C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Lock Washers needed?

Thread Tools
 
Search this Thread
 
Old Jan 6, 2023 | 12:50 AM
  #1  
mbp's Avatar
mbp
Thread Starter
Racer
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: Sep 2017
Posts: 334
Likes: 56
Default Lock Washers needed?

Hello. As the title says are lock washers, external, split, or flat washers needed on the two bolts and two nuts that bolt the carburetor to the intake manifold. It's a stock iron manifold if that makes a difference. Trying to stop them from having to be retightened or end up over tightened. Thanks for your helpful advice.
Reply
Old Jan 6, 2023 | 05:43 AM
  #2  
doorgunner's Avatar
doorgunner
2026 Loser of the Year
Supporting Member
10 Year Member
Veteran: Army
Photogenic
Photoriffic
 
Joined: Sep 2013
Posts: 36,487
Likes: 6,967
From: New Or-leens Loo-z-anna
Default

Pleasse dont buy china-etc brands...they break in half afte heat cycling!
Reply
Old Jan 6, 2023 | 09:02 AM
  #3  
KS69Coupe's Avatar
KS69Coupe
Drifting
Active Streak: 30 Days
Photogenic
Liked
Community Favorite
 
Joined: Aug 2010
Posts: 1,767
Likes: 302
From: Charlotte Area North Carolina
Default

Try Richard Fortier at (810) 750-1472

He has faseners that are excellent quality. No China or repro junk.
Reply
Old Jan 6, 2023 | 09:35 AM
  #4  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

I use a stainless flat washers to clamp a Holley to aluminum Intake. The washer keeps the nut from gouging into soft materials such as the carb base.
And in a small way the washer distributes the torquing load evenly.
When torquing down any carb base, crisscross the tightening pattern in several steps.
Reply
Old Jan 6, 2023 | 11:27 AM
  #5  
MelWff's Avatar
MelWff
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,597
Likes: 2,540
Default

Originally Posted by mbp
Hello. As the title says are lock washers, external, split, or flat washers needed on the two bolts and two nuts that bolt the carburetor to the intake manifold. It's a stock iron manifold if that makes a difference. Trying to stop them from having to be retightened or end up over tightened. Thanks for your helpful advice.
Since you are referring to a Quadrajet they use flat washers only.
Reply
Old Jan 6, 2023 | 01:37 PM
  #6  
Sayfoo's Avatar
Sayfoo
Safety Car
Veteran: Army
20 Year Member
Liked
Community Favorite
 
Joined: Sep 2005
Posts: 4,203
Likes: 643
From: Orange County Ca
Default

"two bolts"????
If your bolts loosen up enough that the carb is loose (not just the gasket compressing) without lock washers, why not try lock washers??
Reply
Old Jan 6, 2023 | 04:08 PM
  #7  
OldCarBum's Avatar
OldCarBum
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2016
Posts: 14,154
Likes: 7,942
From: Napa Valley California
Default

If you feel you need a locking device on the carburetor stud nuts and don’t want to use lock washers, try using a good nylon lock nut with a flat washer underneath or use a little Locktite on the threads.
Reply
Old Jan 6, 2023 | 04:58 PM
  #8  
sunflower 1972's Avatar
sunflower 1972
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 2016
Posts: 2,162
Likes: 940
From: Wauconda IL
Default

Photo taken 6 months after I bought it in 2015. Carb mounting bolts with flat washers. At the time I took the photo, with the exception of the thermostat housing, everything is original.



Reply

Get notified of new replies

To Lock Washers needed?

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-1

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-2

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-3

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-4

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-5

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-6

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-7

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-8

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
story-9

7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette

 Pouria Savadkouei




All times are GMT -4. The time now is 09:56 AM.

story-0
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-1
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-2
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-3
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-4
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-5
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-6
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-7
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-8
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE
story-9
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette

Slideshow: Check out these easy-to-install upgrades from Extreme Online Store that reshape the look and feel of the C6 Corvette.

By Pouria Savadkouei | 2026-03-23 17:00:27


VIEW MORE