With a clean circle of track set up and the transformer connected, it’s time to put the locomotive on the track and take it for a spin. Be sure to put one car behind the locomotive but don’t make a whole train.
Lionel 3927-21-1 Spacer Washer - The 3927-21-1 spacer washer is used under the 3927-21 2nd cluster gear in the 3927 track cleaning car. You have just taken your track cleaning car apart in an effort to clean it and have it operate better. You put it back together and now the washing head gear binds? Unfortunately this washer tends to stick to the bottom of the 2nd intermediate gear when it is removed, then it disappears.
You look in the Lionel repair manual and this washer isn't mentioned. Now you have the answer.
$59.25 3 Bids Sold, $17.50 Shipping, 30-Day Returns, Seller: (22,005) 100%, Location: Mesa, Arizona, Ships to: US, Item: 19 FOR YOUR CONSIDERATION is this LIONEL PW 3927 TRACK THAT IS IN GOOD CONDITION AND HAS BEEN CLEANED UP AND CHECKEDOUT. NOTHING IS BROKEN OR MISSING, IT COMES WITH AN EXTRA SPUNGE CIRCLE AND TWO EXTRAWIPES. YOU PICK ONE OF YOUR ENGINES TO PULL YOUR TRACK CLEANER AROUND THE AREAS THATYOU WANT CLEANED. BE SURE TO CHECK OUT THE PICTURES PRIORITY SHIPPING IS $17.50 INCLUDING YOUR TRACKING NUMBER & INSURANCE CHECK OUT MY EBAY STORE Condition: Used, Condition: This Track Cleaning Car is complete and runs very well, the left side cab numbers have a few smallvoids and the bottom of the bottle carriers have small areas of bubbled surfaces and etching. Probably caused by some too strong cleaning fluid., Modified Item: No, Country/Region of Manufacture: United States, Vintage (Y/N): Yes, Material: METAL CHASSIS w PLASTIC SHELL, Year: 1956 - 1960, Color: Multi-Color, Gauge: 0 - GAUGE, Brand: LIONEL, Non-Domestic Product: No, Grading: Very Good, Control: Transformer and on board switch, MPN: 3927, Type: TRACK CLEANER CAR See More.