C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

'a' Arm Problems

Thread Tools
 
Search this Thread
 
Old Apr 22, 2006 | 01:22 AM
  #1  
Chris Farrer's Avatar
Chris Farrer
Thread Starter
Burning Brakes
 
Joined: Sep 2005
Posts: 755
Likes: 1
From: Hobart Tasmania
Default 'a' Arm Problems

Hey Guys,
Having a problem with the bolt, spring washer and washer on the 'A" Arm of my '72, they keep falling out. Looking for suggestions please. This is annoying when I only travel 50k and the darn thing is found sitting on the driveway. The bolt will tighten up well so the thread is not stripped. Not real keen on using loctite etc as someday I might want to replace the bushings. Any suggestions please.

Regards,
Chris
Reply
Old Apr 22, 2006 | 07:19 AM
  #2  
7t2vette's Avatar
7t2vette
The ORIGINAL and bestest
Supporting Lifetime
20 Year Member
 
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
Default

Use the blue Loctite, it is not permanent.
Reply
Old Apr 22, 2006 | 08:26 AM
  #3  
Jason Staley's Avatar
Jason Staley
Melting Slicks
25 Year Member
Photogenic
Liked
Loved
 
Joined: Dec 1999
Posts: 2,116
Likes: 156
From: Mid West
Cruise-In III Veteran
Default

Originally Posted by 7t2vette
Use the blue Loctite, it is not permanent.
Had to use blue Loctite on my VBP poly bushings to keep my bolts tight.
Reply
Old Apr 22, 2006 | 08:34 AM
  #4  
Chris Farrer's Avatar
Chris Farrer
Thread Starter
Burning Brakes
 
Joined: Sep 2005
Posts: 755
Likes: 1
From: Hobart Tasmania
Default

Thank you appreciate the advice
Reply
Old Apr 22, 2006 | 08:45 AM
  #5  
b71vette's Avatar
b71vette
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2004
Posts: 1,043
Likes: 4
From: Va
Default

Have you verified the torgue spec, I believe it is 50 lbs/ft.
Reply
Old Apr 22, 2006 | 09:15 AM
  #6  
77vetteuk's Avatar
77vetteuk
Instructor
 
Joined: Oct 2005
Posts: 143
Likes: 0
From: Lincolnshire,ENGLAND
Default

Its the large dished washer binding on the bushing when the a-arm pivots. When the bolt is tight up againts the large washer the bolt rotates with the washer if its binding againts the rubber bush which eventualy causes it to work loose.

Flip the dished washer round the other way for now,so it curves outwards away from the bush and only comes into contact with the shaft.should help.
I bought poly bushes for my a-arms and had to do this with all of them as my kit didnt come with flat washers.
Reply
Old Apr 22, 2006 | 10:20 AM
  #7  
Yellow73SB's Avatar
Yellow73SB
Le Mans Master
 
Joined: Nov 2004
Posts: 6,434
Likes: 0
St. Jude Donor '07
Default

Originally Posted by Chris Farrer
This is annoying when I only travel 50k and the darn thing is found sitting on the driveway.
50k miles?
Reply
Old Apr 22, 2006 | 07:31 PM
  #8  
MCMLXIX's Avatar
MCMLXIX
Racer
15 Year Member
 
Joined: Jan 2004
Posts: 303
Likes: 28
From: los angeles ca
Default

Had the same problem when I put in poly bushings. Keeping the bushings lubed helps but they still come loose. The solution was cam type lock washers. I still check them once in a while out of habit but have not had one come loose since. If you can't find them localy try McMaster-Carr they call them "permanently tight lock washers". I used the stainless ones with ARP bolts, problem solved. They are not cheap so order just what you need. Remember that the lowers are larger so you don't have to order twice.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old Apr 22, 2006 | 07:43 PM
  #9  
TonySinclair's Avatar
TonySinclair
Melting Slicks
 
Joined: Aug 2005
Posts: 2,606
Likes: 5
Default

Originally Posted by Yellow73SB
50k miles?
He's in Australia, so most likely = 50km.

Thank you, Jethro.

Reply

Get notified of new replies

To 'a' Arm Problems





All times are GMT -4. The time now is 10:57 PM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE