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Thread: BLI ES44 slow down in curves

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    Default BLI ES44 slow down in curves

    I have 6 BLI, ES44AC, AC6000, all work perfectly except one, which slows down strongly in all the curves where they pass. As if a very strong resistance is exerted on the trucks. Others do not have this problem.
    Any idea to solve this problem?
    Thanks for your help

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    The smallest curve, at each side, is Kato R1 8 1/2". But it also happens even on larger curve.
    I know BLI ES44AC and AC6000 are recommending for 9.75" minimum radius but the others don't have any issues don't slow down on curves.

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    Do you have an NMRA or MTL wheel gauge?
    Maybe one or more of the axle/wheels are too wide and out of gauge???
    The Little Rock Line blog


    “Never argue with an idiot. They will only bring you down to their level and beat you with experience." George Carlin

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    No, I don't have a wheel gauge.

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    Get one. It's like one of the couple-three basic tools that every model railroader should have.

    -Mark

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    UNTIL you get one....if you have a Micro Trains car, take one of the wheel sets out of one of the trucks and hold it against one of the axles on the locomotive.
    This should show if the wheels/axles are out out of gauge.

    But an NMRA gauge should be in your tool box.


    https://www.modeltrainstuff.com/nmra...xoCYrMQAvD_BwE
    The Little Rock Line blog


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    Quote Originally Posted by Spookshow View Post
    Get one. It's like one of the couple-three basic tools that every model railroader should have.

    -Mark
    The other two are scale ruler, truly indispensable, and the third is anything sharp you can cut yourself with. ...

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    Quote Originally Posted by Paul Schmidt View Post
    and the third is anything sharp you can cut yourself with.

    Would this work Paul?
    The Little Rock Line blog


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    I will buy a gauge with my next order. Thanks for the advice.

    Concerning the trucks. I checked them. I tried them on rails and pushed them with my fingers. Even with an impulse, each one stops a few inch/centimeters after.
    For sure, it doesn't wheel well, there is obviously a big resistance or friction that I do not identify. Not only in curve but also on straight track.

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    Sounds strongly like a wheelset is too wide. Once you get your NMRA gauge and determine which one, the flat side of a small straight-slot screwdriver works well to gently move the offending wheel into gauge.

    If you wish, the smallest touch of AC glue on the backside of the wheel/axle joint will help keep it in place.

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    I'll go today to my retailer for buying a gauge. I'll bring the trucks. Maybe he could help me.
    Thanks for your answers and help. I'll tell you...

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    So, I come from my retailer. He took a lot to the trucks, tried them on his tracks, push them, saw there is a resistance and said "I don't know". I bought the NMRA gage and came back home.
    I checked the trucks withe the gage, nothing seems abnormal. But they really don't wheel well.

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    I presume that the other BLI trucks roll freely? On this unit, do both trucks roll poorly or is it just a single truck? At this point, if it were a Kato/Atlas/FVM unit, I'd probably completely disassemble, clean, and reassemble to see if the resistance can be reduced.

    Unfortunately, I don't have any BLI units so I can't provide any advice on their disassembly or operation.

    Sam

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    This afternoon, I’ll disassemble and clean the trucks. I’ll send an email to BLI, in case of they know about this issue.

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    Quote Originally Posted by Elwood View Post
    This afternoon, I’ll disassemble and clean the trucks. I’ll send an email to BLI, in case of they know about this issue.
    And the beat goes on. ... We shouldn't have to do this kind of investigative-remedial work with an out-of-the-box locomotive costing between $150-$300.

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    Quote Originally Posted by Paul Schmidt View Post
    And the beat goes on. ... We shouldn't have to do this kind of investigative-remedial work with an out-of-the-box locomotive costing between $150-$300.
    The worst part about this, is it's becoming almost commonplace.
    Instead of protesting this, everyone gets shunned when they do. So the manufacturer doesn't get the message and just keeps sending out half-a$$ed stuff and we just keep fixing it.

    Que Sera Sera .....Sorry I'll get off my soapbox now.
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    After a first disassembly and reassembly, I add grease on the gearwheel, put everything in place carefully and it wheels a little bit better. Surely, it is not smouth as it should be, there is still a little resistance. Sometimes we can feel a hard point with the gearwheel. I have to test it on the layout...

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    How do the metal chassis contact strips look? If bent such that they're pushing down too hard or if they're crooked or something, I suppose that could impact performance in curves.



    -Mark

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    Quote Originally Posted by Elwood View Post
    Sometimes we can feel a hard point with the gearwheel.
    Is there flash in the gear perhaps? Do the gears look sharply molded? Any irregularities?

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    Difficult to say. I don't see anything abnormal.
    But after the reassembly, I am currently just trying the locomotive, and it wheels very good. As better as the others. Everything seems to be fixed. It was probably just a gearwheel not in place as it should have been.
    Thanks a lot for your help.

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