NastyZ28 Forum



Go Back   NastyZ28.com > Body & Chassis Restoration > Body Restoration
User Name
Password

Reply
 
Thread Tools Display Modes
Old 04-13-2012, 02:34:10 PM   #1
buildinmy73
Veteran Member
 
Join Date: Oct 2007
Location: Greenfield MA
Posts: 489
firewall/cowl holes?




can someone tell me what these holes are for there located left side firewall on the cowl
buildinmy73 is offline   Reply With Quote
Old 04-13-2012, 03:24:18 PM   #2
1971CamaroGuy
Veteran Member
 
Join Date: Oct 2004
Location: AR
Posts: 2,322
I had some weird box mounted there on my 71, I thought it was an aftermarket alarm or something, but it couldn't have been that???

It was busted and hard to tell what it was. But my holes are the same as yours once I removed it
__________________
Dennis
1971 Camaro - work in progress

My Build: http://www.nastyz28.com/forum/showthread.php?t=241037
1971CamaroGuy is online now   Reply With Quote
Old 04-13-2012, 04:04:49 PM   #3
earlysecond
Veteran Member
 
Join Date: Aug 2002
Location: Altoona, PA
Posts: 5,507
I could be wrong but I do not think that my '70 has any visible holes there.
__________________
Check the progress on the second re-incarnation of the same '70 sport coupe (in 6 years)at: Click Here
earlysecond is offline   Reply With Quote
Old 04-13-2012, 04:14:45 PM   #4
onelapduster
Veteran Member
 
Join Date: May 2010
Location: South Joursey
Posts: 701
No holes there on my 79. Plus that water channel runs behind that from the cowl vent area. No way to get to the back side of the holes really.
__________________
1979 Camaro Z28, 1980 Firebird.
onelapduster is online now   Reply With Quote
Old 04-13-2012, 04:51:36 PM   #5
73 Z
Gold Member
 
73 Z's Avatar
 
Join Date: Jun 2007
Location: Los Angeles, Ca
Posts: 456
[IMG][/IMG]
no holes, but definately has dimples in the same spot.
73 Z is offline   Reply With Quote
Old 04-13-2012, 06:38:06 PM   #6
ronzz572
Lifetime Gold Member
 
Join Date: Feb 2007
Location: imperial pa
Posts: 1,226
The holes or dimples are used to install the plastic vacume storage ball used on A/C cars. The dimples are only for location if needed to install it.
__________________
rgliebertjr@yahoo.com To sign up for the 2014 nasty z28 showcase at the chicago muscle car and corvette national show. Please PM me? Link to mcacn. www.mcacn.com
ronzz572 is online now   Reply With Quote
Old 04-13-2012, 07:36:51 PM   #7
twozs
Veteran Member
 
Join Date: Aug 1999
Location: hopewell jct ny
Posts: 6,582
Quote:
Originally Posted by ronzz572
The holes or dimples are used to install the plastic vacume storage ball used on A/C cars. The dimples are only for location if needed to install it.
i not sure that right , as my 73 is a working ac car and doesn't have a vacuum accumulator per say ( its not a ball , it more like a diaphragm ) and its not mounted there , its by the poa valve . i cant really see the OPs picture that well , but I'm assuming its by the stamped "X" on the filler panel . i have the dimps but nothing is there
__________________
PITA
twozs is online now   Reply With Quote
Old 04-13-2012, 08:28:15 PM   #8
ronzz572
Lifetime Gold Member
 
Join Date: Feb 2007
Location: imperial pa
Posts: 1,226
My van nuys built 1970 rally sport has the vacume storage tank mounted there. Now I can't answer for other years. Just a explanation for my comment.
__________________
rgliebertjr@yahoo.com To sign up for the 2014 nasty z28 showcase at the chicago muscle car and corvette national show. Please PM me? Link to mcacn. www.mcacn.com
ronzz572 is online now   Reply With Quote
Old 04-13-2012, 08:56:59 PM   #9
twozs
Veteran Member
 
Join Date: Aug 1999
Location: hopewell jct ny
Posts: 6,582
the 73 had a diffrent hvac control on the inside of the car . we din't have a MAX A/C setting on the controls ( we had the setting , just achived in a diffrent manner ). so what you say may be corect for the 70 -72 cars . im looking at some A/C cars from 70 - 72 and they seem to NOT have the diaphram vacuum accumulator . so i guess of instead of changing the tooling they just said eff it . this is what 73 had ( in yellow ) controls were diffrent for 73 also . so sorry . we just didnt get it in 73 . do you have a picture of it ?
__________________
PITA

Last edited by twozs : 04-13-2012 at 09:23:21 PM.
twozs is online now   Reply With Quote
Old 04-13-2012, 09:13:30 PM   #10
ronzz572
Lifetime Gold Member
 
Join Date: Feb 2007
Location: imperial pa
Posts: 1,226
My 74 has the vacume ball on the evaporator case above the passenger valve cover rear.
__________________
rgliebertjr@yahoo.com To sign up for the 2014 nasty z28 showcase at the chicago muscle car and corvette national show. Please PM me? Link to mcacn. www.mcacn.com
ronzz572 is online now   Reply With Quote
Messages from Our Sponsors !
Awesome NastyZ28.com Merchandise !!

T-shirts, wearing apparel

Drinkware, Mouse Pads, Decals

Old 04-13-2012, 09:22:09 PM   #11
twozs
Veteran Member
 
Join Date: Aug 1999
Location: hopewell jct ny
Posts: 6,582
well 74 had the same controls ( inside with no MAX A/C setting ) and a different system . the 74 has the VIR or valve in receiver system which eliminated the poa valve and replaced it with the vir, which may have relocated the vacuum accumulator again . if you notice in the 74 the poa valve is gone . 73 is weird as its A/C system has a lot of 1 year only parts . so anyway, back the OPs qustion, the dimples are for the vacuum accumulator for 70 - 72 ???
__________________
PITA

Last edited by twozs : 04-13-2012 at 09:31:44 PM.
twozs is online now   Reply With Quote
Old 04-13-2012, 09:41:31 PM   #12
twozs
Veteran Member
 
Join Date: Aug 1999
Location: hopewell jct ny
Posts: 6,582
does anybody have a picture of this thing mounted there ? ( by the "X" ) ...http://www.nastyz28.com/forum/showthread.php?t=206318
__________________
PITA
twozs is online now   Reply With Quote
Old 04-13-2012, 09:55:17 PM   #13
ronzz572
Lifetime Gold Member
 
Join Date: Feb 2007
Location: imperial pa
Posts: 1,226
twozs I have a couple i just took of my 1970. I cannot get them loaded to the sight to display here . pm me your email and i will send them to you.
__________________
rgliebertjr@yahoo.com To sign up for the 2014 nasty z28 showcase at the chicago muscle car and corvette national show. Please PM me? Link to mcacn. www.mcacn.com
ronzz572 is online now   Reply With Quote
Old 04-13-2012, 11:04:31 PM   #14
twozs
Veteran Member
 
Join Date: Aug 1999
Location: hopewell jct ny
Posts: 6,582
that would be fine
__________________
PITA
twozs is online now   Reply With Quote
Old 04-15-2012, 10:24:00 AM   #15
buildinmy73
Veteran Member
 
Join Date: Oct 2007
Location: Greenfield MA
Posts: 489
Thanks for the help everyone figured it had something to do with the ac
buildinmy73 is offline   Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



Copyright © 1997 - 2014 NastyZ28.com Inc.
Powered by vBulletin Version 3.5.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.