LIONEL 671 motor, gears etc.Need to replace drive line.

[cwburfle]

I did not mean to state that the original poster's turbine definately needed new wheel bearings. I only meant to say that worn bearing might be the reason his repair man was suggesting that he find a new "drive line".

 

[teledoc]

Although K2EDW didn't mention in the original post, he is handicapped, and would not be able to fix the 671 on his own. It would help, if he did tell us exactly what is wrong. The S-2 Steamers have to be one of the easiest to rebuild. The only thing that would possibly require replacing the "driveline" would be worn gears or loose wheels. Other than that, everything else is pretty straight forward for repairs.

[TrainLarry]

Welcome to the forum!

What exactly is the problem with your locomotive?An accurate description will help in diagnosing the problem and give recommendations for repair.

Larry

[cwburfle]

In any given year, parts for the 671 and 2020 are interchangable. The only difference between the two is the number marked on the side of the cab.
The 1946 671R is the same as the 1946 2020/671 locomotives.
From 1947-49, the 671R is the same as the 2020/671 locomotives with the exception of the brushplate. The brushplate is unique to the engine, part #671RM-2. It is different from the 1946 brushplates. The most important difference is the length and positioning of the solder terminals.

As mentioned previous, there are a number of wheel variations between 1947-49.

[cwburfle]

There are two major versions of the 671R that was used in your electronic set. The easiest way to identify which version you have is to look for an e-unit lever sticking out of the top.
The 1946 version did not have this lever, and was originally equipted with a bulb type smoke unit. But you may have a 1946 engine that was converted to use a heater type smoke unit. Lionel sold kits to make the conversion.

The drive train was changed for 1947, as was the smoke unit.
Between 1947 and 1949, the years your set was sold, there were a number of variations on the drive wheels. I don't know which variations came on your engine. If it was mine, I'd want it to be correct.

Regardless: What could be so wrong with your engine that your repair man is recommending a new drivetrain?
If the set is in otherwise nice shape, I suspect that your engine could use new bearings all around. I just finished replacing all the wheel bearings on a 681 turbine, which has a slghtly different chassis. This engine did not need motor bearings.
I have rebuilt a fair number of postwar turbines, I do not recall seeing one with bad or worn out gears.

It is time consuming to replace wheel bearings, and best done with a wheel puller and arbor press / correct wheel cups. Maybe your repair person does not have what is required, or maybe he figures his hourly rate would make the repair too expensive.

If you purchase a used motor and/or chassis, it might have the same wear.

[KRM]

K2EDW,

Without knowing what is wrong with yours tough to say if it can be fixed or not. There are a lot of parts listed on e-bay for those engines. If the motor is the only bad part then why would he tell you to replace the whole driveline?   They are straight forward and easy to work on. For small parts there are a number of people that sell them.

http://www.ttender.com/

http://olsenstoy.com/searchcd2a.htm

http://www.brasseurelectrictrains.com/service/service.asp

Best of luck and enjoy.

 

[K2EDW]

I have a 671 engine and tender (matter of fact the entire electronics set complete with radio transmitter) that I thought was in pretty good condition. I am told by a model train repair man that the least expensive way to fix my train (engine only everything else is fine) is to replace the whole driveline. The shell //outer part of mine looks great. New to the hobby – any idea where I could find a dependable drive unit for a 671. Is the 2020 and exact match ? Thanks