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Bachmann 94xx


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  • RMweb Gold

I like a happy ending, and am glad that your 94xx is now running properly.  It reminds of an incident many years ago with my Ford Escort, which refused to start one morning.  It wasn't particularly cold or damp and I went through the usual routine, spark plug gaps, contact breaker, distributor (showing my age now!), air filter, timing chain, to no avail.  I had a car with an internal combustion engine that I had proved to my satisfaction provided a fuel/air mixture and a spark in the combustion chambers at the correct time, but wouldn't go.  This of course defies the laws of physic,

 

Pushed it to the garage around the corner where their boss, an ace mechanic and good bloke, gave me the 'bloody amatuer' look of scorn; he clearly didn't believe me and I could see why.  I had to leave it at this point to go to work on the bus.

 

Rang him lunch time to find that he was equally flummoxed and his pride was dented to the extent that he stated that if he couldn't get it running for me by 3 o'clock he would fit a newly reconditioned engine he had at hand for me free of charge.  I saw him up the pub that evening and it looked as if I was on for the recon engine, a proven runner. 

 

He phoned the folllowing morning to say that my car was running perfectly with it's original 12 year old engine, but that the problem was one he had never encountered in 30 years in the trade, or heard of.  The distributor drive shaft had cracked, and was turning the distributor normally with the cap off, but when the cap was fitted it provided sufficient resistance at the points to stop the top half of the broken shaft. 

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On 03/02/2021 at 11:15, The Johnster said:

THE PRECIOUS!!!!

IT IS HERE!!!!

IT HAS ARRIVED!!!!

PRECIOUSSSSSSSSS!!!!!!!!!!!!!!!!!

Well not quite arrived, but collected, I waited for my local shop to re-open bearing in mind some of the to-ing and fro-ing with the faulty ones bought from the box shifters.  Anyway as of Sat 16 afternoon they had 2 late crest and 3 early crest DC ones left, and some sound but not sure which and some GWR green.  I decided to gamble on them still having some as they are not big on mail order but have been doing more thru lockdown, they also test all of them before sending out so that's good due to the variable QC.  KS  models Stevenage , Herts. No connection etc. etc.

 

Anyway what a fantastic item, slow running on my GM controllers is superb easily the best I have, short video 2 mins below.  Will keep as pristine and just lightly weather the wheels, rodding etc. and dry brush matt varnish to smokebox. Add the pipework and move tension locks till level with buffers and remove hooks, my usual practice, and add crew.  Pics will follow at some point.

 

 

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On 19/04/2021 at 21:52, The Johnster said:

I'm sure you will enjoy yours as much as I'm enjoying mine, confused. 

Absolutely, I haven't even got round to the detailing pack and real coal yet, just been playing trains with it, watching it go by with a few beers. The wife has been a train widow all week, have to say never been so impressed with a model.  The coreless motor is better then expected and as been said before in this thread somewhere moves off at just below 10 on my GM controllers, the Bachy 8750 moves off at just over 20 in comparrison. The weight is a great advantage.  At some point I will look to add lead to my 87 and N class. So tempted to buy the early crest one and dirty it up.

 

Next decision, the revised Dapol mogul, or a Manor suspect the Accura Manor one will be the better choice, but the Mogul would be a better size for my small layout.

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  • RMweb Gold
4 hours ago, confused said:

 

 

Next decision, the revised Dapol mogul, or a Manor suspect the Accura Manor one will be the better choice, but the Mogul would be a better size for my small layout.

I reckon hang out for the Manor - dream big :)

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4 hours ago, MikeParkin65 said:

I reckon hang out for the Manor - dream big :)

Ha ha, but if a Manor D or A, I will have to decide.

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I'm switching from DC to DCC on my layout. Last evening I installed a sound decoder into my 94xx and started playing with the function buttons and had a big grin on my face the whole time. Even normally disinterested family members seemed to find the new loco functionality amusing. Or were they just humouring me?

