Uncoupling track problem?

I recommend running the uncoupler track from separate power.  In any case, the uncoupling track at the 18 volts from the power pack probably draws enough current to shutdown the power pack, as you have noted.

Since you're planning on Legacy, it will depend on your budget.  I run Legacy & DCS with the Lionel PowerHouse 180 bricks.  However, if you want something with accessory power as well, the MTH Z-4000 is a good choice.  If you don't mind adding external circuit protection, you could shop around for a nice used post-war ZW as a start.

Also, isn't the power that come with LionChief sets a DC transformer, and the uncoupler is made for AC?

Take your ammeter and see how much current the uncoupling coil draws.  How much current can the transformer provide?  What is the voltage drop when the coil is activated? You need to know these amounts before you start to figure out what's happening.

Thanks for the replies.  Looks like others threads have also mentioned that the transformer is DC and not AC.

So, This question is for anyone.  If you could get the ZW-L transformer for the same price as the MTH z-4000, which would you pick?

If you can find a ZW-L ($800 MSRP) at the Z4000 ($460) price, let us know!  I'd pick the ZW any day.  But that is because you can control it with TMCC/Legacy handhelds, and it has 4 throttles instead of 2.  But if you are planning on going to Legacy, get the ZW-L.

For the same price, I'd take the ZW-L.  However, they're not the same price.

Here is the scenario, I have a 10% discount for lionel rrc.  Then I also have a 15% off first order code that can be used as well.  They are also running a promo for $100 dollar e-certificates for $75 (25% off).  The 10 and 15 percent off bring the price down to 612.  The cost to get $600 e-certificates would be $450.  Add the 12 dollars and it comes to 462.  Sounds like you guys are saying the ZW would be the better choice if prices were equal.  I just have to decide if I want to spend that much now.

I reported this in a review of the RC sets.  The DC walwart is 2A.  The issue is trying to run the coil on DC.  You can switch to a 18V AC transformer of any size.

Do you have lots of trains?  If is a big step up going from a Starter set and then using the largest transformer made.  Probably the biggest difference in these transformers is output wave form.  You may want to search on the subject to get a better understanding.  Depending on what type of trains you will run, might also be a factor in your decision.  G