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Author Topic: Bachmann Class 40  (Read 29352 times)

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Offline Dr Al

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Re: Bachmann Class 40
« Reply #150 on: December 08, 2017, 05:47:14 PM »
Are they not the first diesels to have the new coreless motor?  Is this what is making the difference rather than gearing issues?

Having had the frames off mine, the gearing looks fairly standard - it's not massively geared down, so must be mostly an effect of the motor, which is the first use of the coreless on a diesel. All previous comparisons are with the higher revving 3 pole can motors Farish used previously, so it's not surprising they are different.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Offline crepello

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Re: Bachmann Class 40
« Reply #151 on: December 10, 2017, 04:20:53 PM »
One of my 40s runs perfectly on my layout. The other derails on points after a curve in one direction only. I've swapped the pony from  the good one and the front bogie still derails. I've tried several back-to-back settings for the pony with no luck. I've even run the offending bogie without any pony--runs perfectly. The speedo cables don't seem to be restricting the bogie swing. Running out of ideas now--can anyone suggest a remedy or should it go back to the retailer?

Offline Dr Al

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Re: Bachmann Class 40
« Reply #152 on: December 10, 2017, 06:20:24 PM »
Check the pickups on the main wheels - they should hold the wheels centrally - if they are pushed to one side then it could be the issue, and a gentle bend of the appropriate sides should even them up.

This kind of thing can often be the cause of derailments or rough running over points on all diesel models, from old Poole Farish right through to the current.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Offline Roy L S

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Re: Bachmann Class 40
« Reply #153 on: December 10, 2017, 07:18:35 PM »
Also check the sand-pipes aren't fouling track/pointwork.

Roy

Offline Newportnobby

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Re: Bachmann Class 40
« Reply #154 on: December 10, 2017, 08:47:36 PM »
That's most interesting as I reported a similar if not identical problem in reply #78 :hmmm:


Having received D211 last night I ran it this morning to find it derailed on the first small electrofrog it came to in both directions. 'Strange' I thought. 'The destructions state not to try running it on curves less than 263.5mm (about 10½") and the points are 12" radius' :confused2:
It turns out it didn't like running off a small curve onto the point. When I changed it to run off the 2nd point in the fiddle yard all was well.


Offline willike1958

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Re: Bachmann Class 40
« Reply #155 on: December 17, 2017, 05:49:08 PM »
This proud owner of a new BR Blue Class 40 celebrated his purchase by pinging half of the bag o' bits to the far corners of the train room!! If anyone isn't using the multiple working jumper cables and sockets and would like to sell them on (or even the full bag), please feel free to let me know by pm.
Kevin

Offline Ian Morton

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Re: Bachmann Class 40
« Reply #156 on: December 17, 2017, 10:15:20 PM »
I have to say this is probably the easiest DCC sound installation going.



Pop the top off (no tools, just fingernails) and purchase a Next18 DCC decoder with a class 40 sound project.
(This one was from YooChoos http://www.youchoos.co.uk/Index-Shop.php?L1=Project&Item=Class40)



Take the blanking plate out and put the decoder in.



There is a speaker built into the body. Pop the body back on and that's it.

And here is the end result:

Offline Shropshire Lad

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Re: Bachmann Class 40
« Reply #157 on: December 18, 2017, 07:05:39 AM »
I wish all sound installations were this easy!
The Youchoos sound project sounds nice but I couldn't live with the engine ramping up when changing direction. I had mine re blown with a Paul Chetter sound project from Digitrains and a colleague of mine who used to drive 40s for a living gave it 10 out of 10!

Online Delboy

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Re: Bachmann Class 40
« Reply #158 on: December 18, 2017, 10:49:45 AM »
Shropshire Lad
Is it expensive to have them re-blown?
Dennis
She who must be obeyed says I am spending too much time on this forum. I love her dearly but what does she know?

Offline bigmac

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Re: Bachmann Class 40
« Reply #159 on: December 18, 2017, 12:26:25 PM »
i was trainspotting in birmingham as a lad all over again !
i used to be indecisive...but now i'm not so sure.

Offline Shropshire Lad

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Re: Bachmann Class 40
« Reply #160 on: December 18, 2017, 01:44:09 PM »
Dellboy
They charge £15 for a decoder reblow, plus postage unless you take it to the shop or see them at a show.
Jeremy did mine at Warley in a few minutes. I'll do a video if you want to hear it first.

Online Delboy

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Re: Bachmann Class 40
« Reply #161 on: December 18, 2017, 01:59:52 PM »
Hi Shropshire Lad,
A video would be good please.
Dennis.
She who must be obeyed says I am spending too much time on this forum. I love her dearly but what does she know?

Offline Shropshire Lad

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Re: Bachmann Class 40
« Reply #162 on: December 19, 2017, 11:42:23 AM »
Hi Dennis I'm obviously no good at driving and filming at the same time but this will give you the general idea.
https://youtu.be/vCkVzKVwKQo

Online Delboy

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Re: Bachmann Class 40
« Reply #163 on: December 19, 2017, 11:53:59 AM »
Colin,
IMO nothing wrong with your filming and that's very good sound. You mentioned you didn't like the engine ramping up when changing direction. Sorry to be a pain, but any chance of a video showing what happens when yours changes direction? Also do you still get an abundance of functions including station announcement with the Paul Chetter re-blow?
Thanks Dennis.
She who must be obeyed says I am spending too much time on this forum. I love her dearly but what does she know?

Offline Shropshire Lad

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Re: Bachmann Class 40
« Reply #164 on: December 19, 2017, 12:40:03 PM »
Ah just noticed that the tail lights were turned off! The headcode lights came on when the direction was changed, accompanied by a hiss of air from reverser.
Not at home now but Digitrains or Paul himself will, I'm sure, give you info on the sounds included in the project.

 

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