67 GT 390 - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 11-11-2009, 06:51 AM   #1
Registered User
Newbie
 
Join Date: Nov 2009
Region: Europe
Posts: 10
67 GT 390

Hi All.
I have 2 mustangs and lots of questions,
five years ago i bought a 67 gt 390 it`s in perfect condition and the marti report said it`s the real deal, since i got the car i have a problem with exaust fumes when i open the windows, when there closed there is no problem,the exaust is perfect and i replaced all the seals gaskets etc but to no avail, what am i doing wrong??

Regards Joe.
joeysull is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-11-2009, 09:32 AM   #2
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: 67 GT 390

check again for exhaust leaks, does it exit under the car our out back? Is it running rich perhaps?
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 11-11-2009, 10:15 AM   #3
Registered User
Newbie
 
Join Date: Nov 2009
Region: Europe
Posts: 10
Re: 67 GT 390

Hi Again
It seems to coming from under the bonnet,car is running a dream,does not seem to be running rich, only thing i can think of is it coming from the manifold.
Thanks for your help
Joe
joeysull is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-11-2009, 04:13 PM   #4
Registered Member
Regular
 
67mustang97's Avatar
 
Join Date: Jul 2008
Region: Vermont
Posts: 645
Re: 67 GT 390

Does it have the original exhaust manifolds? You could check for pitting on the exhaust manifolds. I had to replace the manifold on my 67' due to pitting over the years. I also never had much luck with the donut gaskets that join the manifolds to the exhaust.
__________________


02 GT 5 spd. Best 1/4 12.28 @ 112mph
67mustang97 is offline   Reply With Quote
Old 11-11-2009, 09:30 PM   #5
Registered Member
Regular
 
OsirisGuy's Avatar
 
Join Date: Jun 2007
Location: New York
Region: New York
Posts: 1,262
Send a message via AIM to OsirisGuy
Re: 67 GT 390

Possibly the manifold? If the car is running well I guess the compression is good?
__________________
Quote:
Originally Posted by MetallicMist View Post
OsirisGuy is correct
Quote:
Originally Posted by stangaroo View Post
OsirisGuy is right
2002 Mustang GT

BBK CAI - Flowmaster Catbacks - Pro 5.0 Shifter
OsirisGuy is offline   Reply With Quote
Old 11-30-2009, 03:34 PM   #6
Registered Member
Regular
 
big man's Avatar
 
Join Date: Nov 2009
Posts: 23
Re: 67 GT 390

Mine is the same,as its not my daily driver i just put up with it,the petrol smell helps a bit...
big man is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
1968 mustang gt 390 value drewzx3 Classic Mustangs 6 03-09-2010 07:56 PM
Intake manifold for 390 engine maxxx Classic Mustangs 1 03-19-2009 02:05 PM
Change out 200 six for a 390 v8 maxxx Classic Mustangs 5 09-25-2008 03:32 PM

» Like Us On Facebook



07:34 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.