Model Power purchased the assets of Mantua and now manufacture some of
the Mantua items:
Bill's Railroad Empire
N Scale Model Railroad:
Brief History of N Scale:
Model Railroad Books, Toys, and Trains:
Resources--Links to 1,200 sites:
Minor gloat. Back while Mantua was still in business I got a can
motor repower kit from their parts dept. It fit into a Mantua Pacific
with no hassles.
I took the trouble to test Pacific's before and after performance.
With the stock open frame Pittman motor lowest speed was about 5 scale
mph (not too shabby). The can motor could do 0.01 scale mph. That's
creeping forward tie by tie.
The kit wasn't very fancy, just the motor and a cast Zamac motor
mount, and it was advertised to fit most of the Mantua steamers. The
motor mount allowed a drop in, no filing, drilling, or milling installaton.
You might check with Walthers for the kits. I coulda swore I saw
the kit in the '07 Walthers catalog a few weeks ago, but I couldn't find
it again when I looked this morning.
To swap in just any old can motor, like from NWSL, all you need do
is find one small enough to fit. Check the shaft diameter. If the
shaft diameter doesn't match up you will need a new worm to fit the new
And you will need to make a motor mount out of something. Brass bar
In many cases, Helix Humpers do require some work to the boiler casting to
get them to fit. This isn't as hard as it might sound though... I bought a
rotary file at my local hardware store and used it in my drill press.
First, I drilled out a lot of the excess material then went to work with the
rotary file. Even with this very crude set-up, I had most of the work done
in an hour or so.
Don't get a small rotary grinding stone though... they will fill up almost
immediately with metal and become worthless.
How is the performance with the HH? I have two old Mantua engines
and one yet-unbuilt kit, and I am thinking of springing for the
one of the PM-1's has a bent shaft anyway.
President, a box of track, a wet basement, and some plans
I can't say. I never really installed one. What I did was to put a Mikado
boiler on a 2-6-6-2 logger chassis. To do that, I needed to remove some of
the boiler material. That is where my experience in that area came from.
I've never seen an HH unit, only pictures. But some of them almost look
like they have a combination flywheel and worm gear. They have a web site
that does have pictures of most of their products. You can find them doing
a Google search. It is www.alliance or something like that with their
extension after that.
You can surf over to here: www.yardbirdtrains.com and see if what
they have to offer is what you need. They have a lot of replacement
parts and such for Mantua/Bowser/Varney locos. I think most of their
parts can be bid on at eBay auctions, but you can also ask them to
quote you a price on an order.
HTH......TH in TX
NewsProxy: Allowing me to blissfully avoid the havoc
Sagami from NWSL.
Both these brands are top quality conventional can motors, although
Mashima also does some excellent open frame motors.
The size is going to be dependent upon the space available inside the
loco body. Width is probably the most important, but the largest
diameter armature/motor that will fit the particular model, but probably
the original motor's height (ignoring brushes and mounts) will set the
(each step up in armature diameter (gen.2mm) adds about 50% in torque
and reduces operating revs by a similar amount)
I personally prefer to fit a slightly shorter motor with a flywheel
rather than the maximum length motor.
(for any given diameter of armature the torque will aproximately be in
proportion to the pole length)
I also prefer to fit a NWSL gearbox and universal rather than mounting a
worm to the motor shaft.
Sorry I can't be specific about precise motor loco combinations because
I no longer have any of the converted Mantua locos in my collection.
And of course Mantua & Tyco produced such a huge quantity that
original stuff is still VERY plentiful on Ebay and at train shows...
thoughts of those who price-tag some of this L@@K RARE
Has anybody out there sprung for one of the Mantua Classics
models yet, so they can tell us what sort of changes MP might
have made? I'm wondering if these have can motors now, since
they're probably cheaper than knockoff Pittmans.
President, a box of track and some plans.
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