AMGeneral Posted June 4, 2021 Share Posted June 4, 2021 Hi all, I am running into a little problem with my B81, I am replacing a cracked rim wit a new one and even with clean hub spokes and wheels the wedges will barely go on for enough to get 2 threads to hold. I did notice what I would call an extra part that I haven't seen when doing dayton wheels. It's a wedge shape band between the inner wheel and the hub, about 1 inch wide and looks like an extra spacer. Is this something that has been added or something only on 65k rears? Quote Link to comment Share on other sites More sharing options...
AMGeneral Posted June 5, 2021 Author Share Posted June 5, 2021 Well folks, I figured it out, It is a spacer used on the inner wheel so they will clear the brake chambers, I tried installing the inner wheel without them and the wheel hit the chambers. I guess now I will be buying 3 inch wheel spacers vs the 3 1/2 inches that it currently has so I can get the wedges to seat properly. 1 1 Quote Link to comment Share on other sites More sharing options...
Rob Posted June 5, 2021 Share Posted June 5, 2021 Thanks for the follow up. I've not seen that problem but also haven't worked with such heavy rears that I remember. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
Vladislav Posted June 5, 2021 Share Posted June 5, 2021 8 hours ago, AMGeneral said: Well folks, I figured it out, It is a spacer used on the inner wheel so they will clear the brake chambers, I tried installing the inner wheel without them and the wheel hit the chambers. I guess now I will be buying 3 inch wheel spacers vs the 3 1/2 inches that it currently has so I can get the wedges to seat properly. Do you have 3 1/2 spicers over the other 3 wheels? I'd guess 3 1/2 is used with no additional spicer or for more narrow rim. Also I'd investigate the rims width both the original (old) one and the newly purchased. Including measuring the distance between its edge (tyre bed) and the inner (welded on) ring it gets against the inter rim spicer. Here all is about geometry. So could be found and worth to for having no further surprizes. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
AMGeneral Posted June 6, 2021 Author Share Posted June 6, 2021 On 6/5/2021 at 5:10 AM, Vladislav said: Do you have 3 1/2 spicers over the other 3 wheels? I'd guess 3 1/2 is used with no additional spicer or for more narrow rim. Also I'd investigate the rims width both the original (old) one and the newly purchased. Including measuring the distance between its edge (tyre bed) and the inner (welded on) ring it gets against the inter rim spicer. Here all is about geometry. So could be found and worth to for having no further surprizes. Yes,all 4 rears that 3 1/2 spacers, although it's obvious that some have been squashed by someone using an impact on the wedges. I have measured the rims, all (including the new one)are 8.5 inch wide rims, I did notice the new rim does have a more gradual roll from the wedge seat vs the old rim. That may account for the extra distance,the narrower spacer will cure that. Quote Link to comment Share on other sites More sharing options...
mowerman Posted June 7, 2021 Share Posted June 7, 2021 I’ve never seen them either and I worked in a tire shop in the 70s changed hundreds of spoke wheels… bob Quote Link to comment Share on other sites More sharing options...
Maddog13407 Posted June 7, 2021 Share Posted June 7, 2021 most all macks originally had 3 5/8s spacers..... everything gets mix matched over the years Quote Link to comment Share on other sites More sharing options...
mrsmackpaul Posted June 7, 2021 Share Posted June 7, 2021 Well I'm thinking maybe the chambers might of been upgraded to a bigger size requiring spacers behind the rims to clear the chambers I'm thinking this is possibly the case As with most things there are flow on effects Paul Quote Link to comment Share on other sites More sharing options...
Vladislav Posted June 8, 2021 Share Posted June 8, 2021 On 6/7/2021 at 1:39 AM, AMGeneral said: Yes,all 4 rears that 3 1/2 spacers, although it's obvious that some have been squashed by someone using an impact on the wedges. I have measured the rims, all (including the new one)are 8.5 inch wide rims, I did notice the new rim does have a more gradual roll from the wedge seat vs the old rim. That may account for the extra distance,the narrower spacer will cure that. I also have a "wrong" 24 inch rim. It generally looks the same as the rest of the set but has slightly different style of the locking ring. The issue is it can't be fitted as an inner wheel. Doesn't go on the hub being a bit less in ID. You can fit it as an outer wheel but not for inner. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
Mark T Posted June 8, 2021 Share Posted June 8, 2021 That ring you described ? I can almost remember that being some kind of repair for when a spoke had a piece broken off (like from a spinning rim) I wanna say they were called Harris rings (?) guys used them instead of replacing the hub so the rims would tighten up and run somewhat true. Quote Link to comment Share on other sites More sharing options...
AMGeneral Posted June 16, 2021 Author Share Posted June 16, 2021 Well, the 3 inch spacer band worked flawlessly, I still have 7/8 inch or better between the tires. Time will tell how well it holds up. Quote Link to comment Share on other sites More sharing options...
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