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Thread: Steam locomotive and cars derailing at crossing

  1. Default Steam locomotive and cars derailing at crossing

    Hi every one. I'm having some problems with my Atlas HO 571 Code 83 track 12.5 degree crossing. Some of my cars (all plastic wheels) will jump the rail or rock side to side pretty bad and the new locomotive I got for Christmas will jump the track or have a wheel or 2 jump the track to some degree with every crossing. My 2 GP 40s don't do that and seem to go through smoothly. The new locomotive I got is the A1 OO scale Flying Scotsman from Hornby. What can I do to fix this? Can I modify the existing crossing or do I need to use a different brand crossing? Thanks.

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    I had the same problem. The older plastic wheels have a longer flange that bottoms out on the crossing. I solved the problem by changing out the wheels on my freight cars to metal wheels. I had some locos that had the same problems, but just quit using them. You might be able to deepen the plastic bottom of the crossing so your wheels don't bottom out. But I was afraid I would ruin the crossing so I didn't go that route.
    Greg

  3. #3

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    You have the larger flange wheels on the rolling stock and loco. The code 83 is a shallower cut to the ties and plates.
    Instead of replacing all your wheels, you might consider getting a code 100 crossing and some conversion tracks that take your track from code 83 to code 100.
    If you are good at soldering you can make your own conversion tracks. Lay the track on a glass surface, rail head down and solder the rail ends together. The rail head will be level while the bottom side of the track will be offset.
    Ken
    When ya absolutely positively need model railroad fun, choose the D&J Railroad.


    Visit the progress of the construction of the D&J Railroad at:
    http://www.modelrailroadforums.com/f...-From-Scratch]

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    Quote Originally Posted by gjohnston View Post
    I had the same problem. The older plastic wheels have a longer flange that bottoms out on the crossing. I solved the problem by changing out the wheels on my freight cars to metal wheels. I had some locos that had the same problems, but just quit using them. You might be able to deepen the plastic bottom of the crossing so your wheels don't bottom out. But I was afraid I would ruin the crossing so I didn't go that route.
    Hi Greg,

    Thanks. I've been thinking of swapping out for metal wheels but just haven't pulled the trigger yet. I'm thinking that will help too with some of the wheels getting pinched in the rerailers.

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    Quote Originally Posted by D&J RailRoad View Post
    You have the larger flange wheels on the rolling stock and loco. The code 83 is a shallower cut to the ties and plates.
    Instead of replacing all your wheels, you might consider getting a code 100 crossing and some conversion tracks that take your track from code 83 to code 100.
    If you are good at soldering you can make your own conversion tracks. Lay the track on a glass surface, rail head down and solder the rail ends together. The rail head will be level while the bottom side of the track will be offset.
    Hi Ken,

    Thanks. That may explain why I hear a lot of clackity clack when the rolling stock moves, the wheels are hitting the ties. I do have code 83 track siliconed down. Never thought there would be an issue with the wheels and track size. I think I'll start by replacing the crossing with a code 100 crossing and go from there. The crossing seems to be where the biggest problem is. Next set up I'm going with code 100.

  6. #6

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    Quote Originally Posted by Warpiper View Post
    Hi every one. I'm having some problems with my Atlas HO 571 Code 83 track 12.5 degree crossing. Some of my cars (all plastic wheels) will jump the rail or rock side to side pretty bad and the new locomotive I got for Christmas will jump the track or have a wheel or 2 jump the track to some degree with every crossing. My 2 GP 40s don't do that and seem to go through smoothly. The new locomotive I got is the A1 OO scale Flying Scotsman from Hornby. What can I do to fix this? Can I modify the existing crossing or do I need to use a different brand crossing? Thanks.
    Get down at eye level to watch the loco & cars go over the Xing. Run everything slowly so you can see exactly where the derailments occur. Once you see exactly where derailments occur, look at the tracks for anything the doesn't belong there. Also check the distance between the rail with a track gauge. Do the same thing with a NMRA track gauge.

    Sent from my Moto E (4) using Tapatalk
    Andy Jackson
    Santa Fe Springs CA
    ATSF/LAJ Fan & Modeler

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    Quote Originally Posted by cajon View Post
    Get down at eye level to watch the loco & cars go over the Xing. Run everything slowly so you can see exactly where the derailments occur. Once you see exactly where derailments occur, look at the tracks for anything the doesn't belong there. Also check the distance between the rail with a track gauge. Do the same thing with a NMRA track gauge.

    Sent from my Moto E (4) using Tapatalk
    Hi Andy,

    Thanks. It looks like it starts to jump up at the beginning of the frog and then comes off the track just after the crossing center. It looks like the plastic base is a little shallower than the ties on the track. I don't have a track gauge yet but will check the distance once it comes in.

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    12 degrees is a very narrow crossing. What the prototype does is have moveable points for that crossover. Get an NMRA gauge and check clearances. Code 83 is supposed to be deep flange friendly. Check your wheel gauges also. There could be some fault on the crossover so look for that. If you are able to change that crossing to a steeper angle do that.

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    Quote Originally Posted by dinwitty View Post
    12 degrees is a very narrow crossing. What the prototype does is have moveable points for that crossover. Get an NMRA gauge and check clearances. Code 83 is supposed to be deep flange friendly. Check your wheel gauges also. There could be some fault on the crossover so look for that. If you are able to change that crossing to a steeper angle do that.
    Hi dinwitty,

    Thanks. The gauge is on the list of things to get and I'm looking for a different cross over. Also looking at getting some metal wheel sets. Looking at Intermountain 33" insulated brass wheel sets. By virtue of how I have my track set up I don't think I can go with a much wider cross over. I have 2 oval shape tracks, the inner one is flat, the outer track is elevated and is flat in one area where the 2 cross.

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    Due to inclement weather (6" of snow in SC) I got to stay home and do some honey do's and I got some time to work on the track and on the cross over. I ran a car over the cross over and noticed a very distinct rise in elevation of the car. There appears to be added plastic between the rails at the beginning of the frogs and immediately before and after the center of the cross over. That added plastic is pushing the wheels of my Flying Scotsman up and off the track and comes pretty darn close to doing the same thing with the cars. I'm planning on upgrading my wheels to metal wheels and add some weight to the cars to make them a little heavier. That may help the rolling stock but won't do anything for the Flying Scotsman. I'm thinking of replacing the cross over with a code 100 cross over but I'm curious to know it there are any other cross overs that don't have the added plastic.

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