Author Topic: problems with BLI T1  (Read 1527 times)

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propmeup1

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problems with BLI T1
« on: April 21, 2019, 04:20:29 PM »
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I now have three BLI T1s. Yes i love those engines but I am loosing faith in BLI in a real hurry.  All of their M1s run great and I couldn't ask for more. The centipedes run like crap but when they run good they are great but most of the time a siding queens. Both sets have made four trips back to BLI for repair, etc...   
     Back to the T1s.  Other then having a mind of their own at times, for instance, I power up the layout and the three t1s come alive without any call up. They want to take off running.  Or if one is running good with out stalling I've found when you try to slow down or speed up it won't respond. I'll have to shut down the layout to kill the power.  Just the T1s no other engines , just BLI. Upon contact with BLI do get good service but they defend their product to the hilt and they have to know they have issues but would never admit to it.
     My point is,  I am ready to put in a different decoder in one of these T1s to see if it runs any better.   There also is pick up issues with them. They all stall at the same locations around the layout where none of my other engines do, for that fact none of my other engines stall except the centipedes and T1s.   
    Any ideas if I should install a different decoder and yes that will most likely void any warranty. After spending a boat load of doe on BLI T1s I am at my limit with them.  They do make beautiful looking engines but their performance is questionable at the least.

Mike C

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Re: problems with BLI T1
« Reply #1 on: April 21, 2019, 06:11:40 PM »
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 I always thought that the decoders were "funny" . I ended up having Tsunami 2 decoders put into my M1's , and would probably do the same if I had any of the T1's ......Mike

peteski

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Re: problems with BLI T1
« Reply #2 on: April 21, 2019, 09:44:18 PM »
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I suspect the problem is intermittent pickup in the tender.  Take the bottom plate off and see if you need to bend the metal fingers to more positively contact the axles.
I also agree with Mike - not a fan of BLI decoders.
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SecretWeapon

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Re: problems with BLI T1
« Reply #3 on: April 22, 2019, 10:46:20 AM »
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I heard there was a 50% failure rate with the T-1's. I also heard the reason is they had a large amount of extra HO decoders on the shelf. You do the math. HO decoders don't work well in N scale.
Mike

propmeup1

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Re: problems with BLI T1
« Reply #4 on: April 22, 2019, 04:58:01 PM »
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Other then the decoders acting up the pick up sucks as I said.   However last night i took the wheel off the tender and went over the pick up sides only with a 600 grit emory. That loco runs good now without stalling.   The wheels look like they have some sort of film over them. I may just do the front drive axle as well.  So far today the decoder has been working.
     All I can say is BLI better get their decoder crap in one sock.  Next  BLI N steam I understand is a standard USRA 2-8-2
KTB

Jbub

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Re: problems with BLI T1
« Reply #5 on: April 22, 2019, 05:04:03 PM »
+1
Other then the decoders acting up the pick up sucks as I said.   However last night i took the wheel off the tender and went over the pick up sides only with a 600 grit emory. That loco runs good now without stalling.   The wheels look like they have some sort of film over them. I may just do the front drive axle as well.  So far today the decoder has been working.
     All I can say is BLI better get their decoder crap in one sock.  Next  BLI N steam I understand is a standard USRA 2-8-2
KTB
Never gonna happen but I wish they would take their decoders, put them in a sock and take a hammer to it then sell their locomotives DC/dcc ready.
"Noooooooooooooooooooo!!!!!!"

Darth Vader

peteski

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Re: problems with BLI T1
« Reply #6 on: April 22, 2019, 06:35:28 PM »
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Other then the decoders acting up the pick up sucks as I said.   However last night i took the wheel off the tender and went over the pick up sides only with a 600 grit emory. That loco runs good now without stalling.   The wheels look like they have some sort of film over them. I may just do the front drive axle as well.  So far today the decoder has been working.
     All I can say is BLI better get their decoder crap in one sock.  Next  BLI N steam I understand is a standard USRA 2-8-2
KTB

Electrical pickup issues and decoder misbehaving (like ignoring the speed step packets) go hand-in-hand.  Intermittent pickup causes loss of DCC packets that the decoder receives.  Or in some instances decoder incorrectly interprets the broken up packets as commands which aren't really there and gets "confused" or behaves erratically. Some decoders handle the packet loss/corruption better than others - BLI seems not to handle that very well.

Think of the track and wiring as a computer network where all the decoders are receiving network packets broadcasted by the command station through boosters. That is why you fixing the pickup issues made the decoder behave much better it is now receiving "cleaner" DCC packets.
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wcfn100

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Re: problems with BLI T1
« Reply #7 on: April 22, 2019, 06:55:22 PM »
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Or in some instances decoder incorrectly interprets the broken up packets as commands which aren't really there and gets "confused" or behaves erratically.

How would that happen?

Jason

garethashenden

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Re: problems with BLI T1
« Reply #8 on: April 22, 2019, 08:00:11 PM »
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How would that happen?

Jason

It shouldn’t. That’s the whole point of checksums which are included in the DCC packets.