I just received the original Marklin TEE VT 11.5 train set 8873 and matching coach set 8793 from a dealer’s old inventory. For a train set that has been stored for almost 20 years and probably on its side I expected HOS (hardened oil syndrome), I wasn’t disappointed! Not only did the trucks not move freely, but the loco shells were cemented onto the chassis. With gentle nudging on each side of the shell I was able to eventually work them free, but the window glazings came too! Typically HOS is evidenced by an opaque tan clay like substance from the oil drying out, but this time it was an all over clear residue that even leaked onto the outer chassis thereby gluing the window glazing tight to it. The motors were even glued to the chassis frame thus began the repair and restoration work that started with soaking all unpainted surfaces in a mild solvent otherwise known to this blog as ‘Original’ Windex (blue) followed by the pain staking process of using no scratch toothpicks to gently loosen the rough crust of old dried up oil. Usually bringing back an old Marklin Z loco is straight forward and easy, but this time was very unusual due in part to too much of the wrong oil used and then long term storage on its side. Patience is expressly stated for the best results and lots of toothpicks. After moving points are cleaned up use new Labelle oil (viscosity for Z only) sparingly and enjoy the fruits of your labors. Window glazing was reattached using 5 minute epoxy. *Use only 5 minute epoxy when reattaching plastic parts, it is the only glue for tough durable repairs that don’t damage plastic. ****Avoid plastic cements like Faller ‘Expert’, they will melt your loco and coaches.*****************
Siding 1: The shells of both end units on all VT 11.5’s and versions should easily slide off using gently pressure with a small screwdriver placed in the car end located in the coupling hole (*remember to remove coupler before attempting to remove shell) if it is sluggish work both sides with very gentle pressure to avoid cracking or marking shell housing.
Siding 2: 8873 greatly benefits from upgrading the original 3 pole motor to the new E211903 5 pole motor. Because each end unit is powered this train set will require 2 motors with an approximate cost of $100 total, but you can sell the old motors on Ebay for $20 each.
Siding 3: Store your Marklin Z locos on their wheels otherwise the oil will pool inside the loco and not out the bottom. This is an important rule for long term storage.