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14 minutes ago, LimboBrit said:

I'm switching from DC to DCC on my layout. Last evening I installed a sound decoder into my 94xx and started playing with the function buttons and had a big grin on my face the whole time. Even normally disinterested family members seemed to find the new loco functionality amusing. Or were they just humouring me?

Sound does seem to have the effect of interesting the previously uninterested :)

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20 hours ago, MikeParkin65 said:

I reckon hang out for the Manor - dream big :)

After see the latest tooling of Accura., this will be the one.

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  • RMweb Gold
3 hours ago, confused said:

After see the latest tooling of Accura., this will be the one.

Both the Dapol and Accura models are looking to be exceptional - we may end up in the happy position of being able to choose our desired loco from either manufactures range :)

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On 19/04/2021 at 14:08, The Johnster said:

I like a happy ending, and am glad that your 94xx is now running properly.  It reminds of an incident many years ago with my Ford Escort, which refused to start one morning.  It wasn't particularly cold or damp and I went through the usual routine, spark plug gaps, contact breaker, distributor (showing my age now!), air filter, timing chain, to no avail.  I had a car with an internal combustion engine that I had proved to my satisfaction provided a fuel/air mixture and a spark in the combustion chambers at the correct time, but wouldn't go.  This of course defies the laws of physic,

 

Pushed it to the garage around the corner where their boss, an ace mechanic and good bloke, gave me the 'bloody amatuer' look of scorn; he clearly didn't believe me and I could see why.  I had to leave it at this point to go to work on the bus.

 

Rang him lunch time to find that he was equally flummoxed and his pride was dented to the extent that he stated that if he couldn't get it running for me by 3 o'clock he would fit a newly reconditioned engine he had at hand for me free of charge.  I saw him up the pub that evening and it looked as if I was on for the recon engine, a proven runner. 

 

He phoned the folllowing morning to say that my car was running perfectly with it's original 12 year old engine, but that the problem was one he had never encountered in 30 years in the trade, or heard of.  The distributor drive shaft had cracked, and was turning the distributor normally with the cap off, but when the cap was fitted it provided sufficient resistance at the points to stop the top half of the broken shaft. 


I once had a Cavalier 1.6. (1989).  The distributor rotor was driven via a connection from the cam shaft with a plastic peg.  The car died once (thankfully not too far from home), and I found that the distributor rotated freely.  Disassembly found that the peg connection had sheared off.  This was an easy and cheap fix, however apparently was designed to fail if cam belt tensions were too slack. This was duly corrected and the car lived a long and happy life, until being stolen (from outside the in-laws house) and burned out :(

 

One of the best cars I have had, and the wife inherited it for the last couple years of its life as the children’s taxi.  It was the last car I had that I could actually work on and service!

 

An interesting aside - and relevant in considering how repairable current models are by the owner.  There’s a lot to be said for open frame motors.

 

N

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Finally got round to adding the bits and real coal, and a bit more weathering than intended. Cut back Tension lock to buffers for closer coupling, buffers actually retract on 2.75 radius.

Pics always show more detail e.g. shows more dust than at normal viewing at 8" plus.  Doh.

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  • 1 month later...
  • RMweb Gold

Minor panic; yesterday, my beloved 94xx began misbehaving, running jerkily and unsteadily, and started coming out of gear mesh in reverse.  Took the top off, and unlike my other Baccy locos the gearbox on this is covered with a plastic plate held by 4 small xhead bolts. 2 into the chassis block and 2 into the mounting plate for the firebox glow led.  I removed this plate to investigate the gearbox, and found the chassis block bolts to be a little loose.  The motor, and thus the worm on it's shaft, has a degree of vertical play and could easily be pulled upwards so that the gears were completely unmeshed.  I 'replaced' it in it's lowest position and put the cover plate back on, ensuring that the chassis block bolts were fully tightened.

