This is How it Works.

I have test run the engine on the bench and have made changes to both the pictures and notes here! When I started I had a 74 to 1 gear reduction. That was to much so I have reworked the drive train to give me about a 20 to 1 reduction. I will be installing the radio and hooking up the throttle, transmission (to allow shifting from forward to reverse), the onboard starter system along with the batteries, receiver, fuel tank and exhaust system. This will all be on page six very soon. This engine will be bare untill I make a hood and cab for it. That will be next week maybe. I will take a week off from this project starting Monday April 12, 1999. My younger boys will be here (they live with their mom) and we will be running cars at the track or running the trains. They like to opperate the cranes on the layout. So I will update once more before I take the week off.

Thanks and Enjoy!

If you have comments Good or Bad Please feel free to share them.


Here you will find lots of info on how my design works. I will be short and to the point. If you have any questions Just ask.


Click on the thumbnails and Enjoy!


Here is an overall look at how the system works. Notice the two circles. The circle on the right shows the .15 glow engine and the transmission that will allow me to shift from forward into reverse and will also be the first of tw0 stages of gear reduction. I will get a ratio of 9 to 1 at the transmission. Looking at the larger picture you will see the transmision and above it is a front view of the gears. (the small colored circles) Notice that on the right there is 3 gears and on the left there are 2. This is how I get reverse. Look close and you will see at the bottom of the transmission there is a disk with a pin going through it and sticking out about 1/8 of an inch on both sides. This disk is keyed on the bottom shaft (or the output shaft of the transmission. (the gears spin on bearings).It is shown in neutral but if moved forward so that the pin can contact the notch in the gear it will lock the gear and the train will move forward when the engine rpm is raised enough to engauge the clutch. If moved back so that it contacts the other gear the train will move in the other direction.

The circle on the right shows how the second stage will work. The second stage (gears colored dark blue and lite blue). These are beveled and will work like the gears in the trucks except one gear is larger than the other and will give me a ratio of 2.2 to 1. At this point I have about a 20 to 1 ratio. There is no futher gear reduction in the drive train of the engine. From here the power is sent through the pivot point of the front truck by using more beveled gears. The power goes to the front truck and then on to the rear truck. Now take a look at the Trucks and you will see more beveled gears. The only real difference is that they are all the same size.


This is the front truck rear wheel or "drive unit A". Looking from left to right. Notice there is a wheel in green and next to that is a bearing also in green. Next is the gear case in blue. On the other side is a beveled gear in red. (The gears have been pressed on the axle). Then another bearing. Then also in red is a pully that is used to connect the front and rear axle on each truck. Then the other wheel. Now at the top of "drive unit A" you can see the drive cup. it also connects to the axle with a beveled gear and this is used to get power from the front truck to the rear truck. At the bottom of "drive unit A" there is yet another beveled gear. This one is used to get power from the third gear unit which is on top of the frame and the last stage of the gear reduction.


This is the front axle of the rear truck or "drive unit B". It is used to take power from "drive unit A" using a drive shaft. The power is sent to the rear wheel of the rear truck using the belt.


This is "drive unit C". This unit has only the bearings an axle a pully and the wheels. One is used on the front of the front truck and one is used on the rear of the rear truck.


By now I think you have an idea on how my Train engine works. I hope to have it on my layout for a test run around the 11th of April. If all goes well I should have it done by then. The tough part is over I think. (I hope anyway!) If you have any questions Just ask. This is something I have designed and am building on my own. I have no plans. Just ideas.. If you know of anyone that may be building other engines or projects like this Please let me know how to contact them. I enjoy talking to others in this Great Hobby.

Thanks for your time and I hope you find this project to be very interesting.


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