125_driver

10 hours ago, adb968008 said:

Heres the motor in a quick comparison of mine, top to bottom…

 

HST

87

Hattons 66

Dapol 73 (the loose one).

 

ignoring the flywheels, the dimension spec is the same (and a fairly standard motor size used by several companies) that fits this spec..

https://www.aliexpress.com/item/1005002670420818.html

 

for a few pence extra getting the option with flywheels, and swapping them (and the plastic bearing cup that just pulls off ) from your HST Dud motor (putting the redundant flywheels off it into your spares box) is well worth it, as those flywheels are worth a fiver on their own.

 

Dimensions are: 23.9 mm * 32.9mm * 18.4 mm

The link above is 9800rpm, ive seen these goto 21000rpm but think this would do your job.

my gut feel is they are all the same rpm, but the differing speeds is down to gearing.

 

if your looking for a drop in replacement with flywheels fitted directly comparing 87 to HST length over flywheels is:

73mm for the 87

74.6mm for the HST

 

with only 0.8mm difference either flywheel side i’d be surprised if the 87 wasnt a drop in replacement fit, you can always nudge the plastic bearing cup out a tiny amount. 

Hope that helps.

 

 

The important thing is the dimensions, Heljan, Mehano use a different spec motor, but same dimensions, ive used an Ali-express one in a Heljan 26 easy enough, and found it a slightly faster turn of speed than the Heljan one.

I keep a stash of these (and Mehano with a higher rpm) in my drawer at all times as this is a pretty industry standard size.

Thanks for the detailed response. I shall look into acquiring one of these motors and seeing if it does indeed fit, and will report back. Thanks again 

3 hours ago, adb968008 said:

I recall this motor is similar size specs to what is used in the class 87

 

X7249

 

Pretty certain its the Hattons 66 and Dapol 73 too.. just different flywheels, I can check mine over the weekend.

That'd be great, Thank-you!

Had a trawl of the Internet and zero x9863s available anywhere. Presumably now as they are not the latest version that'll be game over for a model that is only 5 or 6 years old. Poor show from Hornby in my opinion. I originally requested these motors nearly a year ago and was told they are on order. Somehow I'm not optimistic.....

35 minutes ago, Fireline said:

 

The motor is dying. X9863.

Thank-you. I had a horrible feeling it might be terminal for the motor. I think I'm right in saying though x9863 motors are like hens teeth now, as I know I've searched before without any luck and Hornby didn't want to know either! Thanks for the potential diagnosis  :-) 

Having an issue with a HST (intercity John Wesley release). I have fitted it with a sound decoder, and after a couple of hours it blew the decoder (standard Hornby HST TTS valenta ). I fitted another, and very quickly it is obvious that the motor gets hot quickly under power and the amps that normally sit around 20 or so on other power cars are flying off up to 50 alot of the time!. At this point I have stopped running it to prevent another decoder being fried. Can anyone suggest the most likely problem? I have several HSTs and not really had this specific problem before. Any advice or similar experiences appreciated! Ps, returning it to Hornby won't be an option as they have stated they won't touch modified stock (it has been underframe painted, weathered and renumbered!). Thanks 

7 hours ago, charliepetty said:

Have you tried reprogramming them ????

 

Charlie

They happily reprogramme 100 percent of the time whilst fitted with a Hornby TTS decoder (as purchased). No issues whatsoever. Does this mean there would be no issues with your decoders?

On 31/05/2024 at 23:17, charliepetty said:

The current range of HSTs produced since 2019 are no OK, it was a batch of models from 2018 that had an issue, not our decoders.  This issue applied to 'ALL' decoders, not just ESU Ones.

 

Charlie (Legoomanbiffo/dckits.  PPS we pre program the HST addresses to 125.

 

 

So I have a fleet almost all from the 2018 release intercity swallow TTS (43078 and 079), variously renumbered. Would that be the batch affected??? Thanks.

1 hour ago, legomanbiffo said:

This was an issue with a batch of Hornby HST’s about 10 years ago hence the advice. As far as I know it’s no longer a problem. Easily solved even with the ‘problem’ batch by changing the address before putting the chips in the offending models. The Valenta HST’s sound great through EM2 speakers, and you can now turn the treble up slightly in the chip to balance up their frequency response. Hope this helps.

