Can a Model T trans. be made to run dry?

[alsfarms]

I am thinking, can a Model T transmission be modified to run dry? I think the main shaft could be drilled for oiling the bushings as well as the triple gear shafts. Has anyone had any experience doing that kind of modification? If it could be made to work dry, like an early REO, what would be the best band material? Thanks for your thoughts or references to a website that has information relevant to my question.......

Regards, Alan

[TheMoneyPit]

Model N, R, and S Ford transmissions were pretty much open to the elements and lubricated using a McCord drip oiler. I dont think it would be that difficult to do it to a T transmission. I'd suggest using cotton bands to keep the heat down.

[Layden B]

Yes N R S and other early Fords as well as other makes of cars had open planitary transmissions but ....they wear rapidly due to dirt and minimal or less lubrication. The real trouble with converting a Model T will be in keeping the high gear clutch lubed. Rather than try to seal it as other early cars did, perhaps you could change to discs that do not require lubrication and will survive or even prefer dry.

[JerryVan]

The NRS transmissions did not run dry, nor were they lubricated with a McCord oiler. The McCord oiler used on R's & S's adds oil to the crankcase and lubricates the transmission tail shaft, (fourth main), only.

The NRS units have a center drum with planetary gears inside as well as oil/grease. They also have a lube hole in the rear, brake, drum where lube can be added for the high speed clutch. These transmssions were NOT one of Ford's better ideas. Operating out in the open, they attracted dirt and wore quickly. There was also no real means to seal them and they fling oil rather well.

Now, why would you want to run a T transmssion "dry"??? Even if the bushings were pressure lubed, the band linings would burn up without the oil bath. The drums would also overheat and crack without the oil to cool them. Additionally, the rest of the engine depends on the T flywheel to whip around oil and lubricate everything else. If you want to run pressurized oil to the trans bushings then just do that, but leave the rest of the oil in there.

[alsfarms]

Thanks for the comments. I have a project, in the works, that should have a planetary transmission. Originally, the proper trans for my project, would have been the early dry type trans. I am thinking of sealed bearings in place of the bushings, dry friction material for the clutch pak and also some provision to oil the triple gears. I would envision building a cover for the triple gears, to keep most of the road grit out of the assembly. I would not be using the Ford flywheel as my engine already has a hefty flywheel. I can also see, for my application, a whole new main shaft that could have a bearing on each end of the trans. So, as you can tell, I am just trying to come up with a near correct appearing planetary trans. to match the original trans that I can not find. Other thoughts from the crowd are anticipated and appreciated.

Regards, Alan