Part Number/Supply for Upper Sedan Door Hinge "Grease Bolt"...

[mqbus767]

Hello Bus Nuts,

Looking for a part number and/or qty. 1 of a sedan door upper hinge "grease bolt" or "axle bolt". Below is a picture of said bolt. My bus came with transit doors and thanks to Glennman I'm working on installing a replacement sedan door. Any pointers for this piece would be mucho appreciado.

[Sebulba]

Hello,

I'm sorry that nobody has responded to your post.

I don't have any experience with this, but it looks like I will be getting some experience since it looks like my upper hinge is badly worn.

My suggestion is to talk to Luke.  He seems to be the go to guy around here for parts.

Seb

[luvrbus]

McMaster-Carr should have those or Grainger they are common on tractors and construction equipment 

[Sebulba]

McMaster-Carr should have those or Grainger they are common on tractors and construction equipment

Hmmm, now we're back to needing the specs to get one.  In my case, I don't want to take it apart till I have the parts, since we are living in it.  Plus, it's so worn that I'm not sure if we took it out we could tell what it was supposed to look like.

In the case of the OP he doesn't have one to even show someone to get a new one -- I think 🤔.

Thanks for the insight, another clue will help.

Seb

[mqbus767]

The top picture is indeed the bolt that I need. The tip of it is broken off though, so it might not quite look correct. Although I can find generic grease bolts, this particular one has a larger main thread, then a short threaded tip of a smaller size. I was PMd by another member on this site that is going to send me some details that might get me squared away. I'll share them here once I know. I was hoping this part was a commonly replaced one that others on here might recognize.

It still tweaks my brain a bit to see a hinge that is engineered to rotate on threads instead of a bearing.

[Sebulba]

The top picture is indeed the bolt that I need. The tip of it is broken off though, so it might not quite look correct. Although I can find generic grease bolts, this particular one has a larger main thread, then a short threaded tip of a smaller size. I was PMd by another member on this site that is going to send me some details that might get me squared away. I'll share them here once I know. I was hoping this part was a commonly replaced one that others on here might recognize.

It still tweaks my brain a bit to see a hinge that is engineered to rotate on threads instead of a bearing.

Great, if all I would need to do is replace the bolt that shouldn't take more than 15 minutes.  IE: 8 hours and 267 minutes 😉.

Seb

[mqbus767]

Heard back from Glennman. The grease bolt for our door hinge is part number 3J-10-168, but good luck finding info online for that part number. Glenn says its about $35 from MCI, so that's one option.

Another option I think I'll consider is similar to what luvrbus suggested in another thread; just bore it out and use some bushings/bearings. Since I don't have an upper hinge, upper bracket on my bus I might just consider using a generic grease bolt with correct threads and long enough to go all the way through bottom to top. Then I can probably jam nut top and bottom between some simple brackets to secure it.

Glenn has a great video on his solution for this here: https://www.youtube.com/watch?v=9iJhpHKyr8s

[Glennman]

I see you got the old pin out. Nice! When I was installing my door, I racked my brain trying to figure out (like you) 1. Why they would use such a hinge pin, and 2. How to modify a bearing type set up. All I can figure is that when the door opens, the travel in the threads would slightly lift the door as it opens taking pressure off the lower hinge for when the door is open (totally conjecture on my part and probably way off base). I looked again at my notes, and the pin is said to be $50 rather than $35. I have a cash account at FPI (the parts handler for MCI). If you cannot find one, I can look there.