Where to Apply Syn Grease to Poly Bushings - CorvetteForum - Chevrolet Corvette Forum Discussion

Notices
C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Where to Apply Syn Grease to Poly Bushings

Old 06-13-2018, 01:51 PM
  #1  
81c3
CF Senior Member
Thread Starter
 
81c3's Avatar
 
Member Since: Dec 2005
Location: Royal Gorge area Colorado
Posts: 7,213
Thanked 244 Times in 208 Posts
Default Where to Apply Syn Grease to Poly Bushings

Quick question.... when assembling the poly bushings, the bore of the part is not lubed, nor is the outer portion of the bushing correct?

I should only lube the inner bore and the outer part of the sleeve... is that right?

81c3 is offline  
Old 06-13-2018, 05:34 PM
  #2  
mtwoolford
CF Senior Member
 
Member Since: Jan 2009
Location: folsom california
Posts: 3,184
Thanked 119 Times in 115 Posts
Default

I lube everything; Anything that can be lubed is lubed.
mtwoolford is offline  
The Following User Says Thank You to mtwoolford For This Useful Post:
ctmccloskey (06-13-2018)
Old 06-13-2018, 07:17 PM
  #3  
Pwnage1337
Tech Contributor
 
Pwnage1337's Avatar
 
Member Since: Oct 2008
Location: Custer, WI
Posts: 3,176
Thanked 32 Times in 30 Posts
Default

Originally Posted by mtwoolford View Post
I lube everything; Anything that can be lubed is lubed.
Same. I smothered the shhhh out of mine because I had the grease and didn't want it to squeak.
Pwnage1337 is offline  
Old 06-14-2018, 08:02 AM
  #4  
MatthewMiller
CF Senior Member
 
MatthewMiller's Avatar
 
Member Since: Aug 2015
Location: St. Charles MO
Posts: 1,877
Thanked 275 Times in 229 Posts
Default

Originally Posted by 81c3 View Post
I should only lube the inner bore and the outer part of the sleeve... is that right?
That's what I'd do. The sleeve that rides in the inner bore is supposed to rotate within the inner bore. So that definitely needs to be lubed. The urethane is not supposed to spin inside the outer metal shell. So I would not put grease on the outer surface of the urethane.
MatthewMiller is online now  
Old 06-14-2018, 09:01 AM
  #5  
adamsullivan44
CF Member
 
Member Since: Jul 2017
Posts: 75
Thanked 1 Time in 1 Post
Default Lube everything!

I recently spoke with the tech guy at Prothane, because one of my newly installed poly bushings on a control rod was rotating within the rod. They recommended lubing the bushings anywhere the polyurethane comes in contact with metal. Even the outside diameter of the bushings that gets pressed into the rods. Again, following the lube everywhere the bushing contacts metal, they also recommender to lube the "face" of the bushings where it connects to the brackets or spindles, etc.

He also said that (although not officially recommended by the manufacture,) you can use any type of weatherproof lube, such as an anti seize to lubricate the bushings. Since I was out of the specimen sized tubes of their special lube, I used some Copper based anti-seize on a few of the outside diameters, that are not supposed to move. I would stick to the special lube that the manufacture supplies with their bushings for lubing the inside diameter of the bushing where the metal sleeve is supposed to rotate within the bushing.

Last edited by adamsullivan44; 06-14-2018 at 09:08 AM. Reason: Not done
adamsullivan44 is offline  
Old 06-14-2018, 09:10 AM
  #6  
81c3
CF Senior Member
Thread Starter
 
81c3's Avatar
 
Member Since: Dec 2005
Location: Royal Gorge area Colorado
Posts: 7,213
Thanked 244 Times in 208 Posts
Default

Originally Posted by MatthewMiller View Post
That's what I'd do. The sleeve that rides in the inner bore is supposed to rotate within the inner bore. So that definitely needs to be lubed. The urethane is not supposed to spin inside the outer metal shell. So I would not put grease on the outer surface of the urethane.
This is what Im leaning towards. VB&P also shows a video on doing it this way and it said several times NOT to lube the outer part of the bushing where it fits into the bore. Only lube the "working" parts of the bushing.
81c3 is offline  
Old 06-14-2018, 03:46 PM
  #7  
MatthewMiller
CF Senior Member
 
MatthewMiller's Avatar
 
Member Since: Aug 2015
Location: St. Charles MO
Posts: 1,877
Thanked 275 Times in 229 Posts
Default

Originally Posted by 81c3 View Post
This is what Im leaning towards. VB&P also shows a video on doing it this way and it said several times NOT to lube the outer part of the bushing where it fits into the bore. Only lube the "working" parts of the bushing.
I agree. I don't think lubing the outer diameter of the bushing or the shell it presses into is a good idea, because that only encourages movement that isn't supposed to happen. We don't want that! in fact, with offset bushings if that rotation happens you will lose your alignment immediately. That makes no sense to me. OTOH...

Originally Posted by adamsullivan44
they also recommender to lube the "face" of the bushings where it connects to the brackets or spindles, etc.
This is something I forgot to include, and I agree with this recommendation. This is an area where the urethane "faces" could make contact with the metal tabs or lugs into which the arms are bolted.
MatthewMiller is online now  


Thread Tools
Search this Thread
Quick Reply: Where to Apply Syn Grease to Poly Bushings


Sponsored Ads
Vendor Directory

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: