1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

Head Gasket size

Discussion in '300 TDi' started by Rorie, Mar 13, 2019.

< Previous Thread | Next Thread >
  1. Rorie

    Rorie Active Member

    Joined:
    Dec 21, 2011
    Posts:
    500
    Likes Received:
    24
    I am replacing the head gasket. The one that came out was a composite, but had no markings. Do I now need to measur the piston rise to work out what gasket I need, or is there a 'standard' one?
     
  2. resto_d1

    resto_d1 Well-Known Member

    Joined:
    Apr 30, 2018
    Posts:
    1,420
    Likes Received:
    751
    Location:
    Wiltshire
    You don't know whether the previous mech guessed. Measure it with dial then rave tells you thickness dependant upon protrusion
     
  3. jamesmartin

    jamesmartin Well-Known Member

    Joined:
    Dec 8, 2010
    Posts:
    78,488
    Likes Received:
    10,051
    Location:
    louth lincs
    are you sure there were no hole in the tab on the gasket as in grey part in pic below
    upload_2019-3-13_21-47-21.jpeg
     
  4. Rorie

    Rorie Active Member

    Joined:
    Dec 21, 2011
    Posts:
    500
    Likes Received:
    24
    No tab at all! And i did have a good look before touching the engine. It is one of the composite gaskets.
    Looking at paddocks, i can see they have a 1, 2, 3 and 'no dot' gasket.

    I've checked my cylinder head last night for warping, all is really good and level, no warping, except right between the middle two cylinders. Not got my feeler gauges onto it yet, but it looks poor in a very local area.

    I know the textbook says the cylinder head is a write off if more than 0.08mm warping, but i'm wondering if there is an acceptable bodge that will give me a good X miles more out of the cylinder head prior to replacement? I.e. high temp gasket sealer below the composite gasket in this one area?
     
  5. Al2O3

    Al2O3 Well-Known Member

    Joined:
    Apr 21, 2014
    Posts:
    7,375
    Likes Received:
    2,006
    Location:
    North of the Wall
    Did your previous gasket fail?
    If you did not see any ID holes on previous gasket you will need to do what resto said and accurately measure the piston upstand.with a dial.
    Or, you could use a no hole, which is the thickest you can get.
    Trying a bodge is a gamble because you risk carping the whole engine :rolleyes:
     
< Previous Thread | Next Thread >