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

wrong firewall grommet!

Thread Tools
 
Search this Thread
 
Old May 9, 2012 | 09:46 PM
  #1  
ltblue79's Avatar
ltblue79
Thread Starter
Instructor
 
Joined: May 2011
Posts: 135
Likes: 0
From: Horicon Wisconsin
Default wrong firewall grommet!

So I ordered a 3 hole firewall grommet to replace the grommet that the vacuum hoses pass through for the Hvac system and it turned out to be the one for the headlight's vacuum hoses. I didnt realize that they were different sizes. So my problem is I cant seem to find this grommet and it has to be replaced. The car is a 79. Any info would be great. Thanks!
Reply
Old May 9, 2012 | 11:02 PM
  #2  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

drill it out?
Reply
Old May 10, 2012 | 02:15 AM
  #3  
ltblue79's Avatar
ltblue79
Thread Starter
Instructor
 
Joined: May 2011
Posts: 135
Likes: 0
From: Horicon Wisconsin
Default

Originally Posted by oldalaskaman
drill it out?
I would if i could but its the other way around. the hole is too big. so big the grommet goes right through the hole.
Reply
Old May 10, 2012 | 08:09 AM
  #4  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

check with wilcox, he usually has a pretty good idea where to get things and he's on here all the time.
Reply
Old May 10, 2012 | 08:11 AM
  #5  
73Corvette's Avatar
73Corvette
Le Mans Master
 
Joined: Feb 2012
Posts: 6,644
Likes: 481
From: OK
Default

I hate when your grommet won't fit in the hole.......size does matter.
Reply
Old May 10, 2012 | 08:20 AM
  #6  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

Originally Posted by 73Corvette
I hate when your grommet won't fit in the hole.......size does matter.
ur sik
Reply
Old May 10, 2012 | 11:19 AM
  #7  
Easy Mike's Avatar
Easy Mike
Team Owner
Supporting Lifetime
20 Year Member
 
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Default

The assembly instruction manaul (AIM) shows the installation of the grommet and lists the GM part number.

Reply
Old May 10, 2012 | 09:23 PM
  #8  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

I assume the grommet you need is the one in the picture below with Green, Black and White hoses running through it. I hate to say it but it was actually made to the hoses before installation and it is not sold separately or available.

I may have a used one.. Actually I'm sure I have a good used one if this is indeed what you need. You'll have to give Norm or Tommy a call tomorrow.. 812-288-7103... and when I come in I'll double check and have one of them call you back. I will not be in until late noon.


Last edited by Willcox Corvette; May 10, 2012 at 09:27 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old May 10, 2012 | 10:04 PM
  #9  
ltblue79's Avatar
ltblue79
Thread Starter
Instructor
 
Joined: May 2011
Posts: 135
Likes: 0
From: Horicon Wisconsin
Default

Originally Posted by Willcox Corvette
I assume the grommet you need is the one in the picture below with Green, Black and White hoses running through it. I hate to say it but it was actually made to the hoses before installation and it is not sold separately or available.

I may have a used one.. Actually I'm sure I have a good used one if this is indeed what you need. You'll have to give Norm or Tommy a call tomorrow.. 812-288-7103... and when I come in I'll double check and have one of them call you back. I will not be in until late noon.

That is what I need!! I ordered the vacuum Hvac kit through you and 2 of the grommets that ended up being for the headlights. The only issue I see is that the new hoses are so much bigger around than what passes through one of those. So do you just slide the new hose over the old ones at the grommet?
Reply
Old May 13, 2012 | 04:39 PM
  #10  
Willcox Corvette's Avatar
0Willcox Corvette
Former Vendor
 
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Default

two ways.. You can cut the hose and attach it to a used grommet, or you can take a used grommet, remove the old hose sections, enlarge the holes and then feed the new one through.

I'm not sure if you called or not, I was detained Thursday and Friday but I do have a grommet. I did check that. I'll talk to Norm and Tommy on Monday when I arrive.

Willcox
Reply

Get notified of new replies

To wrong firewall grommet!





All times are GMT -4. The time now is 09:11 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE