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hi Wankel Ickx
Sprint and I are talking about MBslot, producer of the liquid for breaking in the motors and other very nice accessories.
http://www.mbslot.com/IT/News.htm
The site is in Italian for the moment but soon will be in English apparently.
MBslot does beautiful aluminium wheels also and other accessories that I have tried with great satisfaction.

In the meantime I just got this vintage contraption that, in addition of the MBslot liquid, allows me to break in proprely the motors:



Thing is that when I get a new car I just cannot resist and I run it right away(even with the magnet still on!!!)
Best regards
Edo
Will I be arrested by the SF Police for promoting other peoples products ?
 

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Fergy's approach has it just right for me.
As short a time as it takes to bed in the brushes is ALL that is required.
Any more than that simply reduces the motor's life to NO gain whatever.

Submersed in liquid is fine, and again he has it right - it takes less than a tenth of the time that it does in air. But is it worth the bother and mess and the real risk of OVERdoing it? I really don't think so. Any running-in time saved is usually expended again on removing and replacing the motor, setting up the witch's cauldron and cleaning up afterwards. If you overdo it, your motor is probably screwed because most modern motors do not have replaceable brushes.
On balance, wet bedding is definitely not worth the bother.

How do you know when the brushes ARE bedded in?
Ideally by checking rpm with a rev counter, either a stand alone or on a rolling road (Kelvin Test Bench). It doesn't take long to ascertain when the motor is not improving any! Lacking a meter, then simply listen to it - the old fashioned way. The higher pitched the whine, the faster it is running, but a rev counter is better.

Just an observation on rpm, reliably ascertained using a Kelvin Test Bench.
Newly acquired cars are sometimes not well lubricated - motor bushings, gears or axle bushings. In these cases, on average , the simple act of lubrication can increase rpm (and decrease required current!) by around 10%.
In some cases by more than 15%!

Many cars ARE perfectly well pre-lubed and, again, a rev counter will soon tell you whether there is no improvement from lubing. Another tip - wick up excess oil with torn paper or a cloth.
 

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Are there any on line retailers selling the MB products? Visa or Pay Pal payment. All the way down to South Africa.

Thanks and regards
Dave

QUOTE (sprint @ 3 Dec 2004, 12:29)Hi all; as Edo said, I too have used here in Italy a fluid sold by "MB"; my first impressions are positive. First I have made a rpm reading at 12v of a used Fly motor; it turned 18900 rpm; soon after I have fully immersed the motor in the fluid and run it at 4v for 5 minutes; then for 10 seconds backwards. The final reading was 22100 rpm. I don't know if this will last or if I have broken the motor; until now I have used it for two hours and it goes well.
Other Fly motors, all used, have shown all a gain in rpm after the bath, albeit not so high.
I will soon try the fluid for break-in.

P.
<{POST_SNAPBACK}>
 

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Whoa, Tropi! You are coming over very forthright and strong in your statements, ain't ya'? Kind reminds me of the old Mopster.

I'd take issue with the no gain whatsoever argument. Surely, by running 'em in for a good while off track you do hit the sweet spot somewhat quicker than if you just lubed her up and stuck her on the track? And although I take you point about shortening the life of a motor I don't think I've ever had a motor seize up on me - mind, I do only run box standard; no extra weight or mugnuts.

I'm going to look into this Italian witch's brew and maybe give that a go.

Sorry to hear about the dampness in the bed!
 

· Brian Ferguson
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Wankel, Wankel, Wankel, my friend.... Tropi didn't say NOT to run them in! In fact, he was agreeing with my statements that "bedding" in the brushes was a good thing, but that it was counter-productive to go beyond the point where they were satisfactorily seated on the comm. Since that is the only point in "breaking in" a motor, anything more is just premature wear.

As for dampness in bed, there is a time for that.... oops, never mind!
 

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I guess Fergy had an unfair advantage over Wankel in already knowing what he and I were talking about, so he didn't need to read it as thoroughly as some!

QUOTE As for dampness in bed, there is a time for that....
Yep, I reckon that will be shortly after Wankel takes a
QUOTE look into this Italian witch's brew
Don't take it to bed Peter!


The definitive guide to motor break in procedures was published
HERE
 

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QUOTE (Fergy @ 6 Dec 2004, 20:58)I believe a good Canadian lager goes best with that pie, Wankel. ;) Enjoy! :D
<{POST_SNAPBACK}>

Pah... forget all that pie eating non-sense... Just tell me where I can get that rolling road Edo posted a pic of :)

...oh and FYI... My engine break-in method is:

Go to maplins and buy a can of switch cleaner

Get a car, leave the motor in the car, take the top off it, lube the axle at the points of contact with the (brass?) bushes, crown and pinion, etc. I use zx1 'cause it's úber-slippery.

Using a 'straw-nozle', find a 'hole' in the motor and spray a SMALL amount of switch cleaner into it... TRY to get the contrate and brushes if you can.

Run it max for about 30 seconds.

Top back on...

Race it...

I spray a bit each race-night, while doing warm ups etc... Motors are only a few £ in my category of racing... they'll last a year of racing in that category or longer... When they die, get a new one and repeat...
 
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