Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Are Special Bolts Needed for Exhaust
7TPorsh
post Jun 24 2015, 12:22 PM
Post #1


7T Porsh
****

Group: Members
Posts: 2,691
Joined: 27-March 06
From: Glendale Ca
Member No.: 5,782
Region Association: Southern California
I removed my sebring exhaust to change out the muffler. i noticed the exchanger to sebring bolts and nuts are overly corroded.

These are the bolts that connect the exchangers to the exhaust....not the head bolts.

Do I need anything special for these bolts? special material? I have seen copper nuts and such for the header end; but nothing specified for the muffler end.

i have new gaskets. thx
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Stitch914
post Jun 24 2015, 12:42 PM
Post #2


Newbie
*

Group: Members
Posts: 2
Joined: 20-May 13
From: Modesto, California
Member No.: 15,895
Region Association: Northern California
QUOTE(7TPorsh @ Jun 24 2015, 11:22 AM) *

I removed my sebring exhaust to change out the muffler. i noticed the exchanger to sebring bolts and nuts are overly corroded.

These are the bolts that connect the exchangers to the exhaust....not the head bolts.

Do I need anything special for these bolts? special material? I have seen copper nuts and such for the header end; but nothing specified for the muffler end.

i have new gaskets. thx


I don't think "special" bolts are necessary for the exchanger-to-muffler interface, but if you want to avoid corroded (and unsightly) bolts in the future, you can do what I did and use stainless steel fasteners; some hardware stores actually carry a decent selection of metric SS fasteners, and I usually stock up on them whenever I need to buy some.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
relentless
post Jun 24 2015, 01:20 PM
Post #3


Member
**

Group: Members
Posts: 350
Joined: 1-April 07
From: Oregon
Member No.: 7,636
Another tip is to put anti-seize compound on the threads. I use a copper anti-seize and it makes taking the bolts off a lot easier.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Jun 24 2015, 01:51 PM
Post #4


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None
QUOTE(relentless @ Jun 24 2015, 12:20 PM) *

Another tip is to put anti-seize compound on the threads. I use a copper anti-seize and it makes taking the bolts off a lot easier.


(IMG:style_emoticons/default/agree.gif) Best idea
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
7TPorsh
post Jun 24 2015, 04:37 PM
Post #5


7T Porsh
****

Group: Members
Posts: 2,691
Joined: 27-March 06
From: Glendale Ca
Member No.: 5,782
Region Association: Southern California
Sounds good, thanks guys!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Maltese Falcon
post Jun 28 2015, 06:35 PM
Post #6


Advanced Member
****

Group: Members
Posts: 4,645
Joined: 14-September 04
From: Mulholland SoCal
Member No.: 2,755
Region Association: None
Gary
Try Allen Industrial Hardware on Burbank Bl., Burbank.
Henry is real good at sourcing the metric specialty studs.
Then check your PM !
(IMG:style_emoticons/default/welder.gif)
Marty
User is online!Profile CardPM
Go to the top of the page
+Quote Post
campbellcj
post Jun 28 2015, 06:42 PM
Post #7


I can't Re Member
****

Group: Members
Posts: 4,545
Joined: 26-December 02
From: Agoura, CA
Member No.: 21
Region Association: Southern California
There is a special type of nut with a captive metal washer. I forget what they're officially called but I just grabbed some out of my storage unit. I have the opposite issue on my race car i.e., regular nuts work themselves loose so I'm gonna try the "correct" ones now.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
7TPorsh
post Jun 29 2015, 09:54 AM
Post #8


7T Porsh
****

Group: Members
Posts: 2,691
Joined: 27-March 06
From: Glendale Ca
Member No.: 5,782
Region Association: Southern California
Well it looks like I fell victim to the "while I'm in there" syndrome.
Dropped these filthy things and now i don't think they will be going back on

yuck

Attached Image

few of the studs were loose . This one is in there pretty good. Looks like this one wasn't bolted down tight enough. Gotta get it out.

Attached Image

so new studs needed as well.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rjames
post Jun 29 2015, 10:01 AM
Post #9


I'm made of metal
****

Group: Members
Posts: 3,933
Joined: 24-July 05
From: Shoreline, WA
Member No.: 4,467
Region Association: Pacific Northwest
QUOTE(7TPorsh @ Jun 29 2015, 08:54 AM) *

Well it looks like I fell victim to the "while I'm in there" syndrome.
Dropped these filthy things and now i don't think they will be going back on

yuck

Attached Image

few of the studs were loose . This one is in there pretty good. Looks like this one wasn't bolted down tight enough. Gotta get it out.

Attached Image

so new studs needed as well.


Kind of looks like someone already did a helicoil or a timesert on the right side already.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
7TPorsh
post Jun 29 2015, 10:34 AM
Post #10


7T Porsh
****

Group: Members
Posts: 2,691
Joined: 27-March 06
From: Glendale Ca
Member No.: 5,782
Region Association: Southern California
should that stud stay in there?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Jun 29 2015, 10:39 AM
Post #11


I drive my car everyday
*****

Group: Members
Posts: 8,300
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666
The more you remove and reinstall the studs, the greater the chance of pulling the threads from the head.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rjames
post Jun 29 2015, 12:30 PM
Post #12


I'm made of metal
****

Group: Members
Posts: 3,933
Joined: 24-July 05
From: Shoreline, WA
Member No.: 4,467
Region Association: Pacific Northwest
QUOTE(The Cabinetmaker @ Jun 29 2015, 09:39 AM) *

The more you remove and reinstall the studs, the greater the chance of pulling the threads from the head.

(IMG:style_emoticons/default/agree.gif)

See if you can gently clean up the rusted threads on the stud that's still in there. Best not to remove it at all if it won't come out easily and if it still allows you to tighten the bolt to the right torque speck. Look up the torque speck and maybe tighten slightly below it to be on the safe side.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chris Pincetich
post Jun 29 2015, 12:48 PM
Post #13


B-)
****

Group: Members
Posts: 2,082
Joined: 3-October 05
From: Point Reyes Station, CA
Member No.: 4,907
Region Association: Northern California
If the exhaust stud stays put, that's good! (IMG:style_emoticons/default/beerchug.gif)
The ones that come out are trying to be "special bolts" (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 17th May 2024 - 06:33 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...