Almost all my HSTs would date from about 6 years ago, so may or may not be affected. The issue I have is I frequently change the address of the loco and so taking the decoder in and out isn't an option. It's frustrating, as everything I've read suggests this is the best option but the inability to easily change address could well be prohibitive. 

Thank-you for the above recommendation. I have looked at the legomanbiffo decoder , but have a slight issue with it, in that there is a notice on the site saying the decider address shouldn't be changed whilst in the Hornby HST due to issues with the circuit board. I change the addresses of my power cars very frequently (for reasons I won't bore you with), so that slightly precludes Legomanbiffo for me. I then looked at the Howes decoder, but when looking through the range of functions, there doesn't appear to be the vital "notch up" and " notch down" functions which I consider pretty important in realistic HST operation. Would the notching up and down be purely automatic , or am I missing something? 

My HST fleet is currently fitted with Hornby TTS valenta sound. It's OK, don't get me wrong, but just watching an excellent 1990s HST cab ride clip and hearing the actual sound has got me wondering if there are better options available? I believe Legomanbiffo and Howes both do a HST decoder, does anyone have a view on which is best, or indeed are there any other options out there? 

10 hours ago, pheaton said:

Sounds like it needs an auto tune, I used to get similar with Biffs projects on some Hornby locos, 

 

https://dccwiki.com/LokSound_Auto_Tune

 

see there, you will need either a rolling road or a decent length of track as during autotune the loco sometimes gets up to some speed!

 

 

Thanks that's a useful link. 

I have 47828 the latest version of the class 47 with a plux22 sound decoder.

I have noticed when bringing the loco to a stand , it stops, then it has a sudden but brief surge, moving forward around about 10cm before finally stopping. What is likely causing this?

Also, I find the brake just a little too slow to react. I was under the impression CV4 should be altered to make the brakes slightly "better" but this hasn't made any difference. Am I looking at the right CV? 

Managed to do it, the pliers did the trick, though as you say it is pretty fiddly.

26 minutes ago, 97406 said:

Firstly, on one side of the wheelset, I used a pair of narrow nosed pliers to grip the brass square on opposite sides near the top so that it is in the correct orientation. I pushed it into the slot without it going all the way home. Repeated on the other side, then pushed the wheelset home. Took 2 or 3 goes each time with a lot of swearing. I do like swearing, though.

 

Hope that makes sense. I really don’t want to take one apart to take pictures!

Thanks. It's a shame they have made it so difficult to do something as essential as cleaning / adjusting pickups. I shall have another attempt anyway!

Having removed the wheels in order to give the pickups a clean, I am now at a loss to refit the wheels to the bogie due to the little brass squares that need to be in exactly the right position.  I cannot (and I've tried for about an hour), get the little brass squares to line up with the slot they are supposed to live in. I hope this makes sense? Does anyone know the trick of getting them back in place? It's one of the latest 47 models BTW. Thanks in advance.

57 minutes ago, fiftyfour fiftyfour said:

One of my Hornby HST power cars (circa 2008, the then "new" version, R2704 pack) has decided that after being last operated about four years ago without a problem it wants to play up. It initially crawled along at a very slow pace with only one bogie moving, and bench testing showed the mechanism between the cogs and the carden shaft at the No1 end (cab end) had seized so the good end was fighting against a static end. Stripped it down and built it back up one bit at a time, and its either the housing around the brass thing which I'm going to call a worm drive, or the worm drive locking up against the cogs. Anyone any ideas on a permanent fix please? For now I'm running it without the carden shaft and the brass worm drive so it's only powering one bogie, which seems to have negligible effect on performance but it doesn't feel like that is a long term fix!

 

Can't really help, but I have been running a power car for several years with exactly what you describe (ie only one bogie powered), and I've found it to perform equally as well, and in some ways better than other power cars in the fleet. Its not had a problem in about 4 years of running that way, and has probably done well over 20 hours running in this state.

Sorry to hijack the thread, but quick question. I'm thinking of buying some Bachmann 47s (the newer model), but I'm unfamiliar with plux22 decoder. Is it possible to fit a different decoder to a dcc ready example, say a standard 21 pin decoder? Sorry if it's a stupid question, but I've never come across a plux22, and have no desire to fit one for features such as working fan that doesn't bother me. Thanks. 

