Need some help mounting a tire on my split rim 21".
I have a rim spreader, and mount it with arms equal distance from the split, and the single arm across from them. I crank the handle, and the rim just moves so that the bolt hole is almost moved enough so I can put in the bolt, but not quite. The crank gets very hard to crank at this point, and the rim won't spread any more.
I have tried it in other positions, same thing happens.
Are both beads of the tire in the centre of the rim?
Use your model t jack between the lugs on either side of the split to expand the rim. You don't need anything more than that to expand rim and latch or screw the connection. Rim 'spreaders' work better for collapsing than expanding in my experience. And you can really do serious damage to an otherwise good rim by overdoing. Best of luck,jb
Turns out the tire flap was caught between the rim and bead . Luckily no damage caused by my attempts.
Do have another question however. I got the rim all good to go and latched up, but upon bolting into place on the felloe, one of the sides of the rim has it's lip bent inwards? Other side is fine.
Does this have to be fixed? I'd rather not have to take the rim off again... But will if it is needed.
Tube not inflated, if it makes a difference.
Those ends should be butted together. Maybe something is bent or it wasn't spread quite wide enough. Sorry, but you will have trouble if you drive it that way. I don't know where you got your rim spreader, but they were made in different sizes for different make cars. I once bought one at a swap meet and it was too short to work with Model T rims.
This is the universal rim spreader... think they came in the tool kits, or at least were the most popular.
Let the air down a little and knock the rim flush with a hammer. I use a big zip tie to compress the rim and a screw driver to spread it back out.
I did 4 this past weekend. Philip
Thanks Philip. Tube has no air so I'll try a hammer tomorrow. If no improvement. I'll remove the rim.
Once again this happened AFTER mounting it.
Not to hijack your thread John, but can anyone explain the reasoning behind why they made split rims? They seem to be a hassle to most who own them compared to the regular demountables? Were they intended to be easier to mount?
John, it is the tyres with wire beads and straight sides which led to improvements in wheel rims. They are far superior to clinchers in construction and could be run at lower pressures, resulting in a better ride.
The split rim was one way these tyres could be fitted. Another was the flat base rims and lock rings as used on TT's at the rear, and on trucks right up to the development of tubeless tyres. Both these methods have their drawbacks.
Once well based rims were developed, like the wire wheels on 26-7 T's and all later Fords, there was then no need for split rims, although lockring types continued on heavy vehicles for much longer.
Allan from down under.
The problem is not in the rim spreaders; it’s in the lack of surviving instructions as to its usage. I’ve posted several times on this Forum that you use the single screw leg ‘bird beak’ of the rim spreader on the split end containing the flat steel connecting strap TO REMOVE THE TIRE. Then, after repair and you want to mount the rim, you turn the rim spreader 180 degrees and place the ‘bird beak’ end exactly OPPOSITE the split. Then the ends will simply glide over each other into bolt-mounting position......
George, that's what I did and it worked perfectly. Once again, it did this after being mounted...
Loosened the lug nut closest to the split and got a hammer. Rim sprung back into position perfectly and it's all good again
Glad to see you got it straightened out John. And thank you Allan for the explanation.
(Message edited by JP_noonan on June 15, 2018)