Donut gaskets? - Vintage Mustang Forums
Vintage Mustang Forum
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us
» Auto Insurance
» Featured Product
Go Back   Vintage Mustang Forums > General Discussion > Vintage Mustang Forum
Vintage-Mustang.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 10-31-2001, 02:55 PM   #1 (permalink)
Senior Member
 
RMoore's Avatar
 
Join Date: Nov 2000
Location: Huntsville, Alabama
Posts: 390
Default

When I got my vert, a couple of months ago, there was an exhaust leak at the donut gaskets. I had them replaced at a reputable muffler shop and the noise went away. Now in the last few days, the noise is returning. Assuming its the donuts again, what could be causing the problem to reappear? I'm a very conservative driver, if that matters, and I'm not aware of any other problems with the engine or exhaust system.
__________________
Happy Trails!!
Randy
65 Convert, 289, 4v, C4, PS, AC
Nothing shows poor workmanship like wrinkles in the duct tape!
RMoore is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-31-2001, 02:59 PM   #2 (permalink)
Senior Member
 
Join Date: Jun 2001
Location: North Carolina
Posts: 4,974
Default

It is possible that they have "seated themselves". Have you tried tightening them up?
__________________
http://i198.photobucket.com/albums/a...n/mistakes.jpg

"The danger of communication is the illusion that it has occured"
DaveSanborn is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:03 PM   #3 (permalink)
Senior Member
 
66emberglow's Avatar
 
Join Date: Jul 2000
Location: Huntsville, AL
Posts: 5,525
Default

I think a simple retightening will fix the problem. I believe it's a 5/8 nut. Find four of them on your V8.
66emberglow is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:04 PM   #4 (permalink)
Senior Member
 
autoxsteve's Avatar
 
Join Date: Mar 2001
Location: Southern California
Posts: 6,783
Default

Well, Mighty Mouse, the problem is you are a very conservative driver. These donuts were designed with Phil Hill in mind, so get out there and do some donuts![IMG]/forums/images/icons/wink.gif[/IMG]

I think Mr. Sanborn is on the right track....
__________________
Links-R-Us...
Steve Leslie, 65 cpe, 302, toploader, A/C, orig disc brakes, bench seat, tri-bars, tri-Ys, I need tri-power! 356,000 miles (4/12/2010)
http://forums.vintage-mustang.com/fi...05_09_2007.JPGhttp://i252.photobucket.com/albums/h...0_01_20003.jpg
1965 Ford Mustang - All Weather Fighter
autoxsteve is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:06 PM   #5 (permalink)
Banned
 
Join Date: Feb 2001
Location: California
Posts: 3,830
Default

Yeah, try tightening them up first. Sometimes those rings can change shape due to heat, etc. whether the vehicle is old or newer. Two additional options:
1. Apply a very light coat of high temp sealer (like for header gaskets, etc.) to the rings and reinstall.
2. Have a muffler shop build you a flat flange that attaches diretly to the manifold eliminating the "rings".
3. On one truck in our family, it about drove us all nuts after a year, my dad pulled the rings out, made a copper gasket- it lasted for about 8 years and 160,000 miles on a work truck!
beechkid is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:14 PM   #6 (permalink)
Guest
 
Posts: n/a
Default

n/m
  Reply With Quote Quick reply to this message
Old 10-31-2001, 03:19 PM   #7 (permalink)
Senior Member
 
Join Date: Jun 2001
Location: North Carolina
Posts: 4,974
Default

What the heck is this Mr. crap?
__________________
http://i198.photobucket.com/albums/a...n/mistakes.jpg

"The danger of communication is the illusion that it has occured"
DaveSanborn is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:23 PM   #8 (permalink)
Guest
 
Posts: n/a
Default

Isaw they have this limited edition Homer Simpson cereal at the supermarket. It's shaped like donuts and has that expression on the box.
  Reply With Quote Quick reply to this message
Old 10-31-2001, 03:36 PM   #9 (permalink)
Senior Member
 
autoxsteve's Avatar
 
Join Date: Mar 2001
Location: Southern California
Posts: 6,783
Default

Sorry, Dave, my fault. And you can call me Mr. Crap all you want[IMG]/forums/images/icons/wink.gif[/IMG], since I was the one who brought up the kitty litter cake and all......[IMG]/forums/images/icons/laugh.gif[/IMG]
__________________
Links-R-Us...
Steve Leslie, 65 cpe, 302, toploader, A/C, orig disc brakes, bench seat, tri-bars, tri-Ys, I need tri-power! 356,000 miles (4/12/2010)
http://forums.vintage-mustang.com/fi...05_09_2007.JPGhttp://i252.photobucket.com/albums/h...0_01_20003.jpg
1965 Ford Mustang - All Weather Fighter
autoxsteve is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:44 PM   #10 (permalink)
Senior Member
 
RMoore's Avatar
 
Join Date: Nov 2000
Location: Huntsville, Alabama
Posts: 390
Default

Thanks! I'll try tightening them.
__________________
Happy Trails!!
Randy
65 Convert, 289, 4v, C4, PS, AC
Nothing shows poor workmanship like wrinkles in the duct tape!
RMoore is offline   Reply With Quote Quick reply to this message
Old 10-31-2001, 03:58 PM   #11 (permalink)
Guest
 
Posts: n/a
Default

Ha! Had it for breakfast. SWMBO bought that and the Bart Simpson peanut butter chocolate crunch.

Steve
  Reply With Quote Quick reply to this message
Old 11-01-2001, 11:34 AM   #12 (permalink)
Senior Member
 
Join Date: Mar 2001
Location: B.C. Canada
Posts: 1,468
Default

Some of the replacement exhaust required a sleeve insert which the donut set onto. I had this problem with my 69 exhaust. New donuts and the leak was still there. Did not do any good to retighten as in a few days the leak was back. I took it to a muffler shop where the owner also restores cars and he knew what was wrong right away. He inserted the little sleeve, has a ring in the center and the donut sits on top of this, no more problems.
DGC
__________________
D .G.Cudmore


1955 Olds Rocket 88
1946 Ford flatdeck


1970 F 100 Ranger XLT
dcudmore is offline   Reply With Quote Quick reply to this message
Old 11-01-2001, 11:53 AM   #13 (permalink)
Senior Member
 
RMoore's Avatar
 
Join Date: Nov 2000
Location: Huntsville, Alabama
Posts: 390
Default

I tightened the exhaust bolts last night and the noise is gone for now. If it comes back, I'll take it back to the muffler shop with your note. Thanks!
__________________
Happy Trails!!
Randy
65 Convert, 289, 4v, C4, PS, AC
Nothing shows poor workmanship like wrinkles in the duct tape!
RMoore is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 02:09 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.