 Anything to be aware of when connecting 75/76 exhaust manifolds to the engine? |
|
|
|
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. |
|
|
  |
| Tdskip |
 Jul 19 2020, 10:48 AM
Post
#1
|
|
Advanced Member  Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None 
 |
I checked and the studs are in place and they seem like they’re in decent shape, any tips or anything else to be aware of when putting everything in place to make sure it seals up properly?
It seems straightforward enough but I’ve learned to ask because there’s not a whole lot that you guys haven’t figured out to do better than the shop manuals. . Thanks and hope everybody has a good Sunday. |
   |
 
|
| barefoot |
Jul 19 2020, 02:53 PM
Post
#2
|
|
Senior Member Group: Members Posts: 1,276 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
|
Run a large file across the sealing faces to insure they're flat & square to each other. Then test fit to insure they slide evenly onto the studs, have been known to warp so won't fit. Much easier to install than the pre 75 versions as they're so short. I used a little copper paste on the seal surfaces and new copper coated nuts with SS washers so nuts don't gouge into holding surfaces. Torque in increasing values up to specified torque. If you're able, re-torque after having been up to operating temperature.
|
|
|
|
| IronHillRestorations |
Jul 19 2020, 02:56 PM
Post
#3
|
|
I. I. R. C. Group: Members Posts: 6,719 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
|
If you are using all stock parts, you shouldn't have problems. You might have the stub pipes magnafluxed to make sure you don't have any cracks. That said, those factory stub pipes have much better flanges than an aftermarket HE's
I think barefoot was making reference to the marginal fit that's found on some aftermarket heat exchangers. |
|
|
|
| Krieger |
Jul 19 2020, 04:08 PM
Post
#4
|
|
Advanced Member Group: Members Posts: 4,713 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None
|
Anneal the copper gaskets before installation. Antiseize on the studs. Copper coated nuts. Recheck torque on nuts after a few drives. Drop torque value to account for wet threads.
|
 |
|
| Tdskip |
Jul 19 2020, 04:34 PM
Post
#5
|
|
Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None
|
Thanks gentlemen, great info
|
|
|
|
| Bleyseng |
Jul 19 2020, 06:04 PM
Post
#6
|
|
Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Flat filing with the biggest flat file is the key so the J pipe sealing surfaces are parallel to each other.
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 20th May 2024 - 06:22 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.