LouisvilleandnashvilleforeverIn a previous discussion I mentioned I bought a tyco mantua spirit of 76 from a train show
I do not recall if you specified this in your previous post.
Tyco made at least three models that were marketed as "Spirit Of 76".
One was a 4-6-0 steam locomotive, and then an F unit diesel and an Alco diesel. There very well could have been more examples.
It would be a different answer for each of these.
-Kevin
Living the dream.
First of all, I would say that this will require money and effort. If this is for sentimental value, or if you have time and money to spare, that's fine. Otherwise, be prepared to sink in the price of another loco, basically. There is always the shelf queen option, or the dummy engine on your layout.
That being said, if you want to change the drivetrain (the best option if you have the truck-motor type in your engine), the easiest way is to find a donor engine that is similar in type and size. You will basically swap the frame, motor and drivetrain. This page may help you find what the type of engine you have:
https://tycotrain.tripod.com/tycotrains/id22.html
Identify the engine, and find an equivalent Athearn engine. Check the internet for size information. A well-shelved local hobby shop is a goldmine for these projects - especially if the owner is open to help you find a donor engine. You may have do to a bit of grinding to make it fit...
Mel, a member of this forum, has excellent pictures on how to make the shells fit using nuts and screws.
http://cs.trains.com/mrr/f/88/p/277807/3179182.aspx
Simon
In a previous discussion I mentioned I bought a tyco mantua spirit of 76 from a train show
after thinking on it for awhile I figured the best course of action is to remove and replace the existing power torque system with something newer and more reliable
any suggestions on how to do This?