Vehicle & Technical > Discovery

Head Gasket

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Les Henson:
As the discussion about head gaskets crops up more and more (and I have one to do next week), I asked Turner engineering last night on their opinion. I got a reply pretty-much straight away from Frida, and she says that there is no need to use a thicker gasket - even after a head skim.  As Turner engineering is pretty-much the last word in Land Rover engines, I would folow their advice without question. Porny is entirely correct.


Les.

RichardM:

--- Quote from: "Les Henson" ---As the discussion about head gaskets crops up more and more (and I have one to do next week), I asked Turner engineering last night on their opinion. I got a reply pretty-much straight away from Frida, and she says that there is no need to use a thicker gasket - even after a head skim.  As Turner engineering is pretty-much the last word in Land Rover engines, I would folow their advice without question. Porny is entirely correct.


Les.
--- End quote ---

I read somewhere that you are supposed to measure the amount the piston is out of the top of the bore at tdc and use a thicker gasket the more the piston sticks out

Les Henson:
The amount the piston protrudes from the deck will remain the same if you have the head skimmed. The deck is almost never skimmed - it's cast iron and generally doesn't get damaged. If you have reason to suspect the gasket you just removed may not be the right one, then measuring piston protrusion is the way to determine the right gasket to use.


Les.

Range Rover Blues:
I was just about to chip in on that subject, piston projection it's called and shouold be checked whenever the bottom end is disturbed (it's also a good ised to get it balanced) and that's why therer are different gaskets available, on a diesel the piston all but touches the head, at which point the valves are closed.

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