 

Problem solved; full smooth fully meshed performance was immediately restored and the loco again runs quietly with very good slow performance.  I wondered what had caused the bolts to loosen, and the suspect has to be the HM6000 controller, which uses inertia that leads to some vibration and humming.  I've reverted to the conventional Gaugemaster for driving this loco as it does not respond well to the HM6000 anyway, requiring very fine control, and have not used it with the 94xx for some time now. but the initial loosening might have been caused by it, and continued after I stopped using the HM6000 with it. 

 

I mention this as useful to anyone experiencing similar issues; don't panic, the cure is simple, immediate, and total.  But it was an unpleasant few minutes!

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Finally got round to adding the bits and real coal, and a bit more weathering than intended. Cut back Tension lock to buffers for closer coupling, buffers actually retract on 2.75 radius.

Pics always show more detail e.g. shows more dust than at normal viewing at 8" plus.  Doh.

 

I hate to have to say it but the lamps fitted are LNER? pattern, they are certainly not GWR/WR pattern.  See here.  Springside Models and Models4U are amongst suppliers in 4mm.

 

image.png.17d05a38b24a7a7825dbe01eea4a0309.png

 

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  • RMweb Gold
1 hour ago, MG 7305 said:

Finally got round to adding the bits and real coal, and a bit more weathering than intended. Cut back Tension lock to buffers for closer coupling, buffers actually retract on 2.75 radius.

Pics always show more detail e.g. shows more dust than at normal viewing at 8" plus.  Doh.

 

 

I hate to have to say it but the lamps fitted are LNER? pattern, they are certainly not GWR/WR pattern.  See here.  Springside Models and Models4U are amongst suppliers in 4mm.

 

image.png.17d05a38b24a7a7825dbe01eea4a0309.png

 

They are definitely LNER/BR ER pattern lamps.  The lamp in this picture is a (G)WR pattern lamp although in nice shiny condition it would have been white by the time 6417 appeared with a smokebox numberplate.

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4 hours ago, MG 7305 said:

Finally got round to adding the bits and real coal, and a bit more weathering than intended. Cut back Tension lock to buffers for closer coupling, buffers actually retract on 2.75 radius.

Pics always show more detail e.g. shows more dust than at normal viewing at 8" plus.  Doh.

 

 

I hate to have to say it but the lamps fitted are LNER? pattern, they are certainly not GWR/WR pattern.  See here.  Springside Models and Models4U are amongst suppliers in 4mm.

 

 

2 hours ago, The Stationmaster said:

They are definitely LNER/BR ER pattern lamps.  The lamp in this picture is a (G)WR pattern lamp although in nice shiny condition it would have been white by the time 6417 appeared with a smokebox numberplate.

Yes, I know, but my shop only had Springside LNER ones no BR or other regions, in April when they reopened, and I can only tell in photos, I also fitted them to my King I got at Christmas.  All my other locos have BR ones.  Hope to visit this Thursday or Saturday and get the early crest 94 and some more lamps if they have some.

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  • RMweb Gold

But that's a 64xx, not a 94xx.  I know all GW locos are the same (except when they are different), but...

 

Very rough guide to panniers surviving into BR days:-

 

.There were a number of 2021, 1854, and 2721 class locos that had been built as saddle tanks but converted to panniers when they were fitted with Belpaire firebox boilers that lasted into BR ownership.  Some of the 1854s and 2721s had acquired cabs similar to 57xx and could be distinguished by the thick valance below the running plate.  None ever carried a BR livery AFAIK but some may have been given smokebox door numbers and shedcode plates. All gone by 1952.

 

.Tank top at front straight across the top of the smokebox, parallel chimney; 54/64/74xx, 54xx 5'2" diameter driving wheels and auto fitted, 64xx 4'7"diameter driving wheels and auto fitted, 74xx 4'7" driving wheels not auto fitted.  54xx and early 64xx as modelled by Bachmann have radiused join between the cab rear and bunker side like a 48xx and a lip to the front of the cab roof, later 64xx and 74xx have squared off join and no lip.

