, 2024 @walkerbk Tried out the 3 you sent. We have #1 and #2, with #2 being slightly longer than #1. #3 is the same length as #1, but has a thicker wall than #1 and #2. #3 didn't fit over the stub in the tranny tunnel. #1 and #2 both had a nice fit over the tranny tunnel stub, and #2 being a little longer, had a tighter seal against the brake actuator, so I would declare #2 the winner. Thanks again for all your efforts! Quote Link to comment Share on other sites More sharing options...
walkerbk Posted January 10, 2024 Share Posted January 10, 2024 So this is the finished product if anyone else is interested. It is made out TPU which is very flexible (and hard to print). I have used TPU to create plugs for my floors, wiring grommets and other such. 2 1 Quote Link to comment Share on other sites More sharing options...
Seb Posted August 7, 2024 Share Posted August 7, 2024 @walkerbk Great work. Just stumbled over this thread as I’m in need for that seal as well. Living in Europe, any chance that you share your print file? I have a friend with a TPU printer available. Quote Link to comment Share on other sites More sharing options...
Jeff R Posted October 9, 2024 Share Posted October 9, 2024 Are these still available? Need the cover, my bushing is ok. Quote Link to comment Share on other sites More sharing options...
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