Author Topic: BLI NW2/SW7  (Read 3119 times)

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peteski

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Re: BLI NW2/SW7
« Reply #15 on: November 30, 2019, 10:18:25 AM »
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Here's a picture for Peteski  :D



-Mark

Wow!  Mark finally switched to using high-res photos in his reviews!  Look at all the details I can now see!  How cool is that?!  :D
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thomasjmdavis

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Re: BLI NW2/SW7
« Reply #16 on: November 30, 2019, 10:26:54 AM »
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Is the body of the nw2 the same as the body of the sw7.   Are they prototypically correct?  Any one know what phase the models represent?
I don't know if this is absolutely gospel, but my Second Diesel Spotter's Guide (I wore out the "first" Diesel Spotter's Guide in the days when you could easily spot most of the diesels in it) has the last NW-2s and first SW-7s sharing the same "postwar" body, including curved windows above the hood.  The distinguishing feature is that the SW-7 the radiator is full height from the boards to the headlight, while the NW-2 has about 2/3 the size (so there is about 3 feet of sheet metal between the bottom of the radiator and the deck). They began installing 1200hp engines (ie SW-7) in December 1949, and adopted squared windows in April 1950.  I hesitate to use "phases" here as it seems to depend on who you read.  But they did get right the radiator change, and are producing SW-7s with both cabs. 

And as with all this sort of thing, there were NW-2s rebuilt with later cabs, or re-engined to 1200hp, or louvered doors swapped in and out- so by 1960, a given railroad might have NW-2s that were indistinguishable from an SW-1200.
Tom D.

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Missaberoad

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Re: BLI NW2/SW7
« Reply #17 on: November 30, 2019, 11:01:31 AM »
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Is the body of the nw2 the same as the body of the sw7.   Are they prototypically correct?  Any one know what phase the models represent?

Two different bodies and two different cabs...





Ryan in Alberta

mplsjct

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Re: BLI NW2/SW7
« Reply #18 on: November 30, 2019, 04:18:41 PM »
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Two different bodies and two different cabs...





The pick ups look similar to the LifeLike SW9, at least in these photos
I’m not here to argue

spookshow

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Re: BLI NW2/SW7
« Reply #19 on: November 30, 2019, 04:19:41 PM »
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I put mine on speed step 1 and turned it loose. Three hours later and nary a hiccup, so I'm impressed so far.

-Mark

spookshow

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Re: BLI NW2/SW7
« Reply #20 on: November 30, 2019, 04:25:45 PM »
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The pick ups look similar to the LifeLike SW9, at least in these photos

Not really - the chassis does not conduct current. The wipers on the trucks push up against four small contact strips attached to the underside of the sidesill (which is actually part of the chassis). Wires soldered to the contact strips transfer current to the decoder board.

I'd post a picture, but I'm still trying to figure out how to get the trucks off.

-Mark

Jim Starbuck

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Re: BLI NW2/SW7
« Reply #21 on: November 30, 2019, 05:13:38 PM »
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I put mine on speed step 1 and turned it loose. Three hours later and nary a hiccup, so I'm impressed so far.

-Mark

That’s excellent Mark!
I’ve got one on the way. Really looking forward to seeing it.

Jim
« Last Edit: November 30, 2019, 05:24:01 PM by Jim Starbuck »
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drbnc

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Re: BLI NW2/SW7
« Reply #22 on: December 01, 2019, 09:33:02 AM »
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Mark5

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Re: BLI NW2/SW7
« Reply #23 on: December 01, 2019, 09:45:21 AM »
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No traction tires.

-Mark

Fantastic! Thanks for all the info.

Mark

Joetrain59

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Re: BLI NW2/SW7
« Reply #24 on: December 02, 2019, 03:01:43 AM »
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I just ordered an undec, on reserve yet, from Hogtrainz. Now I need to find the DC master box, so I can hear it on DC right now. DCC when layout gets started.
 Joe D

spookshow

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Re: BLI NW2/SW7
« Reply #25 on: December 02, 2019, 07:22:53 AM »
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Turns out that the trucks simply pull off - it just takes a bit more "oomph" than I was willing to apply at first (getting them back on is kind of difficult as well). The gears are slathered in lube, so if you're having stalling issues the first thing to do is to make sure those chassis contact strips are clean.



-Mark

garethashenden

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Re: BLI NW2/SW7
« Reply #26 on: December 02, 2019, 10:32:21 AM »
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How is the truck pickup organised? It looks as if it could have pointed axles and cup pickups like everyone else, but given that it’s BLI I don’t want to assume.

spookshow

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Re: BLI NW2/SW7
« Reply #27 on: December 02, 2019, 01:50:13 PM »
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It's the usual BLI thing - the axle ends insert into holes in the wipers instead of dimples.

-Mark

tehachapifan

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Re: BLI NW2/SW7
« Reply #28 on: December 02, 2019, 02:54:04 PM »
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It's the usual BLI thing - the axle ends insert into holes in the wipers instead of dimples.

-Mark

Has Kato started to use this method too in some locos as well? I believe I saw some parts on their parts page that made this appear to be the case.

Russ

peteski

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Re: BLI NW2/SW7
« Reply #29 on: December 02, 2019, 04:00:08 PM »
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Has Kato started to use this method too in some locos as well? I believe I saw some parts on their parts page that made this appear to be the case.

In N scale? I have not seen that change.  Do you have any specific parts you can point to?
--- Peteski de Snarkski

-"Look at me, I'm satirical!!!"
-"Look at me, I'm anal retentive!!!"
-"Look at me, I have the most posts evahhhh!!!"
-"Look at me, I'm snarky!!!!"
-"Look at me, I have OCD!!!"
-"Look at me, I'm a curmudgeon!!!!"
-"Look at me, I'm not negative, just blunt and honest!!!"