Results 1 to 7 of 7

air filter oil cap?

This is a discussion on air filter oil cap? within the External Engine forums, part of the LSx Technical Help Section category; what is the purpose of replacing the oil cap with that filter out the top where the cap goes? i ...

  1. #1
    Junior Member Anti venom's Avatar
    Join Date
    Nov 2009
    Location
    Englewood OH
    Posts
    33

    Black
    2000 SS Camaro

    air filter oil cap?

    what is the purpose of replacing the oil cap with that filter out the top where the cap goes? i bout it but i forget and insted of lookin it up ill just ask ha. and is it neccesary?

  2. #2
    Junior Member Shakingchevy's Avatar
    Join Date
    Jun 2010
    Location
    North Carolina
    Posts
    11

    Blue
    1978 GMC Sierra

    if it is what i am thinking...it makes it breath better...but it isn't nessesary

  3. #3
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    There is always some amount of blowby within the engine and these combustion gases need to be drawn out or vented. In modern engines, the PCV (Positive Crankcase Ventilation) system draws the gases back into the combustion chamber via the intake vacuum. Old school systems simply had a downdraft tube that extended below the vehicle and the passing air helped draw the blowby out of the engine.

    In some cases, crankcase pressure becomes excessive and it is necessary to either modify the PCV system or add a breather. On our cars, a separator system or newer style PCV is sometimes warranted as oil can also be drawn into the system and cause issues.

  4. #4
    Junior Member Anti venom's Avatar
    Join Date
    Nov 2009
    Location
    Englewood OH
    Posts
    33

    Black
    2000 SS Camaro

    Quote Originally Posted by pajeff02 View Post
    There is always some amount of blowby within the engine and these combustion gases need to be drawn out or vented. In modern engines, the PCV (Positive Crankcase Ventilation) system draws the gases back into the combustion chamber via the intake vacuum. Old school systems simply had a downdraft tube that extended below the vehicle and the passing air helped draw the blowby out of the engine.

    In some cases, crankcase pressure becomes excessive and it is necessary to either modify the PCV system or add a breather. On our cars, a separator system or newer style PCV is sometimes warranted as oil can also be drawn into the system and cause issues.
    i put on the race style headers took out all the air systems. and will be
    instaling my ms3 cam soon. should i get the air breather oil cap? or get the catch can aswell?
    Last edited by Anti venom; 07-21-2010 at 09:14 AM.

  5. #5
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by Anti venom View Post
    i put on the race style headers took out all the air systems. and will be
    instaling my ms3 cam soon. should i get the air breather oil cap?

    Did you remove the PCV system? The AIR system is something entirely different and has no impact on blowby gases.

  6. #6
    Junior Member Anti venom's Avatar
    Join Date
    Nov 2009
    Location
    Englewood OH
    Posts
    33

    Black
    2000 SS Camaro

    no i did not remove the pcv that i know of just the air and egr. but should i get one anyway?

  7. #7
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Can't say... if you get oil in the intake or the dipstick lifts out of its tube then you have issues that need to be addressed. The addition of a catch can is not a bad idea no matter what as that separates the oil and prevents it from entering the intake.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. SLP lid or K&N Filter what is better
    By Durango in forum External Engine
    Replies: 24
    Last Post: 12-12-2008, 04:23 AM
  2. K n filter
    By pmolina0436 in forum GTO
    Replies: 1
    Last Post: 11-24-2008, 05:43 PM
  3. LT1 K&N filter
    By blackhawk01 in forum LT1
    Replies: 6
    Last Post: 04-15-2008, 12:28 PM
  4. k&n filter and slp maf fs
    By smax in forum Parts For Sale / Trade
    Replies: 2
    Last Post: 07-09-2006, 05:16 AM
  5. K&N Filter/Lid
    By 00\/\/S6 in forum General Help
    Replies: 4
    Last Post: 06-18-2006, 09:19 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
  •