Were poly suspension bushings always this cheap? - Page 4 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

General Miata Chat A place to talk about anything Miata

LinkBack Thread Tools
Old 02-21-2008, 10:37 AM   #61
Elite Member
iTrader: (39)
Zabac's Avatar
Join Date: Sep 2007
Location: High Point NC
Posts: 4,854
Total Cats: 8

Originally Posted by RotorNutFD3S View Post
I'm interested in the group buy going on since new bushings are on the to-do list. However, I've read a lot of complaints about noise with poly bushings, while others have no issues. What gives?
Also, some sites I've been reading while researching the topic say to avoid bushings with graphite because it doesn't come in contact properly with the metal, and when it does, it washes away too easily. And graphite also can cause the polyurethane to deteriorate if there is too much in it.
Just want some things cleared up before I go for this...
the harsher your suspension components the higher the NVH, so yeah it will be a bit louder i guess...

can you elaborate on the graphite deteriorating the poly?
i heared that more graphite is better actually, but that was just word of mouff
Zabac is offline   Reply With Quote
Old 02-21-2008, 11:09 AM   #62
Elite Member
iTrader: (33)
RotorNutFD3S's Avatar
Join Date: Jan 2007
Location: Newnan, GA
Posts: 2,539
Total Cats: 29

Oops, let me clarify, when I say noise, I mean squeaks. I've read that a lot of poly components will start squeaking a lot either when really new or over time. But after doing a whole bunch of reading/research last night on different sets such as the SuperPros that Emilio sells, and some other kits, it seems that if you install it right the first time you shouldn't have any issues. And in the chance that you do, putting in Zerk fittings and slightly channeling the bushing when installing is a good idea.

As far as the graphite issue goes, feedback on various forums I read last night said that the graphite impregnated bushings squeaked like hell. So I did some searching away from forums and most sites I found agreed to the point that blending into polyurethane does not work because basically the graphite is an impurity and the urethane encapsulates it. So it won't act as a lubricant because it won't be touching the metal. (And any that does end up on the outside of the urethane wears away rather quickly.) And if too much graphite is added, the bonds in the urethane are not strong because it's attempting to bond to a lubricant and it breaks down rapidly.
But that's just what I found out on the internet, I'm no scientist, so I'm not defending this position nor am I saying it's correct information.
RotorNutFD3S is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 01:45 AM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM

Thread Tools

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 05:58 PM.