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Adding weight

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  • Member since
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Adding weight
Posted by SouthPenn on Wednesday, May 11, 2016 11:37 AM

While I had the bodies off this consist, I decided to add some weight to the engines. This is what I came up with. I test ran the consist and there is no wheel slippage anywhere on the layout. They even fit through all my tunnels and bridges.

The only problem I can see is getting the bodies back on.   Wink

 

 

South Penn
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  • From: SE. WI.
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Posted by mbinsewi on Wednesday, May 11, 2016 11:50 AM

Thats why the Dremel tools are so handy and a "must" have item.  Laugh

Mike.

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  • From: Bakersfield, CA 93308
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Posted by RR_Mel on Wednesday, May 11, 2016 12:39 PM

I had that problem too, I solved it by using #8 bird shot.  I picked up a 25 pound bag for about $20 at a local gun shop.  I tried several different adhesives and plain old Harbor Freight Super Glue ($4.49 for .7 oz) worked the best.  I added 10 ounces to a Rivarossi Cab Forward and it will pull the paint off the walls, it has a Faulhaber 2224SR motor and it runs cool too.  
 
 
 
 
I went a bit over board but my Dremel took care of it.
 
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
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Posted by SouthPenn on Wednesday, May 11, 2016 12:44 PM

Maybe I could use the roof off of an observation car?

An EMD F7 Observation engine?

South Penn
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Posted by SouthPenn on Wednesday, May 11, 2016 1:45 PM

Back to the drawing board.

South Penn
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  • From: 10,430’ (3,179 m)
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Posted by jjdamnit on Wednesday, May 11, 2016 3:45 PM

Hello all,

The added weight doesn't look bad...

It's the purple that looks out of place!

Hope this helps.

"Uhh...I didn’t know it was 'impossible' I just made it work...sorry"

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Posted by kasskaboose on Thursday, May 12, 2016 7:57 AM

Weight a minute (couldn't resist)!  Super Angry

Are your cars below NMRA weight standards?  I would suggest adding weight using fishing sinkers.  If you need signifcantly more weight, perhaps get metal weight plates.  I don't know who sells them...

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  • From: Canada, eh?
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Posted by doctorwayne on Thursday, May 12, 2016 8:51 AM

SouthPenn
....I test ran the consist and there is no wheel slippage anywhere on the layout.....

There's no reason why you should expect wheelslip with only the weighted locomotive running.  However, when adding weight to locomotives, it's good practice to test for wheelslip when the loco is under load. 
To do so, couple a car to the loco, then, while holding the car in place, apply power - the loco will attempt to move the car, but the wheels will eventually slip - this indicates that the loco is not too heavy, and when overtaxed, can still slip its wheels, which will protect the motor from burnout.  (For a steam loco, simply hold the tender while performing this test.)
I once added so much weight to a Tyco C-430 that it couldn't slip its wheels and, fortunately, removed some before the pancake-style motor fried itself.
While many diesels have ample room for added weight (less so with decoders and speakers, though), most steam engines can handle more weight than can be fit into them.

My Athearn Mikados, notoriously poor pullers, could still slip their drivers with a 20 oz. saddle of sheet lead draped over their boilers, but I was able to add only 5 oz. internally.  However, because the added weight balanced the total weight at the centre-point of the driver wheelbase, it was enough to turn them into decent pullers:

If you're having trouble fitting sufficient weight into your locos, Mel's suggestion of using birdshot is a good one.
Using custom-cast lead weights, I was able to bring my re-motored Athearn U-boats up to 33oz. apiece, giving them each a measured drawbar pull of 8.3oz.:

 

There's some info HERE on casting your own weights.

Wayne

 

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Posted by RR_Mel on Thursday, May 12, 2016 9:31 AM

I like your twin Mashima motors in a diesel Wayne, I hadn’t thought about doing that.  I’ve installed two Canon EN22s in some of my articulated Rivarossis and added 10 ounces of weight.  They will keep up with the big guys with that arrangement.
 
Great link to the Blue Trains Forum!  
 
 
Mel
 
Modeling the early to mid 1950s SP in HO scale since 1951
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
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Posted by SouthPenn on Thursday, May 12, 2016 11:46 AM

Making the custom weights looks like a good way to add weight in odd places.

I have been buying self sticking lead weights from here and here.

 

South Penn
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  • From: Weymouth, Ma.
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Posted by bogp40 on Thursday, May 12, 2016 2:57 PM

SouthPenn

Making the custom weights looks like a good way to add weight in odd places.

I have been buying self sticking lead weights from here and here.

 

 

Another product to not overlook for moldable weight, is sheet lead roof/ chimney flashing. It can usually be bought in smaller quantities off the 6, 8 0r 10" roll and sold by weight. have used this to add weight to small, tight spaces. Beside cutting and fitting as you shape, you can also score and fold to any thickness to fit in that obscure space. I generally will hold with contact cement or Pliobond. Use care on thin plastic as too much (wet) contact cementma y attack the plastic. In that case silicone, adhesive caulk or double sided tape may be better.

Modeling B&O- Chessie  Bob K.  www.ssmrc.org

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Posted by SouthPenn on Friday, May 13, 2016 7:52 AM

I found sheet lead at Amazon. Cool.

South Penn
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  • From: Franconia, NH
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Posted by dstarr on Friday, May 13, 2016 10:41 AM

It is true that you need to make sure that the motor will still turn, slipping the wheels, when the locomotive gets stuck and cannot move.  The motor will draw more and more current attempting to turn, if it cannot turn it will get too hot, and eventually melt off some insulation in the armature. 

  However, this is not usually a problem in HO.  I have never been able to pack enough weight inside an HO locomotive to prevent the wheels for turning when the locomotive cannot move. 

  I been using sheet lead flashing which I get at the local lumber yard.  It is nice and soft, cuts easily with tin snips, and lead is the best there is for packing a lot of weight into a small space.  I secure the lead in place with silicone bathtub caulk.  I pickle the lead in supermarket vinegar to roughen up the surface and give the caulk something to grab onto. 

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Posted by bogp40 on Friday, May 13, 2016 4:36 PM

SouthPenn

I found sheet lead at Amazon. Cool.

 

Great, only trouble with buying unseen products like this, unless tey specify the thickness, you could end up w/ inferior or too thin lead flashing. I use lead flashing professionally and have found it has been getting quite thin, esspecially at discount, chain hardware and hone centers. Sometimes the thinner is easier to use for flashing, but the heavier is more suited for weight. My reason for recommending decent hardware stores, roofing suppliers or quality lumber yard for the better product.

Do remember as you work w/ lead, avoid rubbing face, eyes or mouth, and wash hands after use.

Modeling B&O- Chessie  Bob K.  www.ssmrc.org

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