Mini-Z, Kyosho Mini-Z Racer, MR-03, MR-02, MA-010, Forums, News, Pictures, Parts, and Shop - Mini-ZRacer.com
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 2019.02.12, 03:17 PM   #1
LJH
Registered User
 
Join Date: Aug 2018
Location: SW Conneticut
Posts: 17
Freeing up ball joints

Hello All,
I just installed the Kyosho MZW416 tube shock front end on my 90MM MR03 and it seems to have helped a bit as the car now holds the all time lap record on my mini-96 tracks. With that said I am still not happy with how free the balls are in the front arms. I went as far as using a very mild polishing compound and turning a kingpin in a drill in the hopes of loosening them up and while it got a bit better it is not terribly free.

How do you guys go about freeing up the ball joints on your Mini-Z's?

Cheers,
Jim
LJH is offline   Reply With Quote
Old 2019.02.12, 03:41 PM   #2
cowboysir
epic procrastinator
 
Join Date: Jul 2006
Location: Whistler, B.C.
Posts: 2,198
I've done the same thing (drill mounted) with Mothers Metal polish and that did the trick for me.
__________________
I wonder what rocket scientists say to their coworkers when one of them doesn't get it?

my custom body album...
http://mini-zracer.com/forums/album.php?albumid=192
cowboysir is offline   Reply With Quote
Old 2019.02.12, 03:47 PM   #3
LJH
Registered User
 
Join Date: Aug 2018
Location: SW Conneticut
Posts: 17
Quote:
Originally Posted by cowboysir View Post
I've done the same thing (drill mounted) with Mothers Metal polish and that did the trick for me.
Copy that, I may just have to get more aggressive with the compound. I used McGuire's Scratch-X which is very mild.

Thanks.

Cheers,
Jim

Last edited by LJH; 2019.02.12 at 03:52 PM.
LJH is offline   Reply With Quote
Old 2019.02.12, 06:04 PM   #4
herman
Registered User
 
Join Date: Nov 2001
Location: makati, philippines
Posts: 8,675
I've read a tip somewhere... invert the kingpins...
Haven't actually tried it, but it might help...
herman is offline   Reply With Quote
Old 2019.02.12, 08:06 PM   #5
LJH
Registered User
 
Join Date: Aug 2018
Location: SW Conneticut
Posts: 17
Quote:
Originally Posted by herman View Post
I've read a tip somewhere... invert the kingpins...
Haven't actually tried it, but it might help...
I have been running inverted kingpins pretty much fo day one.

Cheers,
Jim
LJH is offline   Reply With Quote
Old 2019.02.12, 08:15 PM   #6
EMU
EMUracing
 
EMU's Avatar
 
Join Date: Oct 2004
Location: NYC
Posts: 7,368
Send a message via AIM to EMU
Mothers polish, and keep the duration of polishing relatively short. You want to minimize heat when polishing. Break it up into 5s spin and cool cycles, If you can reverse the direction the pin spins when polishing.

I find that if you get the plastic too warm, it will loosen up momentarily, but after cooling it is tight.
__________________
EMUracing
Micro RC Syndicate /DG Designs /GSR /Reflex Racing /Fast By Faqish /MurderTown Racing
EMU is offline   Reply With Quote
Old 2019.02.13, 05:24 AM   #7
will3kgt
Registered User
 
Join Date: Dec 2004
Location: Grand Blanc, MI
Posts: 711
Quote:
Originally Posted by LJH View Post
I have been running inverted kingpins pretty much fo day one.

Cheers,
Jim
Me too, never had a problem.
will3kgt is offline   Reply With Quote
Reply

Bookmarks

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
MR03 Ball Joints ShortBus Mini-Z Racer MR-03, MR-03 VE, Sports Series, EVO 9 2018.12.15 08:28 PM
Ball diff changes... HaCo Mini-Z Racer MR-02 4 2007.07.15 03:26 PM
unnamed ball diff setup with bearings bendalf Setups 4 2002.07.22 05:46 AM
Ball diff problem bobman Parts and Hop-ups 15 2002.03.01 09:32 PM
Ball Diff Ball Diff Ball Diff Ball Diff II Chezedog Mini-Z F1 MF-010, MF-015 1 2002.02.27 02:40 PM


All times are GMT -5. The time now is 12:33 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2011 Mini-ZRacer.com
Mini Inferno Sale - Up to $85 Instant Savings!
Micro-T Hop-Ups
RC18R, M18, Micro RS4, Mini-LST, TamTech-Gear, Minizilla, RC18T, RC18B, RC18MT
shop.tinyrc.com Products

more»
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] shop.tinyrc.com: Have You... : Hey All! Just a quick reminder to everyone that we post all of our shop.tinyrc.com 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