1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Valve covers only hand tight?

Discussion in '1st Gen. Tacomas (1995-2004)' started by obxmac, Jan 28, 2016.

  1. Jan 28, 2016 at 6:43 PM
    #1
    obxmac

    obxmac [OP] New Member

    Joined:
    Jan 28, 2016
    Member:
    #176395
    Messages:
    2
    Gender:
    Male
    Vehicle:
    1999 Tacoma
    Am replacing head gasket on my '99 Tacoma. Was shocked to find them hand tight, can I use Locktite?
     
  2. Jan 28, 2016 at 6:46 PM
    #2
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    Are you referring to the valve cover gasket or head gasket?
     
  3. Jan 28, 2016 at 6:50 PM
    #3
    obxmac

    obxmac [OP] New Member

    Joined:
    Jan 28, 2016
    Member:
    #176395
    Messages:
    2
    Gender:
    Male
    Vehicle:
    1999 Tacoma
    Sorry, valve cover.
     
  4. Jan 28, 2016 at 6:56 PM
    #4
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    Oh ok sounds right then. Ya those are not torqued too tight the torque setting for those bolts is 53 INCH pounds that converts to about 5 FOOT pounds.
     
  5. Jan 28, 2016 at 6:56 PM
    #5
    Fenwick1993

    Fenwick1993 Hillbilly

    Joined:
    Sep 1, 2012
    Member:
    #85996
    Messages:
    10,091
    Gender:
    Male
    First Name:
    Not Fenwick
    Chesapeake, VA
    Vehicle:
    96 Tacoma 5Lug
    Stonewall is the fattest 5 lug slug ever
    I think the looseness is from seal compression, not the bolts backing off. I have used the blue Permatex sealant on valve cover bolts before.
     
    FirstGen Jer likes this.
  6. Jan 28, 2016 at 7:15 PM
    #6
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    :notsure:As far a the locktite I have heard mixed suggestions for that. Some say blue locktite is affected by heat so it's useless for this type of application. But then some say it has worked for them?
     
  7. Jan 28, 2016 at 7:44 PM
    #7
    MQQSE

    MQQSE Bannable

    Joined:
    May 6, 2010
    Member:
    #36646
    Messages:
    44,811
    Gender:
    Male
    First Name:
    Rob III
    Monkey Mountain
    Vehicle:
    "Stitch"
    DV8 bumper / SB winch / BD lightbar & ditchlights
    I believe he's talking about Permatex Rubber Sealant and Gasket Dressing, not Loctite. @Fenwick1993
     
    Fenwick1993 likes this.
  8. Jan 28, 2016 at 7:52 PM
    #8
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    Would that help putting that on the bolts to keep them tite?
     
  9. Jan 28, 2016 at 8:05 PM
    #9
    o0oSHADOWo0o

    o0oSHADOWo0o Just lurking in the darkness

    Joined:
    May 7, 2014
    Member:
    #129360
    Messages:
    8,856
    Gender:
    Male
    First Name:
    Shadow
    Va Beach
    Vehicle:
    2012 Double Cab Short Bed 4x4 TRD Sport
    Just a few LEDs...
    Fenwick1993 likes this.
  10. Jan 28, 2016 at 8:14 PM
    #10
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    thanks, that's what I was referring to as well in my second post. But I have heard/read that it is affected my heat so used in this type of application it does not perform well? Wonder how hot those bolts get really though? That locktite is a high temp up to around 450° I believe. I don't really think they would get that hot?
     
  11. Jan 28, 2016 at 8:26 PM
    #11
    o0oSHADOWo0o

    o0oSHADOWo0o Just lurking in the darkness

    Joined:
    May 7, 2014
    Member:
    #129360
    Messages:
    8,856
    Gender:
    Male
    First Name:
    Shadow
    Va Beach
    Vehicle:
    2012 Double Cab Short Bed 4x4 TRD Sport
    Just a few LEDs...
    To be sure I would have to look at the product spec sheet to see what the highest temperature this product could withstand before it degrades.

    Loctite makes thread locking compounds in various different strengths. To break the bond of the more permanent types, I have had to use a torch to get the parts loose.

    I'm almost sure they make something that will withstand the normal operating temperature of an engine.
     
    FirstGen Jer likes this.
  12. Jan 28, 2016 at 8:30 PM
    #12
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    http://www.amazon.com/Loctite-196508-Temperature-Strength-degrees/dp/B00B749NJC this is the blue strength and high temp loctite rated up to 450°.
     
    o0oSHADOWo0o likes this.
  13. Jan 28, 2016 at 8:43 PM
    #13
    o0oSHADOWo0o

    o0oSHADOWo0o Just lurking in the darkness

    Joined:
    May 7, 2014
    Member:
    #129360
    Messages:
    8,856
    Gender:
    Male
    First Name:
    Shadow
    Va Beach
    Vehicle:
    2012 Double Cab Short Bed 4x4 TRD Sport
    Just a few LEDs...
    well there's your answer. :thumbsup:

    If your engine ever got up to 450 degrees, I would think you might need to do some work to it anyway.
     
    Fenwick1993 likes this.
  14. Jan 28, 2016 at 8:45 PM
    #14
    FirstGen Jer

    FirstGen Jer Well-Known Member

    Joined:
    Oct 15, 2015
    Member:
    #166714
    Messages:
    3,692
    Gender:
    Male
    First Name:
    Jeromey
    big bear lake, CA / lake havasu, AZ
    Vehicle:
    1999 toyota tacoma 3.4l v6 sr5 4x4
    Thanks for the help @o0oSHADOWo0o :cheers:
     

Products Discussed in

To Top