This may help you out
Alco Super 630 Diesel (tripod.com)
Tyco HO Super 630 review - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums
Tyco-Rivarossi Alco C630 Rebuild, Remotor, Retruck | Tyco Depot Train Collectors & Model Railroading Forum. US Veteran Owned and Operated
Tyco Trains (tycoforums.com)
The prototype C-630 was manufatured when Alco was in its death throes. "The ALCO Century 630 is a model of six-axle, 3,000 hp (2.2 MW) diesel-electric locomotive built by the American Locomotive Company (ALCO) between 1965 and 1967. It used the ALCO 251 prime mover. 77 were built: 3 for Atlantic Coast Line Railroad, 4 for Chesapeake and Ohio Railway, 8 for Louisville and Nashville Railroad, 10 (with high noses) for Norfolk and Western Railway, 15 for Pennsylvania Railroad, 12 for the Reading Company, 15 for Southern Pacific Railroad and 10 for Union Pacific Railroad."
The competition was GE's U-30C "The GE U30C is a six-axle locomotive built by General Electric from 1966 to 1976. With 600 units sold, the U30C proved to be a viable alternative for customers who were unable to purchase SD40s from Electro-Motive Diesel (EMD) due to production backlog. Throughout its ten-year production span, the U30C was known for reliability issues concerning its electrical system. However, most railroads were assured of the reliability of the GE Model 752 DC traction motor, and began to place orders for U30Cs starting in 1966."
But the winner was EMD's SD40 "The EMD SD40 is an American 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972. 1,268 locomotives were built between 1966 and 1972."
As was suggested, I suggest you try the sister site to tis one - Model Railroader Magazine Forums - for further information / discussion
Sounds like you have the original version of the Tyco Super 630 (ALCO C-630). It had a Rivarossi motor and driveline for a short time before they switched to the common Power-Torque drive.
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Need to look in a Model Railroader forum. This is a 1:1 scale forum.
Never too old to have a happy childhood!
The Ho scale locomotive chassis has tyco fuel tanks, tyco stamps on the geared trucks but the motor says it is AHM Rivarrosi. The motor is mounted on top of the chassis with a shaft leading to the gear box at the center. The chassis is similar to a Rivarossi U25C but all manufactures stamps are saying its a Tyco. The trucks are metal with a gear system like a Rivarrosi. I need parts fro the front truck and can't find anything on the internet about it. Can some one help? I tried to insert a photo of the chassis but it did not work.
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