drew13

Ok do the loco is the Hornby alstrom pendolino. I have a dcc concepts back to back gauge and the wheels are all set correctly to that. Factory were all to narrow. I bought a peco sl-92 and the problem is gone.

Im using Hornby standard left hand points. But ive getting nothing but de railment issues at the frog. Does anyone know of a video on how i sand and modify the point to work correctly

So ive been working at this on and off and have come to the conclusion that i wont ever be running this loco full apeed anyway so the last 10% speed is not a problem. I will adjust the cv to lower the top speed so it never reaches the threshold of derailment.

thanks guys

im using 4th radius double curves. since all the adjustments it does run alot better, just isnt capable of successful full speed operation. but until i get started on my loft layout im stuck with the track i have. ill be using flex track with much greater radii. ive thought about banking the corners also to see if that helps with the rolling outwards at high speed. ill experiment with that at some point properly

Ok so a little update for today. I slight loosed off the screw under the front bogie of the drive car which aloud a little more movement. Im still getting the same problem at the 85-90% power setting. Its ad if the power car is rolling outwards as its starting to turn into the corner and momentum carries it over and off the track. Like a lorry speeding round a corner and topling over. I tried then to add more weight lower down inaide the body on the chassis but this didnt help. I could add more but i dont see the point in adding loads and loads of weight

So i tested again today with the changes, and when i get to around 85 90% power it derails ive noticed that at high speed it rolls outwards like a lorry going round a corner to fast. And that was just the drive car. I tried adding a little weight lower down inside to lower the centre of gravity but the problem stayed the same

Yes i tried the drive car alone and it did the same thing. I double checked how much the bogie could swing and it seemed to be slightly less than the dummy car. So i slightly loosened the screw underneath the bogie anf it turns a little more now. So ill be testing it tomorrow and i will get back to you. If i can help anyone else from my tests then im pleased to have done it

ok so im new to the hobby and i like to get my hands dirty. i recently bought the RTR Hornby Virgin alstrom Pendolino set. i was really impressed with the set when i opened it and couldnt wait to use it. but i soon noticed that the drive loco would derail alot. i got frustrated and put it away. but i had a thought, why not work out the problem and fix it myself. so i began to try and work out what was going on. i tried different directions and speeds and still it happened. in the end i decided to buy a back to back gauge from DCC concepts. great little bit of kit for less than £10. i began to check every axle on both of the carriages i got in the box and the extra one i purchased, plus the dummy and drive car. and i soon found out that not a single axle was the right width apart. so an hour of pain staking adjusting which left my fingers really sore and i got all the axles to the right setup. i then installed dcc decoders in the drive and dummy car and tested the 5 car rake, still getting the same derailment. it gets to about 80% speed and throws itself off the track at the start of a corner. this is wether the drive car is alone on track or with the rake attached. i went out and replaced the 3rd radius curves that came in the set with 4th to make it easier, but still the same thing. the only thing i have left to do is tack the track to my 8'x4' plywood board and see of that makes a difference. ive considered slightly banking the corners inward like in prototype to see if that helps. ive seen this is a common problem, ive check couplings and they seem fine. im really not sure what to try next but i hope to keep you posted and make this diary of my mission.

Ok so that hasnt solved the problem either. The track isnt tacked down yet but it on a hard flat surface of ply. If i tack the track down and eliminate any movement in track and make sure even though its new setrack that its clean and that doesnt solve the problem what should i try next to logically eliminate posibilities. ive also tried the loco as a 5 car rake and as the drive car alone and the problem is the same. at high speed its as if it stops turning into a corner and goes straight off the track.

Ok guys sorry its been a while. I measured the back to back of one axle and it was out. So i decided to purchase the back to back gauge for 00 gauge from dcc concepts. Cost me a little less than £10 and arrived in less than 24 hours. I checked every axle and everyone was out. So i spent an hour removing each one and adjusting until the correct dimension was achieved. Ive check all the couplings and they seem fine. Ive added a dcc decoder to both dummy and drive car now. I will test the loco again tomorrow and see how it performs

i can do that today yes. ill do a few experiments with the position of coaches and the drive unit alone and see if there are any similarities or differences and get back to you.

gainsborough lincolnshire. aegir sounds familiar yes down the river trent

Hi guys im new to posting on here. I have a Hornby pendolino alstrom dcc ready version that seems to have a derailment issue. Travelling with the drive car at the front seems to be worse. The front bogey seems to under rotate and de rail. I cannot seem to find an issue but im rather new to the hobby. It derails quick and at slower speeds in this direction. But with the drive engine travelling to the rear it seems to travel much better with less derailments, but it still doesnt get rid of the problem. Any help would be great as id like to learn to fix problems myself rather than sending it away to be fixed and learning nothing in the progress.

Hi i recently got back into the hobby. I have 00 gauge. Looking to build a modern layout. Hope to share with you as i go