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 )

> Outer Firewall R&R, Best Practice?
amfab
post Aug 12 2017, 09:55 PM
Post #1


Member
**

Group: Members
Posts: 391
Joined: 17-May 16
From: Los Angeles
Member No.: 20,004
Region Association: None



Is the consensus that the best way to replace the outer firewall is to cut out old oneā€”cutting around tubes, then grind the remaining bits off the tubes until clean? Or is there some other way?

TIA

-Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies(1 - 4)
BeatNavy
post Aug 13 2017, 05:40 AM
Post #2


Certified Professional Scapegoat
****

Group: Members
Posts: 2,922
Joined: 26-February 14
From: Easton, MD
Member No.: 17,042
Region Association: MidAtlantic Region



That's the way I did it. If there is a better way, I'd like to know. It a fairly large PITA to get that piece off.

Here is a pic of mine with it almost all gone (except for where the tubes protrude). I saved the shift and speedometer outlets and braised those back into the new section. In my enthusiasm to cut I also severed one of the heater cable tubes and had to braise a repair to that.

Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
mb911
post Aug 13 2017, 06:25 AM
Post #3


914 Guru
*****

Group: Members
Posts: 6,750
Joined: 2-January 09
From: Burlington wi
Member No.: 9,892
Region Association: Upper MidWest



Thats what i did as well but I cut mine in half as i have a 6 mount going on mine any way. I also left the top part in tact and sistered it up to the new piece and plug welded for additional strength.. Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
amfab
post Aug 13 2017, 09:23 AM
Post #4


Member
**

Group: Members
Posts: 391
Joined: 17-May 16
From: Los Angeles
Member No.: 20,004
Region Association: None



QUOTE(BeatNavy @ Aug 13 2017, 04:40 AM) *


I saved the shift and speedometer outlets and braised those back into the new section.


Is brazing preferred to welding due to the thin tubing or can it be welded? Or are the tubes not steel?

Thanks for the responses

-Andrew
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mb911
post Aug 13 2017, 09:50 AM
Post #5


914 Guru
*****

Group: Members
Posts: 6,750
Joined: 2-January 09
From: Burlington wi
Member No.: 9,892
Region Association: Upper MidWest



QUOTE(amfab @ Aug 13 2017, 07:23 AM) *

QUOTE(BeatNavy @ Aug 13 2017, 04:40 AM) *


I saved the shift and speedometer outlets and braised those back into the new section.


Is brazing preferred to welding due to the thin tubing or can it be welded? Or are the tubes not steel?

Thanks for the responses

-Andrew



Welding would be just fine..brazing puts a broader heat into a larger heat affected zone.. But either works.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

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

 



- Lo-Fi Version Time is now: 29th March 2024 - 06:29 AM