23 replies to this topic

[Alan Draht]

Recently purchased eight CR102 Gen 19 motors online.  Break-in procedure for all:  15 minute run times @ 5 volts each.  After break-in the motors were returned to their original packaging and put away for a couple of weeks.

 

Today I prepared to install two new motors.  But when I examined the motors closely I discovered a gooey substance on the cans near the ventilation holes.  Upon closer inspection using a flashlight and Opti-Visor magnifiers I found the gooey substance originated from inside the motors.  It appears that the substance is uncured epoxy resin used to bond the neo magnets to the inside of the cans.  In both motors, the goo is on the magnets and on the armature.  The substance actually bridges the air gap between the arm and the magnets.

 

I examined the remaining six Gen 19 motors in my inventory and they all have resin inside of them.

 

No Bueno.  None of these motors are going into any of my Fall Brawl race cars.

 

 

 

 

 

 

 

 

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[Alan Draht]

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[Don Weaver]

Did you bring this to Mike's attention?

[Chubby]

😂 its been going on for a while now, go buy more, eventually youll find one that the mags are cleared of the arm.

[MSwiss]

No complaints about 19's that I heard of.

 

I had 5 sitting here that I didn't ship because they were too rattling too much for me.

 

I opened one up. Obviously, no goo.

 

Looking at the other 4 with an otoscope, I didn't spot any goo.

 

I took a couple pics of them.

 

I included some tech sheets from a couple top racers who podiumed in regional races.

 

Not sure if they are with goo, or without.

 

Also, Matt Sheldon from Duffy's got 100 G19's for his big race in July, that he used for handouts.

 

He told me before the race they were running great.

 

Maybe contact him to see if he has any goo insight.

 

Edit-the magnets on any motor I've ever taken apart are not glued in. They are held in with clips.

 

PS-did you spray the motor out with a chemical after break-in ?

 

 

 

 

 

 

[Alan Draht]

All eight have gooey, sticky residue inside the cans, visible on the arms, on the magnets -- in the photos.  Don't know if the magnets are bonded or not to the insides of the can.  Never opened up a CR102 Stage 2 motor.  Don't plan on opening any of these Generation 19 motors either.  Once I do that, it's my problem. 

 

I propose the following.

 

I will ship all eight motors to you directly.  You open them up.  Inspect the insides before you do that.  See the same residue in the same places as shown in the photos.  Then tell me that what you find is acceptable, meets your QC standards.  If not, then deal with your supplier to resolve the problem.   

 

Meanwhile, please ship eight good replacement motors to me.  Thank you!

 

And, no, I didn't spray chemicals on or into the motor during or after break-in.  Nor did I myself inject resin-like residue inside eight brand new motors to troll anyone.

[MSwiss]

I test every motor and pack every motor personally.

 

I find it odd that I wouldn't spot those clumps of whatever on the armature or magnets and none of the motors I have left would show any sign of it.

 

Also, I started shipping these motors 3 months ago and I've had zero complaints.

 

We race them on Wednesday night in our GTP class with zero issues.

 

Anyway,  send them to my home.

Mike Swiss

692 Citadel Drive

Westmont, I'll. 60559

 

Also, include any packaging you might have left and who you bought them from.

 

Do NOT mention that vendor in this thread.

[Matt Sheldon]

What did you use to clean out the motor?

 

We have sold roughly 130 #19 batch with the first 100 being received at the end of July. Not one single issue via customer or personally with them. Equally they have been really consistent. 

[Noose]

The "goo" may be a lubricant in a gel form (like vaseline),  If that is the case "i've had some of them over the years with various generations and have not had any problems with them. 

[Bill Seitz]

I'm not aware of how the CR102 motors are put together, but some other Chinese motors I've had apart use what looks like an adhesive tape square behind the magnets in addition to the magnet clips. I've not had the adhesive flow in any motor of mine, but heat or some solvent might cause that. The interesting point in the complaint here is that the motors seemed to be fine when they were broken in, no mention of any issue, but after break-in and sitting, they now have some substance bleeding out of them.

[Alan Draht]

The "goo" may be a lubricant in a gel form (like vaseline),  If that is the case "i've had some of them over the years with various generations and have not had any problems with them. 

 

Thanks, Noose.  I was wondering the same thing.  The substance isn't really viscous like vaseline, though.

 

Anyway, I am going to ship the lot to Mike.  If Mike deems the goo harmless then he can ship the same motors back to me.  I'll pay the shipping cost.  If non-standard, then new replacement motors shipped to me resolves the problem. 

[Noose]

Mine wasn’t real thick either but thicker than an oil liquid type.


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[Alan Draht]

Noose,

 

Could be the same stuff as you're describing ... 