 

Tank top at front straight across smokebox top but smaller 4'1" wheels and tiny splashers; 16xx.

 

.Line of tank top at front broken by smokebox, flared chimney; 57xx/8750, difference being the Collett style cab on the 8750.  Variants are 67xx and 6750, steam brake only and fitted with laterally jointed coupling rods for dock shunting, and the 97xx with condensing gear and set back tanks, full depth behind the centre driving wheels, for traffic to Smithfield from Paddington on the London Underground 'widened lines'.

 

.Taper boiler, copper cap chimney, and tanks set back half way along the smokebox; 94xx.  Two variants, GW 9400-9 with hinged cover betwen frames to hide cylinder valve chest tops, and BR 9410 onwards including 84xx series and 3400-9 with no cover and the valve chests poking out like barmaids' wibblywobblies.

 

.As above but outside cylinders, Walchaerts valve gear, and short wheelbase;15xx. used as dock shunter and for Old Oak-Paddington ecs duties.

 

 

Examples of all the above are preserved.  9410-99, 8400-99, 3400-9, 15xx, 16xx, and late series 96xx 8750 were built after nationalisation and never appeared in GW livery.  Boilers were taken from a pool at Swindon, and 57xx/67xx and some early 8750s were built with boilers without top feed.  Boilers were subsequently replaced with the next one available at works visits, so topfeedless boilers appeared on later 8750s and possibly 97xx while topfeed boilers appeared on 57xx/67xx.  TTBOMK, the 6750 class, which were built during WW2, and the BR build 16xx, were given topfeed boilers from new and never carried boilers without topfeeds.  Some 16xx were scrapped before overhaul was due, or because overhaul was due.

 

The same applies to the 54/64/74xx classes; topfeed boilers were introduce with the later cab style 64xx and the entire 74xx class but all locos might have topfeedless boilers retrofitted and the 54xx and early 64xx might have topfeed boilers retrofitted.  The best advice is to work from dated photographs of known provenance, as it is very difficult otherwise to ascertain which type of boiler was being carried by which locomotive at any given time.  There was a general tendency, but not an established rule, that topfeed boilers became more likely over time, and RTR panniers with topfeed boilers are correct for the liveries they carry.

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  • RMweb Gold
On 22/06/2021 at 13:31, confused said:

 

Yes, I know, but my shop only had Springside LNER ones no BR or other regions, in April when they reopened, and I can only tell in photos, I also fitted them to my King I got at Christmas.  All my other locos have BR ones.  Hope to visit this Thursday or Saturday and get the early crest 94 and some more lamps if they have some.

I really wouldnt worry about it - you've got a fully scenic section of layout, weathered and detailed your new loco and  fitted lamps which I reckon puts you into the top 10% of modellers anyway . If your driver were eating a sandwich there would be some 'expert' on here telling you 'they didnt have sliced brown bread in 1957' or some such :)

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3 hours ago, MikeParkin65 said:

....... you've got a fully scenic section of layout, weathered and detailed your new loco and  fitted lamps which I reckon puts you into the top 10% of modellers anyway 

er, kind remarks, but don't think so, 'Stoke Courtenay' is the benchmark for me.

 

3 hours ago, The Johnster said:

But that's a 64xx, not a 94xx.  I know all GW locos are the same (except when they are different), but...

Think MG 7305 was using the MODELU image as a comparison, but your info on Panniers really useful:).

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  • 4 months later...
  • RMweb Gold
11 hours ago, atom3624 said:

Judder?

 

Pickups clean?

Is there a near-broken wire?

Is the quartering OK?

Are any of the coupling rod screws loosened / unscrewed?

 

Just a few ideas.

Al.

Agree plus would add is the track clean. On analogue a loco will be more prone to exhibiting poor running at slower speeds due to the lower current as well.  I say this happily watching an Oxford Rail J27 meander around the layout at approx 10mph on my DCC loop which never gets cleaned. 

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