Mini-Z, Kyosho Mini-Z Racer, MR-03, MR-02, MA-010, Forums, News, Pictures, Parts, and Shop -
Forums, Mini-Z, MiniZ, Kyosho Mini-Z, Kyosho MiniZ, Kyosho Mini-Z Racer
Mini-Z Hop-Ups, Mini-Z Parts, MiniZ Hop-Ups, MiniZ Parts, Kyosho Mini-Z Hop-Ups, Kyosho Mini-Z Parts, Kyosho MiniZ Hop-Ups, Kyosho MiniZ Parts, Kyosho Mini-Z Racer Hop-Ups, Racer Kyosho Mini-Z Parts
Old 2017.02.13, 05:56 PM   #1
Registered User
Join Date: Feb 2017
Posts: 7
Gear mesh issue?

Hello, I am a new user on this forum but have been collecting and racing mini-z's for awhile now. I recently purchased the ASF buggy and put a 48t atomic ball bearing standard motor in it. After a few minutes of running it at half throttle the motor was getting very hot (110 degrees). I noticed that the buggy does not coast when you push it by hand, it has some resistance unlike my Ma-020 and Mr03's( which glide when pushed by hand to check mesh). Almost feels like it is binding but when driving it there is no abnormal noise and seems to perform fine. Is that normal? I do not recall how the buggy felt with the stock motor in it.

I have ordered alloy motor plates and mount for the buggy, since I thought it would be useful for this motor.
Mughal86 is offline   Reply With Quote
Old 2017.02.14, 10:17 AM   #2
EMU's Avatar
Join Date: Oct 2004
Location: NYC
Posts: 7,416
Send a message via AIM to EMU
What gearing are you using with the motor? Did you change the size of the pinion/spur when you switched to the ATM Stock motor?

You could try a smaller pinion and see if it helps reduce heat.

It may take a little time for the motor to break in, and wear the brush a little. This will help reduce drag on the motor. This motor has more drag than the Kyosho motors. The brush springs are stiffer, and the magnets are MUCH stronger. 110f is a little high for what I would want to see.
Micro RC Syndicate /DG Designs /GSR /Reflex Racing /Fast By Faqish /MurderTown Racing
EMU is offline   Reply With Quote
Old 2017.02.16, 09:40 AM   #3
Registered User
Join Date: Feb 2017
Posts: 7
With the stock motor I had it geared at 7.7:1(15t pinion 33t spur). It was fairly cool even after 10-15 min run time. That is what I currently have in the buggy with the Atomic 48t motor. Maybe I should run 8.88:1(13t pinion 33T spur)? Along with the motor heat sink and alum motor plates the temps should drop with this gearing. I run it on a RCP track mini 96 with the expansion kit. Should I change the slipper clutch due to increase power of motor? Or should the stock slipper clutch be ok? Any other mods recommended to increase drive train efficiency?
Mughal86 is offline   Reply With Quote
Old 2017.03.09, 03:46 PM   #4
Registered User
Join Date: Feb 2017
Posts: 7
I have Just installed the Kyosho motor heat sink and aluminum plates on my buggy. I am using Atomic 48t standard motor. Upon installing the new option parts I noticed that the Heat sink when fully seated to the chassis creates too tight of a gear mesh. In the instruction manual it says to back out the screws 90 degrees if the mesh seems to tight. I had to back out the screws at least 720 degrees to get the buggy to roll better and not bind. Is this normal? I noticed that the aluminum plates came with 3 different size motor holders( 6.0, 6.1, and 6.2). I used the 6.2 at first and the problem was worse. I tried the 6.1 and it is better. The 6.0 does not fit on the motor. The plastic Heat sink seems to fit perfectly fine and the screws sit flat on the chassis, with the Aluminum motor heat sink I have to back out the screws quite a bit. Is this normal?
Mughal86 is offline   Reply With Quote
Old 2017.03.09, 04:15 PM   #5
epic procrastinator
Join Date: Jul 2006
Location: Whistler, B.C.
Posts: 2,214
what kind of fitment issue is the 6.0 holder showing when you say it doesn't fit on the motor?

