Autocrossing & Roadracing Suspension Setup for Track Corvettes, Camber/Caster Adjustments, R-Compound Tires, Race Slicks, Tips on Driving Technique, Events, Results
Sponsored by:
Sponsored by:

Zerk fittings for VPB bushings...

Thread Tools
 
Search this Thread
 
Old 11-28-2006, 08:38 PM
  #1  
Payne
Racer
Thread Starter
 
Payne's Avatar
 
Member Since: Apr 2006
Location: Palo Alto CA
Posts: 332
Likes: 0
Received 0 Likes on 0 Posts
Default Zerk fittings for VPB bushings...

I hear a lot of people complaining about squeaking from the poly bushings and having to relube.

Anyone Zerk their VBP bushings for easy lube? How hard was it?

Any pics?

-Jason
Old 11-28-2006, 08:57 PM
  #2  
danswofford
Pro
 
danswofford's Avatar
 
Member Since: Oct 2005
Location: Durham California
Posts: 558
Likes: 0
Received 0 Likes on 0 Posts
Default

I didn't do it, but others have posted about it. Drill a hole in the metal bracket and tap in a Zerk fitting. Drill a hole through the bushing at the fitting. Not much to it.
Old 11-29-2006, 12:29 AM
  #3  
John Shiels
Team Owner
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,808
Received 8 Likes on 8 Posts

Default

except your bushings will turn so the hole won't line up soon no? Bushings usually have a grove in them all the way around.
Old 11-29-2006, 10:31 AM
  #4  
XPC5R
Drifting
 
XPC5R's Avatar
 
Member Since: Apr 2002
Location: DFW TX
Posts: 1,614
Likes: 0
Received 1 Like on 1 Post
Default

You can drill/tap towards the middle of the bushing pairs, and hit the space between the two bushing halves.
Old 11-29-2006, 11:14 AM
  #5  
95jersey
Le Mans Master
 
95jersey's Avatar
 
Member Since: Sep 1999
Location: Private
Posts: 5,464
Likes: 0
Received 2 Likes on 2 Posts

Default

I would love to hear of any way to lube these bushings without removing them...
Old 11-29-2006, 11:59 AM
  #6  
LTC Z06
Get Some!

Support Corvetteforum!
 
LTC Z06's Avatar
 
Member Since: Oct 2001
Location: North Louisiana
Posts: 56,083
Received 65 Likes on 45 Posts

Default

Drill and tap what? The eye of the A-arms?! Could that lead to a starting point for stress fractures?
Old 11-29-2006, 06:26 PM
  #7  
John Shiels
Team Owner
 
John Shiels's Avatar
 
Member Since: Jul 1999
Location: Buy USA products! Check the label! Employ Americans
Posts: 50,808
Received 8 Likes on 8 Posts

Default

Originally Posted by MAJ Z06
Drill and tap what? The eye of the A-arms?! Could that lead to a starting point for stress fractures?

You worry to much We will have Gary H analyze it but we will drill yours first
Old 11-29-2006, 06:35 PM
  #8  
Payne
Racer
Thread Starter
 
Payne's Avatar
 
Member Since: Apr 2006
Location: Palo Alto CA
Posts: 332
Likes: 0
Received 0 Likes on 0 Posts
Default

so most of the bushings are halved, correct? so for most of them I could just put the zerk inbetween the halves of the bushings?

I'm a computer scientists and not a mechE, but I dont think a small tap in the arm is going to drastically change the structural integrity.
Old 11-29-2006, 08:52 PM
  #9  
ghoffman
Le Mans Master
 
ghoffman's Avatar
 
Member Since: Feb 2000
Location: Bedford NH
Posts: 5,708
Likes: 0
Received 1 Like on 1 Post
Cruise-In II Veteran

Default

Originally Posted by John Shiels
You worry to much We will have Gary H analyze it but we will drill yours first
Originally Posted by Payne
so most of the bushings are halved, correct? so for most of them I could just put the zerk inbetween the halves of the bushings?

I'm a computer scientists and not a mechE, but I dont think a small tap in the arm is going to drastically change the structural integrity.
with:
A I don't think it would be an issue to drill and tap the a-arm with a small Zerk in the middle of the a-arm.
B You do it first

1) The bushings are halved so as long as there is a little gap in the center that would be the place to do it. If not, a belt sander would take care of it.
2) I use adhesive (RTV) to bond the urethane into the a-arm. This way the bushing doesn't rotate nor in this case would the injected grease get where you don't want such as the space between the bushing and the aluminum a-arm.
3) VBP makes the best bushing kit, and if you take your time and put in in with care, it works great.
Old 11-29-2006, 09:09 PM
  #10  
Payne
Racer
Thread Starter
 
Payne's Avatar
 
Member Since: Apr 2006
Location: Palo Alto CA
Posts: 332
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ghoffman
with:
A I don't think it would be an issue to drill and tap the a-arm with a small Zerk in the middle of the a-arm.
B You do it first

1) The bushings are halved so as long as there is a little gap in the center that would be the place to do it. If not, a belt sander would take care of it.
2) I use adhesive (RTV) to bond the urethane into the a-arm. This way the bushing doesn't rotate nor in this case would the injected grease get where you don't want such as the space between the bushing and the aluminum a-arm.
3) VBP makes the best bushing kit, and if you take your time and put in in with care, it works great.

Good idea...

This is going to be my winter project, along with coilovers, alignment camlocks, cornerweight/alignment...
Old 11-30-2006, 10:05 AM
  #11  
freefall
Burning Brakes
 
freefall's Avatar
 
Member Since: Aug 2003
Location: Los Gatos CA
Posts: 1,100
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ghoffman
3) VBP makes the best bushing kit, and if you take your time and put in in with care, it works great.
yep - just noisy, like all poly kits.
Old 11-30-2006, 11:06 AM
  #12  
XPC5R
Drifting
 
XPC5R's Avatar
 
Member Since: Apr 2002
Location: DFW TX
Posts: 1,614
Likes: 0
Received 1 Like on 1 Post
Default

For those planning the mod this winter, just a couple of things to watch out for:

1) Mark the desired position of the zerk with a sharpie while the suspension is still assembled. You don't want the fitting somewhere you can't reach because lines, driveshafts etc. are in the way.

2) Cut a couple of small slots in the poly bushing ID, and thrust faces, to let the old grease get forced out. The clearances are tight enough, that without those, too much pressure from the grease gun will start to push the bushings out from the arms - I found out the hard way!

3) It is still a bit messy, but it's nice to flush out most of the dirty grease without disassembly and losing your alignment.

Get notified of new replies

To Zerk fittings for VPB bushings...




Quick Reply: Zerk fittings for VPB bushings...



All times are GMT -4. The time now is 12:15 AM.