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Post by markm on Apr 12, 2016 22:13:25 GMT -5
I seen to recall a while back someone mentioned that the Märklin version of the E8/9 has a different fuel tank than the AZL in order to accommodate Märklin accessories. I was wondering if anyone has had an issue with the 8589 circuit switch and AZL locos?
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Post by mzbringh on Apr 13, 2016 0:37:30 GMT -5
I tested AZL locos on a 8589 connected to a lamp. Only the inner 8589 is connected to the lamp in the first test. Every engine that I tested except AZL Mikado triggered the lamp. Maybe I forgot to test the AZL MILW E9 and the Marklin PRR E8. Maybe I haven't dismantled the test layout more than I can set it up again if you want me to.
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Post by markm on Apr 13, 2016 9:15:18 GMT -5
Thanks for the input. I was specifically interested in the E units. I suspect that any underside difference between Märklin and AZL is due to the Märklin couplers and the uncoupling track. I'll set up a similar test layout to check, but I always like the opportunity to check my work.
Mark
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Post by charlie on Apr 28, 2016 15:43:14 GMT -5
Hi,
This makes me remember what I tested fews days ago.
None of the F3 A or B units have the same speed at a similar voltage (on the same piece or 1m long testing track, at the same time, uncoupled and closed to each other, or coupled)
I own F3 DRGW ABBA and UP AB:
- UP: the A unit runs much faster than the B unit...so when A+B units are coupled, they uncouple automatically....I need to install the fixed coupler, but one will keep "pushing" the other... bad?
- DRGW: one B unit runs faster than a A unit....and the other A and B units run at the same speed, but not the same as the other AB units.....
Ok they are new and I need to break them in, but still I find the speed differences enormous!
Anyone has ever experienced this?
Charlie
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Post by markm on Apr 28, 2016 16:09:44 GMT -5
Charlie,
Not exactly the original topic, but I'll bite. In general, the hobby standard is 20% speed variation between units. I find that the AZL and MTL GPs do (did) much better than that. That said, yes I have noticed that both the F3 and E8 B units do tend to run faster. I haven't had the time open them up to see what the differences are.
An interesting side note: I purchased an MTL WP F7A-B set and the old "coffee grinders" are perfectly matched.
Mark
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Post by zscalehobo on Apr 28, 2016 17:43:00 GMT -5
Hi, None of the F3 A or B units have the same speed at a similar voltage (on the same piece or 1m long testing track, at the same time, uncoupled and closed to each other, or coupled) I own F3 DRGW ABBA and UP AB: - UP: the A unit runs much faster than the B unit...so when A+B units are coupled, they uncouple automatically....I need to install the fixed coupler, but one will keep "pushing" the other... bad? - DRGW: one B unit runs faster than a A unit....and the other A and B units run at the same speed, but not the same as the other AB units..... Ok they are new and I need to break them in, but still I find the speed differences enormous! Anyone has ever experienced this? Charlie Searching simply "Speed" via this site's search tool leads to these topics: azlforum.com/thread/543/scale-power-supplies-locomotive-speedazlforum.com/thread/329/managing-expectationsazlforum.com/thread/328/slow-fastThe managing expectations thread contains this nugget: Speed matching is a topic that comes up frequently. AZL does not, nor can guarantee locomotives will run at the same speed. One of the challenges of Z scale is the the tolerance are so small, that the most minuscule of difference can drastically alter a locomotive. For instance, a little too much grease may slow a locomotive a few scale MPH. If speed matching is key for you, we do recommend the use of DCC as this is the only way to truly match locomotive speeds. Note, this is not an issue restricted to AZL. This same topic happens for all manufacturers in all scales.
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Post by gerd on Apr 28, 2016 22:29:49 GMT -5
One way of "adjusting" speed is to loosen /tighten the screws which keep the chassis halves together, of course this trick doesn't work with some AZL models which uses the plastic clamps (which I personally don't like at all)
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Post by charlie on Apr 29, 2016 2:32:08 GMT -5
Ok thank you. I'll indeed go for DCC in the coming months  that was just a worry about the engines, I didn't want to warm them up!  |
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that was just a worry about the engines, I didn't want to warm them up!