My guess (since I don't have a buggy) is that the 6.0, 6.1 and 6.2 plates all require a certain gear ratio for spur and pinion....I imagine you could find that info here somewhere.
I wonder what rocket scientists say to their coworkers when one of them doesn't get it?

my custom body album...
cowboysir is offline   Reply With Quote
Old 2017.03.09, 07:05 PM   #6
Registered User
Join Date: Feb 2017
Posts: 7
The 6.0,6.1,6.2 refer not to the motor plates, but to the aluminum round spacer that goes on the portion of the motor where the pinion is attached. That spacer goes on first then the motor plate goes over it. I believe the sizes are for different motors. As all motors do not have the same diameter holder. E.g stock kyosho motor vs Atomic motor.
Mughal86 is offline   Reply With Quote
Old 2017.03.21, 09:38 AM   #7
Registered User
Join Date: Feb 2017
Posts: 7
Problem fixed!

The problem was the motor, it did not sit flush with the motor case, there was a few mm of space which was causing it to bind. I put in an Xspeed motor and it fit perfectly. The Atomic motor has two metal ridges on top of the motor which does no allow the motor to sit flush.
Mughal86 is offline   Reply With Quote


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with gear mesh. thestug Mini-Z AWD MA-010, MA-015 3 2011.04.07 03:41 PM
Getting the correct gear mesh littleleon Mini-Z AWD MA-010, MA-015 6 2010.03.10 11:03 AM
Stock AWD Gear Diffs - Dry or with 15k grease? Felix2010 Mini-Z AWD MA-010, MA-015 12 2009.08.09 11:05 PM
GPM .. they have many parts.. are they all available? bcuzau Mini-Z AWD MA-010, MA-015 5 2006.03.14 08:12 AM
Help again, trying to mesh pinion gear w/ diff gear!!! walds11 Beginner Questions 2 2003.06.11 04:06 PM

All times are GMT -5. The time now is 08:56 AM.

Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2011
Mini Inferno Sale - Up to $85 Instant Savings!
Micro-T Hop-Ups
RC18R, M18, Micro RS4, Mini-LST, TamTech-Gear, Minizilla, RC18T, RC18B, RC18MT Products

Tiny RC Community News
[03/22/17] MZR was on vacation, didn't... : All kidding aside, the host experienced a bit of a server meltdown last week and efforts to restore the site to a new server took longer than anticipated. The current server is temporary until - more»
[11/25/15] Did You Hear? Our Black... : Hey Racers,
We're getting started a bit early with our Black Friday sale this year.  Generally we're not supporters of retailers opening early on Thanksgiving, but in our case, we're - more»
[06/30/15] Have You... : Hey All! Just a quick reminder to everyone that we post all of our Newletters here on the MZR Forum. If for some reason you miss them in your email inbox, you can always see the - more»
Mini-Z, Mini-Z Racer, MR-02, MA-010
M18, M18T, RC18T, Mini-LST, Mini-T, Micro RS4, XRay, 1/18, 18th scale
XMODS, XMOD, Micro Flight, ZipZaps, ZipZaps SE, Bit Char-G, MicroSizers, TTTT, Plantraco Desktop Rover, SuperSlicks, Digi Q
Mini Inferno, Mini Inferno ST, half EIGHT, 1/16, 16th scale
Epoch, Indoor Racer, 1/43, 43rd scale
E-Savage, eSavage, eZilla, e-Zilla, HPI
Robots, Bots, Bipeds, Wheeled, Manoi, Roomba, NXT, Lego, Hacking
Crawling, Crawlers, Micro, RC, Losi Mini-Rock Crawler, Duratrax Cliff Climber
Kyosho Minium, Caliber 120, Minium Forums
Mini-Z Hop-Ups, Mini-Z Parts, Mini Inferno Hop-Ups, Mini Inferno Parts, M18 Hop-Ups, M18 Parts