mott
Hi-poster
Posts: 151
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1451
Jul 7, 2006 17:29:16 GMT
Post by mott on Jul 7, 2006 17:29:16 GMT
Finally 1451 can be classed as a "runner". Completed 3.9 miles on the Colchester SMEE raised track today. Some development work is still needed. It didn't really want to do very much work unless there was a minimum of 50psi in the boiler and maybe some parts of the machinery are still a little tight. Possibly the piston rings - o - rings could be accounting for the drag. They were brand new and had not been used until today. Acceleration was excellent but on the climbs on our track , 1:66 and 1:90 it struggled and definitely could not have pulled any passengers - however not bad for starters. On a flat track it would have done much better.Disappointingly I could not get the injector to pick up even when supplied with cold water from the auxiliary tank on the "ride on". It would pull through a terrific jet of water but straight out of the over flow or a blast of steam. More work to be done there. I will give the loco a couple more good outings before getting too concerned about performance. I was delayed nearly a week in steaming when the setscrew holding one of the dieblocks to the valve extension broke. On examination it looked cheap and weak. I made a silver steel one which hopefully will last. This an imprtant item as it takes the whole of the stress arising from the slide valve being pressed against the ports with up to 50/60 psi of steam. Has anyone else had this sort of failure?Mott
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1451
Jul 7, 2006 20:09:08 GMT
Post by Phil Sutton on Jul 7, 2006 20:09:08 GMT
Well done Jon,success at last!Lets see some pictures of 1451 hard at work. ;D
Phil
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1451
Jul 8, 2006 19:21:55 GMT
Post by Donald G on Jul 8, 2006 19:21:55 GMT
Well done Jon, keep perservereing and you will get there, and it will be all worthwhile
Donald
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1451
Jul 11, 2006 13:12:21 GMT
Post by heyfordian18 on Jul 11, 2006 13:12:21 GMT
Congratualtions Mott. I found that 1452 was very stiff until it had run about 10 miles, but even now, anything less than 40 psi on the clock and it is struggle to keep moving. I have not had the die block pin shear, but one did work loose when running, and was a difficult job to clean, reassemble and get threadlock in the right place! regards, Heyfordian
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mott
Hi-poster
Posts: 151
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1451
Jul 12, 2006 18:59:45 GMT
Post by mott on Jul 12, 2006 18:59:45 GMT
Further, 1451 has improved considerably with a good sessions today.If you keep the fire high and pressure above 50psi she will climb mountains. Lots of power. After a while performance started to slip and eventually I came off.When I got home and put on my chimney sweeping gear I found that the bottom 6 tubes were totally blocked.Clinker had got in and sealed them off. Should I change coal from anthcartite to steam coal? If I opened the regulator too far there was steam out of the chimney which made me wonder whether the o rings were giving way but the key was to keep the steam pressure up.and the regulator just cracked and away she went. I got a round of applause for the Wed Wrinklies!!Finally they believed a 14XX could steam.Mott
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1451
Jul 13, 2006 17:25:43 GMT
Post by heyfordian18 on Jul 13, 2006 17:25:43 GMT
We had anthracite at Northampton Society last year, and a lot of engines quickly filled the smokebox with unburnt particles. A few members experimented with the coal beans sold by Signal Fuels from Ripley, which seems to burn through rather than explode into small particles as the anthracite does. I can run 1452 on the coal beans for up to 4 hours before the tubes are buried by ash in the smokebox. Give it a try. regards, Heyfordian
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mott
Hi-poster
Posts: 151
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1451
Jul 13, 2006 18:01:15 GMT
Post by mott on Jul 13, 2006 18:01:15 GMT
Thanks Heyfordian, good advice. I will follow up on that. I just happened to have acquired some steaming coal when I last visited Maxitrax and have not really used it up until now.On another aspect I get really worried about important nuts and bolts coming loose during running. We mentioned the dieblock set screw - I checked and could get some movement from the second one having replaced the first but at the end of this last run out it was the small end bearing pin which came out on the bench. One had come right out and the other was slack.In both cases they had been properly loctited. I'm really beginning to have reservations about the efficiency of loctite on these small nuts and bolts when they have to take some work. I suppose the reality is that these locos are optimised for easy assembly rather than frequent use. I remember Debbie saying to me" put staylock nuts on where ever you can". No doubt she had good reason for saying so.Cheers Mott.
