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Mura-Lenz motors questions


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#1 Edo

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Posted 25 January 2007 - 09:34 AM

Hi, guys,
Lookit here what we got: a nice flower on a A-can Mura:

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Is it true that because of that flower that motor is worth millions?

And now a Lenz D-can size:

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The balancing hole looks typical Mura-made:

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Then we have a Mura B-can with that cute funny cool gitzmo cooler:

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BTW, why were those B-cans a failure?

This is a Mura X12:

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And here we have a C-can with a sexy colored endbell:

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I hope I did not bore you with the usual hashed and rehashed questions but I'm a slow learner and I would like to know what year were these motors made?

Kind regards,
EdoTBertoglio - Maverick assembler (formerly troubled)

Finish Line: the movie




#2 TSR

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Posted 25 January 2007 - 09:51 AM

Yo, Edo,
You found all this at the bottom of Lac Leman? :mrgreen:

Philippe de Lespinay


#3 Edo

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Posted 25 January 2007 - 10:22 AM

No way man!
Those come from chez vous.
Swiss water does not rust metal! It keeps it eternally clean!
:mrgreen:
EdoTBertoglio - Maverick assembler (formerly troubled)

Finish Line: the movie

#4 Tex

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Posted 25 January 2007 - 10:39 AM

I'm no authority on B-cans as I didn't use them that much way back when. I would think the downside of a B-can would be their width and possibly their weight. Imagine taking an A-can and squashing it flatter. Doing so gives it a lower CoG but also makes it wider. A wider can makes it harder to get a good angle for proper gear mesh. And maybe it was just a visual cue, but because the B-can was wider, it just looked "fat" and "fat" = "heavy" . . . maybe it wasn't really . . . dunno.
Richard L. Hofer

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#5 rdmac

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Posted 25 January 2007 - 10:56 AM

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Is it true that because of that flower that motor is worth millions?

Is that the much-maligned Champion "Orange Picker" endbell, minus the brass plate and bushing?

Bob McCurdy
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#6 TSR

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Posted 25 January 2007 - 11:14 AM

Bob,
Indeed it is. And it is mated to a Certus can that that received a flower sticker many moons ago. These flower stickers (as used on the Cukras motors) were very popular in the late 1960s, as the unfortunate era of beatniks and peaceniks-at-any-cost-including-freedom began rotting the civilized world. You could buy little packets of those stickers just about anywhere. I recently found a few of those new packets at Mothers, so if anyone is trying to restore a Cukras motor with a damaged flower sticker, send me a note, I will send you one.

Doing so gives it a lower CoG but also makes it wider.

That would be if you use the Tore Hammer and smash a Mura D-size can into submission. But in the case of the "B" can, it is not any wider than a 16D or a Mura "A" motor. Just lower.

The other survivors from Lake Whatever are a 1980s production Mura C-can motor with purple endbell, another with the late 1980 hole pattern and orange endbell, another with the elephant ears from the early 1980s, a standard "B" production motor from 1969 (square hole, last attempt to make that pile to work), and a Lenz second-series with the pentroof brush holders dating from early 1969.

They will require some serious cleaning and de-rusting to be presentable again . . . just what Edo loves to do in his spare time. :)

Philippe de Lespinay


#7 Bill from NH

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Posted 25 January 2007 - 12:19 PM

Hey, Dokk, what's the comm cooler doing on the can end? They were never that efficient. :lol:

Edo, these motors will provide you with sometthing to do on the long cold nights while waiting in front of the ED Store. :)

#8 TSR

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Posted 25 January 2007 - 12:28 PM

Putting a comm cooler on the can end is as useful as pi$$ing inside a violin to improve its musical tone.
Comm coolers on the end bell side are very useful. Proof is: place your finger on it after a heat in an open class race. You might get a first-degree burn from it.
Much of this heat was later collected by the elephant ears brush heat sinks, but the combination of all kept things under control.
In a world of open-class arms lasting but ONE lap of qualifying, I think that some would do well to get back to old-time basics. John Thorp was far from being a stupid man.

Philippe de Lespinay


#9 Bill from NH

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Posted 25 January 2007 - 12:45 PM

John Thorp was a man before his time, providing quality service and slot products. I hated seeing him getting involved with R/C because I didn't make than transition. :)

#10 idare2bdul

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Posted 25 January 2007 - 04:07 PM

Some of the best balancing was done by Thorp. His track for R/C was great fun if you had horsepower. A very long straight and two sweepers at the ends really rewarded horsepower. 8)
The light at the end of the tunnel is almost always a train.
Mike Boemker

#11 Pablo

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Posted 25 January 2007 - 04:27 PM

I would like a flower sticky, as I have a Cukras arm I will put in a motor someday.
(Found one for cheap in the "1/32" section where Scott wasn't looking, haha.)
You have my address, Dokk. :)

Paul Wolcott


#12 TSR

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Posted 25 January 2007 - 06:02 PM

Paul, you got it! Also for you I will have the pictures of the completed Cukras car with the body on it, as I am finishing it now . . . You will see that the body fits fine . . . :)

Philippe de Lespinay


#13 Pablo

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Posted 25 January 2007 - 08:01 PM

;)

Paul Wolcott






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