Results 1 to 4 of 4

Leak Down Test, Faulty Header Gasket?

This is a discussion on Leak Down Test, Faulty Header Gasket? within the Internal Engine forums, part of the LSx Technical Help Section category; Some time ago I had a leak down test done on my car (currently 28,000 miles), and cylinders 1,3,5,7 were ...

  1. #1
    Member Jon7I2's Avatar
    Join Date
    May 2006
    Location
    Chicago
    Age
    31
    Posts
    307

    Navy Blue Metallic
    99 Formula M6

    Leak Down Test, Faulty Header Gasket?

    Some time ago I had a leak down test done on my car (currently 28,000 miles), and cylinders 1,3,5,7 were all right around 15% which is good. However, 2,4,6,8 were all 28% and above. Furthermore, the 2,4,6,8 were not all within 10% of each other. So my question, can a faulty header gasket cause this? When I did LT's last summer I installed the passenger side header gasket backwards, torque down the header bolts, let it sit overnight, realized it the next day and corrected the problem. Could this action have deformed the gasket to the point that it is causing significant compression leaks in the affected cylinders (2,4,6,8)? Or would this simply have no effect on the compression?

  2. #2
    Member
    Join Date
    Aug 2005
    Location
    maine
    Age
    42
    Posts
    168

    black
    2000 ws6

    a header gasket, not possible. It has nothing to do with compression. Its after the exhaust valve.

  3. #3
    Member Jon7I2's Avatar
    Join Date
    May 2006
    Location
    Chicago
    Age
    31
    Posts
    307

    Navy Blue Metallic
    99 Formula M6

    alright thanks

  4. #4
    Member
    Join Date
    Aug 2005
    Location
    maine
    Age
    42
    Posts
    168

    black
    2000 ws6

    np, good luck figuring i out

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Quick Test: Faulty Alternators
    By Ed Blown Vert in forum General Help
    Replies: 0
    Last Post: 01-14-2014, 09:30 AM
  2. waterpump gasket leak
    By JayTA98 in forum External Engine
    Replies: 3
    Last Post: 11-21-2012, 09:34 AM
  3. Oil cooler gasket leak
    By bobbyd in forum General Help
    Replies: 20
    Last Post: 12-25-2011, 09:33 PM
  4. Help: Pan Gasket oil leak!! help help!!!!!
    By denegrader in forum Internal Engine
    Replies: 15
    Last Post: 05-18-2011, 01:01 AM
  5. Oil pan gasket leak??
    By transamgirl89 in forum Internal Engine
    Replies: 6
    Last Post: 01-25-2011, 04:25 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •