Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Always Be Fixing Cars
 
Join Date: Nov 2012
Location: SE CT
Posts: 1,629
Jetnuts on exhaust parts? What technology are the factory locknuts?

There are several threads on exhaust fasteners. I used extra fancy jetnuts from Coastfab on my alfa, and noticed that McMaster sells some but only in SAE sizes. See 98892A600 for instance for a 5/16" Silver-Plated A286 Super Alloy jetnut. This is a high temp locknut. These could be used with 4/15th studs on the X-over and similar exhaust parts where one side of the stud is not threaded into alum.

Does anyone know what type of locking action the factory M8 nuts have: Pelican Parts - Product Information: 900-910-097-02-OEM ? Are these deformed? There are no lock washers visible.

__________________
'91 964 C4 - New Daily
'73 Alfa GTV - 90% done 50% to go
'65 912 - Welding in process

Last edited by r-mm; 10-15-2013 at 06:56 AM..
Old 10-15-2013, 05:46 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
LJ851's Avatar
 
Join Date: May 2010
Location: atlanta
Posts: 1,979
Quote:
Originally Posted by r-mm View Post
Are these deformed?


Yes.
Old 10-15-2013, 06:53 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Always Be Fixing Cars
 
Join Date: Nov 2012
Location: SE CT
Posts: 1,629
Are the M8 hex nuts holding the heat exchangers (#4) to headers locknuts? The PET suggests that are plain nuts.

The M8 nuts on the x-over pipe (#8) are indicated as locknuts.

__________________
'91 964 C4 - New Daily
'73 Alfa GTV - 90% done 50% to go
'65 912 - Welding in process
Old 10-15-2013, 05:47 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Always Be Fixing Cars
 
Join Date: Nov 2012
Location: SE CT
Posts: 1,629
Sort of interesting discovery - the M8 nuts on the 930 (#7) are listed as locknuts whereas their counterparts on the NA car are not...

__________________
'91 964 C4 - New Daily
'73 Alfa GTV - 90% done 50% to go
'65 912 - Welding in process
Old 10-15-2013, 06:31 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Senior Advisor
 
James Brown's Avatar
 
Join Date: Apr 2007
Location: Bellingham, WA
Posts: 5,479
Garage
Send a message via Yahoo to James Brown
high temperature lock nuts are mostly interference fit (deformed) and may not be noted in the parts catalog. i have used plain nuts and have had no problems.

__________________
08 Cayenne Turbo
Old 10-16-2013, 12:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Reply


 


All times are GMT -8. The time now is 11:07 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.