Only recently receiving my sound equipped Intermountain SD40-2 snoot from MBK I thought I should at the very least give it a run. So after adding the chassis detail like on another thread I took it to a friends layout today to do just that.
Had to get rid of the blackened wheels and even then!
Well it would not run correctly, it would only go in fits and starts, and by pushing down on the cab seemed to help. Dam I thought I had done something wrong so off with the cab to see if we could get it to perform as expected.
Took off cab, ran beautifully, so what have I done, nothing that we could see.
The sound decoder when touched ever so lightly rocked in all for fixing locations in the frame cutting off the power. (well we have all seen this before with Atlas SD50/60s).
So armed with a really good soldering iron, young Brendan (he has better eyes than me) added a very small amount of solder to the front two tabs of the decoder and voila no more rocking.
Loco fires up like it should with and without the body fitted and now runs as it should.
Story a loose fitting ESU Loksound decoder in the frame now fixed.
Rod.