 

If Mike Swiss inspected these motors before shipping them out and his re-inspection of the returned motors confirms they conform with his product's QC standards, then he can report all of that here on this forum and ship the good motors back to me at my expense.  Otherwise, I'd like clean new replacements like the pristine motors other racers have already podiumed with.

 

I've bought a fair number of CR102 motors, Generations 8 through 19.  I've never had any problems with the motors.  This batch is the first time I've ever seen the gooey material.  Installing the motors without Swiss's re-inspection and seal of approval is pointless.

[MSwiss]

The "goo" may be a lubricant in a gel form (like vaseline),  If that is the case "i've had some of them over the years with various generations and have not had any problems with them. 

Yes, there is some sort of grease on the can BB.

 

Sometimes it's applied fairly neatly.

 

Other times it's pretty sloppy with strings of it extending away from the BB.

[JerseyJohn]

I break in Pat Skeg's motors and he wins many races.. Before I run in or do anything to these motors, I first flush them out to clear all manufacturing residue and particles so that nothing could score or hurt the Com. Any electronic cleaner that doesn't leave a residue will be fine.

[MSwiss]

I received the 8 motors from Alan on Monday night, at 

my home.

 

I went and picked them up after my mail order drop off.

 

Before I had a chance to look at them closely, at the raceway, I went to dinner and called a racer who I knew had a number of the G19's.

 

He said he had broken in all of them, and dyno'ed them, and they all ran fine/ nothing seemed abnormal.

 

I finished dinner and went back to the raceway to examine Alan's motors.

 

I tried a few on the tester and they all ran fine, including the gunked up one in post #1 & 2.

 

I ran some lane sticker backing paper through the air gap in a couple of motors and they did come up sticky when I pulled it out. 

 

I took apart the pictured motor  from the original post and the face of the face of the magnets was sticky.

 

I removed the magnets and as I mentioned, the magnets are not glued in.

 

They rely on the clips to hold them in place.

 

I checked the air gap on the couple of G19's I had in stock and and while I couldn't see anything, when I inserted the lane sticker paper in the air gap, it came out a bit sticky.

 

I then went and looked for the G19 I had taken apart to check the arm resistance.

 

I found  the motor and noticed the magnet clips had a couple of small dabs of glue up against the can.

 

Apparently my vendor tried this to help keep the clip in place.

 

The glue isn't cured so I'm not exactly sure what their thought was.

 

The face of one mag had a tiny, tiny stick spot.

 

My conclusion;

 

In the process of gluing that clip in, the face of the magnets gets varying amounts of stickiness, either from the instrument they use to apply the glue, or the assemblers fingers.

 

I know with my CR206 open can motor, where the magnets are glued in, the outside of the can is usually sticky, I assume from handling.

 

As Matt's testimony, the motors being in the pictured podium cars, running here at CR, etc., it doesn’t affect performance.

 

I'll keep the motors Alan sent back and sell them to my locals, drag racers, etc.

 

I sent back 9 (an extra one to compensate him for shipping) G21's to Alan yesterday.

 

I checked them along with the small amount of G20's I still have, with the backing paper test, and my vendor apparently has abandoned that experiment(?).

 

My apologies to Alan for the situation. 

 

 

 

[Alan Draht]

Thank you, Mike!

 

Your quick response and due diligence in this matter are exemplary and much appreciated.

 

Long live the CR102 Stage 2 motor!!

[John Luongo]

First class investigation and customer support! 

[Alan Draht]

I received Mike's shipment today. It contains nine new immaculate Gen 21 motors. So, no excuses for me at Fall Brawl 15 as far as motors are concerned.

 

Thanks again, Mike!

 

 

 

 

 

[MSwiss]

Glad they came overnight.

 

Good luck at the race.

 

You should join us sometime for our Wednesday night GTP races, so you can get some trigger time.

[Klibby]

Can I ship back 75 and get new ones lol. I have never not had this happen and all I do is 5v for an hour no chemicals or anything and have won many races. Im not being sarcastic just its not anything new but nothing gets mentioned because well you know 🤷‍♂

[slotcarone]

Can I ship back 75 and get new ones lol. I have never not had this happen and all I do is 5v for an hour no chemicals or anything and have won many races. Im not being sarcastic just its not anything new but nothing gets mentioned because well you know ‍♂

 

Who is this Klibby guy? LOL.

[Klibby]

Just some old washed up slot racer 🤣🤣

[Chubby]

Can I ship back 75 and get new ones lol. I have never not had this happen and all I do is 5v for an hour no chemicals or anything and have won many races. Im not being sarcastic just its not anything new but nothing gets mentioned because well you know 🤷‍♂

Got ya beat by a couple of hundred, some things will never change. Gotta love it, racing is striving 😝