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Model Forum / General / Railroads / July 2005Mainline 2251 - DCC?
Hi guys, Another DCC question I'm afraid! I am currently converting my locos to DCC control, so far no major problems and I have an ever growing fleet of chipped locos - as time and money (!) permit. I have an old Mainline 2251 Collett goods 0-6-0 loco, with the split frame and tiny pancake type motor. It is a pretty good runner still, but looking at it I cannot see a way to chip it. Is the Bachmann chassis for their 2251 a good fit to the mainline body? Is the Bachmann chassis any easier to fit a chip to? Where can I find a Bachmann 2251 chassis? They don't seem to do them in the online and off-line shops I've tried! Thanks David > I have an old Mainline 2251 Collett goods 0-6-0 loco, with the split frame > and tiny pancake type motor. It is a pretty good runner still, but looking > at it I cannot see a way to chip it. Any of the Bachmann split chassis locos are a veritable bugger to chip. It involved completely dismantling the chassis to ensure that brush housings are isolated. > Is the Bachmann chassis for their 2251 a good fit to the mainline body? Is > the Bachmann chassis any easier to fit a chip to? > Where can I find a Bachmann 2251 chassis? They don't seem to do them in > the online and off-line shops I've tried! The new Bachmann chassis should be much easier to fit although from memory it is not DCC ready. I've got one to do in the near future and if it's as easy as their Blue Ribband 0-6-0PT it will be only a half hour job. Why not sell the Mainline loco and buy a complete new Bachmann version. It shouldn't cost you too much to update in that way, and you find that the new chassis runs very much better than the old one. John. > Hi guys, > Another DCC question I'm afraid! [quoted text clipped - 14 lines] > Thanks > David If you are brave you need to disassembly the chassis and remove/insulate the connections between the motor brushes and the chassis. And then wire up the decoder before reassembling. Had to do this with the Bachmann Lord Nelson. It was easier on the Mainline 4MT, no need to disamble the chassis. Good Luck Chris >> Hi guys, >> Another DCC question I'm afraid! [quoted text clipped - 24 lines] > > Chris Thanks, I have a Bachmann Lord Nelson too! I think the biggest problem with that one will be where to house the chip - did you put yours in the tender? David >>> Hi guys, >>> Another DCC question I'm afraid! [quoted text clipped - 30 lines] > > David Yes had to put the decoder in the tender as there is not much room in the loco. Otherwise you need to cut part of the chassis off to make room. Chris DJO, I would be inclined to take John Turner's advice: dispose of the Mainline version and go and buy a proper Bachmann version. I blew up two decoders trying to chip my Mainline 2251. Mine was one of the first types where the motor was an integral part of the split chassis. I believe that the later types had a self-contained white plastic cased motor which is quite easy to chip. I don't know what was going on with my loco, I insulated it everywhere but the moment I put the body back on some short circuit occurred and blew the chip. Having done 35 locos before, I am pretty proficient at doing these things! In the end I gave up. The model is so poor when compared with the Bachmann version. I put it in the showcase as the one and only loco that I haven't been able to successfully chip. Heap of c**p. Graham Plowman > DJO, > [quoted text clipped - 15 lines] > > Graham Plowman Thanks Graham, What I think I might do is keep it, but leave it unchipped as an occasional runner using loco id 0. Its only a GWR loco after all, not as if it is a proper engine, wrong shade of green! ;-) Djo > What I think I might do is keep it, but leave it unchipped as an > occasional runner using loco id 0. I don't recommend this at all, and have heard a number of tales of unchipped locos burning motors out when used in this way. John. >> What I think I might do is keep it, but leave it unchipped as an >> occasional runner using loco id 0. [quoted text clipped - 3 lines] > > John. I second this. I have had two Lima pancake motors stop and issue lots of smoke when running as loco 0 on a Lenz system. They don't seem to want to run again after that........ ROB > >> What I think I might do is keep it, but leave it unchipped as an > >> occasional runner using loco id 0. [quoted text clipped - 9 lines] > > ROB The problem is that the DC motor has to absorb the full 15-18 volts AC. Larger motors and metal encased motors will usually disipate that much heat, but the smaller motors such as N scale or small HO models which use N scale motors heat up very quickly and smoke. Lima pancake motors (I haven't tried them on DCC and now won't) don't have any metal around them and so, I imagine, just continue heating until the inevitable! Regards, Greg.P. > >> What I think I might do is keep it, but leave it unchipped as an > >> occasional runner using loco id 0. [quoted text clipped - 9 lines] > > ROB This is the problem with all electrical equipment. It operates on smoke which has to be kept inside. As soon as you let the smoke out it will stop working.  SignatureRegards John Mechanical Engineer > "Robert Flint" <R.C.Flint@nospam.thanks> wrote... >> "John Turner" <nospam@nospam.invalid> wrote... [quoted text clipped - 12 lines] > smoke which has to be kept inside. As soon as you let the smoke out > it will stop working. My Bachmann J72 has a bad smoking habit. SignatureMartin S. |
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