I have older Third Rail Steam engines. I searched but didn't find any installs on older TR steam that didnt come with traction tires. Anyone have success with machining the necessary grooves? Or is there an alternative traction aid?
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You could try Bullfrog Snot. It's a gel you apply to the drivers.
IMO Bullfrog Snot is crap! I'd find someone that will add the traction tire grooves if you think you need more traction.
Frank Timko machined traction tire grooves on my Lionel postwar F3 units some years ago.
timkorepairdepot.com
Unless your wheels have grooves for traction tires, BFS won't help IMO. I agree.......find someone to machine grooves into the drivers and make sure they are wide enough to receive modern traction tires. If the grooves are too narrow, you'll have trouble finding tires, as is the case with the older Williams brass locos. As Marty Fitzhenry used to say, "always replace a tire with a tire." The only time I will use BFS is in the case of my Williams locos. It isn't nearly as good as a tire, but it's better than nothing.
Thanks guys. Since I havent taken one apart. Can the whole drive axle be removed or do need to pull the 2 wheels? Thanks.
DON'T pull the wheels unless you have the skill to quarter them when you put them back! On these model locomotives, one axle is powered by the gearbox, and the rest are powered by the side rods. The crankpin locations have to be properly quartered, or the siderods cannot transmit the power, ie they will jam up.
The entire axle should come right out. I have a few 3rd rail 2 rail locos, and the bottom plate on the frame comes off allowing the axles to be removed. The gearbox has to disassembled to get that axle, but it should have screws on the bottom side.
However, you still have to remove the rods. and then reinstall them. These have to go back accurately becasue the side rods transmit power to the non-geared axles.
All that aside, I can pull 25 2 rail cars on level train with my little 3rd Rail H6 2-8-0s. If the 3 rail version will do the same, why do you need traction tires?
@prrjim posted:All that aside, I can pull 25 2 rail cars on level train with my little 3rd Rail H6 2-8-0s. If the 3 rail version will do the same, why do you need traction tires?
He may have grades on his layout. Obviously, since he's looking to add traction tires, he must think he needs them.
I have 1 1/2 % grades on my mainline, and that loco is still good for at least 15 cars on the grade - which I think is plenty for an H6 on a home layout.
I wonder if his cars are very heavy or something.
I think traction tires just reduce pickup contact and therefore locomotive reliability in 2 rail.
@prrjim posted:I think traction tires just reduce pickup contact and therefore locomotive reliability in 2 rail.
Since he's posting in 3-Rail, I suspect he has different requirements.
Sometimes I do run 30-40 cars. Friends large layout I'm running on has grades and curves. Running lionel Big Boys and Cab Forward seem to work very well. The last big train had 106 cars of all weights. We just kept adding cars to test the locos. So I'm thinking my Third Rail locos might have similar results. I'd like to use them.
I've done 70 cars behind my VL-BB, now I have two of them to double-head, time to go for a record.
Another option, add weight to the shell,….I like those sticky back tire weights in strips. You’ll be the hero, and not the zero if you can muster the drivers and work through the slip to get your train a ‘movin……..then you’ll be an engineer, and not just a remote holder,…😉….just my .02 cents,….my converted older Lionel scale Mohawks have no tires, and there’s nothing more dramatic ( and entertaining) than working through the slip on 50-60 car drags, ….snorting, huffing, smoke everywhere,…..cool stuff,……I’d only add tires via machining if there’s just no possibility to get moving,…..
Pat
Working through wheel slip. Hmm hadn't thought of it that way?
@harmonyards posted:Another option, add weight to the shell,…
Pat
Do you usually remove the boiler and attach the wheel weights upside down when you do that?
Thanks,
John
You can try Bullfrog snot. I have had good luck with it on Lionel Post War nickel drivers w/o magnetraction. You only need a thin layer, apply with the engine running upside down for an even application. Its no good as a replacement for rubber tires on an engine with machined grooves. Worth a try and you can remove it if it doesn't work for you.
I have machined wheels too but you’ll need a lathe to do that.
Pete
@Craftech posted:Do you usually remove the boiler and attach the wheel weights upside down when you do that?
Thanks,
John
When I’m converting brass 2 rail to 3 rail, it’s apart anyways, so the boiler is removed, ….I build up from the base of the boiler up, …concentrating the weight towards the gear box as much as possible,…..that’s why I like the stick on tire weights….they can be divided up into sections to fit in places…..once I’m happy, I go back and mix epoxy and put it in a syringe, and coat the weights to lock them down….I do put one strip at the top of the boiler if space is tight…..but I try not to, as I don’t want to get top heavy and have a lay over ….another trick I do is BB shot for pellet guns and what not, ….they have a lot of weight for their size, mixed in epoxy and turned into a slurry, it’s easily poured into a boiler shell and manipulated into position…..I just did a brass H10 Mikado with a MTH chassis, and I was able to dead match the die cast shell’s weight with this method…..
Pat
I'm going to agree with Pat; traction tires are a PITA enough on engines that were designed for them; I personally wouldn't add that feature to an engine that can run without them. I would certainly try some additional weight first...but that's just my opinion. 🙂
Mark in Oregon