Tillig E94 running slow

Tillig E94 running slow

Postby CFRiad » Sat Jun 22, 2019 10:48 pm

About a year ago, I bought a DR E94 model from Tillig's 2018 release. I plopped a Lenz Silver decoder in it and tried it on the layout once, noticing that it was running rather slow. Didn't have time to fiddle with it then, it sat in its box until this weekend when I decided to test it properly at the BCSME show.

It is indeed running very slowly. At its maximum throttle the speed is well below the prototypical 100 km/h.Terry tried his unit and runs at the same maximum speed.

Has anyone experienced the same problems with this model? Have you guys heard of any fix? I am not fluent enough in German to follow the forums there.

Any help, idea, or commiseration is much appreciated.
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Tillig E94 running slow

Postby ConducTTor » Sun Jun 23, 2019 1:26 am

Just posted about this on the other thread - the designer screwed up the ratios. Fixes are higher rpm motor or different worm gears. I don't know the specifics of either though.


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Re: Tillig E94 running slow

Postby MacG » Sun Jun 23, 2019 6:58 am

They have changed it to this worm gears and added a 0.15mm shim. Because the new worm gear has a slightly greater diameter.
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Re: Tillig E94 running slow

Postby ConducTTor » Sun Jun 23, 2019 8:08 am

Thanks MacG. Need to buy four of those.


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Re: Tillig E94 running slow

Postby MacG » Sun Jun 23, 2019 8:55 am

Maybe for you North Americans a collective order makes sense. :wink:
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Re: Tillig E94 running slow

Postby CFRiad » Sun Jun 23, 2019 10:32 am

Thank you guys for this information. It saved me a few hours of troubleshooting. I was planning to put the DC chip back in and try running it with a plain power pack to see if the problems are with the decoder.

Before I break the model down and replace the worm gear, I will contact Tillig to express my displeasure. IT will not resolve anything, but will allow me too vent.

ConducTTor wrote:[...] a ratio clusterfudge [...].

Thank you Alex for this new addition to my project management vocabulary. It fills an important gap in the shades of f**k-ups. I haven't come across one this good since BBC introduced omnishambles.
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Re: Tillig E94 running slow

Postby ConducTTor » Sun Jun 23, 2019 11:37 am

"Omnishambles" hahahahahaha


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Re: Tillig E94 running slow

Postby CFRiad » Sun Jun 23, 2019 10:16 pm

Omnishambles comes from “The Thick of It”, Armando Ianucci’s precursor to “Veep”.

It got used a lot about Davis Cameron’s government immediately post Brexit vote.
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Re: Tillig E94 running slow

Postby dileTTante » Mon Jun 24, 2019 11:00 pm

Two other problems showed up on my E94 which I bought when Tibi bought his. I didn't run the E94 on a layout until last weekend because Tibi had his to run at the shows. On its first runs my E94 derailed constantly.

The attached photo shows the two screws which hold the circuit board. The circuit board was loose because the screws don't tighten properly. The threads are stripped or the screws are wrong. That prevented easy installation of sound, because the circuit board can't be pressed down to make contact with the speaker terminals. That's the first problem.

Viewing the attached photo close up shows that the screws are not identical. One has a thicker head, and this prevents the body from fitting properly on the chassis. That's the second problem. The tiny lack of clearance causes the rear hood to catch on the body, which keeps the bogie from turning as it should.

This is just an observation which might warn or help others.

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Re: Tillig E94 running slow

Postby krokodil » Tue Jun 25, 2019 3:11 am

Tillig knows about the slow speed of the E94, was published several times in several magazines. Probably they installed the incorrect worms into the mechanizm. I never heard from Tillig any official feedback.
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