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Jason
E-xcellent poster
Posts: 204
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1451
Jul 13, 2006 18:09:12 GMT
Post by Jason on Jul 13, 2006 18:09:12 GMT
Hi Mott Glad to hear your engine is running now, have you got any photo's to share with the rest of us of 1451, as i am interested in seeing your engine ? Cheers Jason
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mott
Hi-poster
Posts: 151
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1451
Jul 14, 2006 7:28:50 GMT
Post by mott on Jul 14, 2006 7:28:50 GMT
Jason and Phil, Now that 1451 is going well I am arranging a photo shoot next week -(after I have polished up the paintwork over the weekend) and will put a copy up for you to see.Mott
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Jason
E-xcellent poster
Posts: 204
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1451
Jul 14, 2006 15:20:38 GMT
Post by Jason on Jul 14, 2006 15:20:38 GMT
Hi Mott I look forward to seeing your pics, looks like the weather will be good for your photo shoot , maybe you could get one of the lady members from your club to drive while you take the photo's !!!
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1451
Oct 1, 2008 10:15:38 GMT
Post by Chris Vallender on Oct 1, 2008 10:15:38 GMT
Thanks Heyfordian, good advice. I will follow up on that. I just happened to have acquired some steaming coal when I last visited Maxitrax and have not really used it up until now.On another aspect I get really worried about important nuts and bolts coming loose during running. We mentioned the dieblock set screw - I checked and could get some movement from the second one having replaced the first but at the end of this last run out it was the small end bearing pin which came out on the bench. One had come right out and the other was slack.In both cases they had been properly loctited. I'm really beginning to have reservations about the efficiency of loctite on these small nuts and bolts when they have to take some work. I suppose the reality is that these locos are optimised for easy assembly rather than frequent use. I remember Debbie saying to me" put staylock nuts on where ever you can". No doubt she had good reason for saying so.Cheers Mott.
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1451
Oct 1, 2008 10:35:02 GMT
Post by Chris Vallender on Oct 1, 2008 10:35:02 GMT
Hi One for Mott You refer to Debbie saying "use staylock where-ever you can on the motion" Is staylock like nylock ie a nut with an insert? I cant find staylock on google. I am planning to use nylock nuts on the motion wherever they fit Thanks Chris
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mott
Hi-poster
Posts: 151
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1451
Oct 5, 2008 7:07:53 GMT
Post by mott on Oct 5, 2008 7:07:53 GMT
Hi Vallender, Yes I guess the two are interchangeable or even the same thing.I got a supply of s/s ones from the local yacht chandler. Mott
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1451
Oct 6, 2008 9:20:28 GMT
Post by Chris Vallender on Oct 6, 2008 9:20:28 GMT
Thanks, Mott, I thought so . I found some 3mm on E bay
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1451
Nov 23, 2008 12:23:08 GMT
Post by mowerman1 on Nov 23, 2008 12:23:08 GMT
I too have had a little end bolt fall out on my Winson 14xx while track running with unpleasant results. The loco suddenly locked solid and slid to a halt, luckily without derailing. The con rod had thrashed about and hit something hard, completely crushing the little end and bending the con rod. I managed to get a new con rod from Modelworks while they were still around. This was a bit different from the original, but easily modified to fit. A friend at my club gave me some 6BA "aircraft style" nuts ( as he called them). These were too deep to work effectively with the original small end bolts, so I had 2 more bolts made up with slightly longer threads. I've had no problems since (fingers crossed).
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