Sorry to slightly hijack this thread, but not sure where else to post. 

I, along with several others experienced issues with the HST power car elite couplings being a little too thin and small and having a tendency to pop out on the move. Full credit to Hunt, the latest incarnation has completely solved this problem, with a larger fish tail, they fit perfectly and do not fall out at any speed, great. However, on the negative side, the new coupling, although much sturdier and fitting the Hornby power car brilliantly, are very slightly longer, and so the gap between power car and carriage is now larger, almost to the point it isn't worth using magnetic instead of the standard hook coupling. Can Hunt possibly shorten the new coupling slightly to give a smaller gap between power car and first coach?

47 minutes ago, DY444 said:

I have no idea if a 37 hauled a rake of HST trailers in that period but they certainly hauled complete HSTs in BR days as there is photo evidence.  So imo it could easily have happened and is therefore reasonable.  No doubt the "that never happened" brigade might get exercised by it but they can't possibly know it didn't so who cares.  It's entirely plausible so imo it's fine

Indeed I have found plenty of photos of exactly this, generally as a rescue as opposed to a stock move between depots. I think it is certainly feasible though for a 37 to be used on ECS with a barrier, was just after the "smoking gun" photo or account, but I'll probably just have to go with the probability ! . Thanks.

39 minutes ago, Mol_PMB said:

This would be the sectorisation period so for a move between depots it's most likely to have been an Intercity sector loco that did the job.

Probably one based close to the relevant HST depot. That probably makes a 47 most likely, but perhaps a 37/4 in Scotland?

Don't forget in this period intercity owned infrastructure locos, so in the case of the Western,they owned a fair number of infrastructure 37s based at Bath Road and Canton. I was wondering if they could have been used occasionally on say a SPM to Laira stock move. 47s where definitely the choice motive power, just unsure if 37s ever did a move or not, though can't find a photo. 

My question is, did / could the above formation ever occur in the period roughly 1990 to 1994? Usually if a HST mk3 set was to be moved between depots and no power cars where available , a barrier and a 47 would be used, but has a 37 ever done the job? Specifically looking at this time period as I know in modern times it has happened. Thanks in advance. 

On 10/11/2023 at 14:13, Mike_Walker said:

Was it?  RTT listed it as only one 5-car, 800013.  It should have been a 10-car.

Most definitely a 10 car set (2x5 cars) . I personally spoke to the driver (my username may just give away my job), and she confirmed it was a 10 causing her to have to trek along the ballast. 

2 hours ago, Oldddudders said:

21 minutes? Are you serious? And the cab was, so we are told above, only two coach-lengths past a green signal? So no SPAD issue, and driver apparently not too shaken up - as can legitimately be the case. 

21 minutes, Largely due to the need for the driver to change ends twice on a 10 car set  (2 x 5 car IETs) which involved getting down onto the ballast both to reverse and then to regain the front cab. Added to the inevitable safety communications involved, 21 minutes is perfectly reasonable. 

On 31/10/2023 at 17:50, Mike_Walker said:

But this case has nothing to do with removing route knowledge.  I understand the driver involved still signs both routes.  The issue was that the train was being misrouted without prior warning so the driver correctly stopped and challenged the route.

Wrong. Very much involved route knowledge. In the old days a Plymouth driver could In theory carry on via Bristol , however since that route knowledge was (bizarely) removed, there was no way the driver in question could have carried on that way. Though as you say, The drivers actions where spot on , she stopped as quickly as physically possible, just unfortunate with the sighting of that signal that you don't get long enough to stop in time. 

On 29/10/2023 at 18:18, The Pilotman said:

According to one of the passengers, the train stopped “halfway to Bristol”. Halfway from Cogload to Bristol would be somewhere around Weston-super-Mare so I’m going to say they’re talking out of their ****.

The driver was indeed a Plymouth one, and she could not have continued to Bristol as Plymouth bizarrely no longer sign Taunton to Bristol (whilst Gloucester drivers DO.. .!) . Anyway, this is all massive press sensationalism,  surprise surprise,  the train ran a mere 2 carriage lengths past the junction signal, and hadn't even made it onto the junction divide!