| Author |
Message |
    
Jim
| | Posted on Friday, January 24, 2003 - 05:52 pm: | 
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Hey all,
I'm seeing quite a few posts that causually mention leaking headgaskets as a nagging problem on the big "To Do" list.
I've replaced headgaskets on quite a few vehicles (not Land Rover . . . .yet) and I'm a little puzzled:
It's my opinion that if you're not losing compression than you don't have a leaking headgasket.Granted, if you're blowing (or sucking) water in the combustion chamber you've got a problem but, then again, if you're sucking water than you're also going to be losing compression so my original argument still holds.
Can someone explain "my headgaskets are leaking a little" to me?
I can understand a little weeping oil or seepage but I could never imagine that anyone would tear down the top of an engine over something so trivial.
Is there some LR design that I'm not aware of?
Thanks,
Jim |
Peter Matusov (Pmatusov)
| | Posted on Friday, January 24, 2003 - 06:08 pm: |
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Jim, on my '96 there's a very small leak of coolant from the back of the head.
peter |
Jay R.
| | Posted on Friday, January 24, 2003 - 10:27 pm: |
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I see a small gooey buildup from the back of the head. I bet it is a coolant leak.
Jay R. |
Steven Henry
| | Posted on Saturday, January 25, 2003 - 01:16 am: |
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I have the same problem. I decided it was time to fix it, since it progressed from being a small leak to a large one.
Steven |
Jim
| | Posted on Tuesday, January 28, 2003 - 04:37 pm: |
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Okay, but you're sure it's the headgasket? You're not losing any compression?
Doesn't coolant pass through the intake manifold as well? Have you tried retorquing the intake bolts to see if that controls the leak?
I'm confused about this because headgaskets seal the water jacket and, obviously, the combustion chambers. Less so any oil source other than the oil return galleys from the upper head (but there's no oil pressure, per se). They're torqued down by 10 (or 14) stretch bolts torqued to 68 ft/lbs plus 180 degrees and you're saying that coolant, under 14 lbs of pressure is escaping past that gasket but combustion gases, at roughly 150 psi aren't getting past that same gasket?
That just doesn't make sense, unless Land Rover has some serious design flaw.
How is this possible?
-Jim the curious. |
OLIVER CLOTHSOFF (Everythingleaks)
| | Posted on Tuesday, January 28, 2003 - 08:00 pm: |
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Some of the leaks are caused by the metal in the gasket rusting and letting coolant out. I think you nailed it with design flaw since every other gasket on the car leaks as well.
How many small block chevys leak out of every orfice they can find and it is deemed normal by the dealer. If you tried to replace every gasket in a SBC under warranty they would kick the claim for sure. Now try it in a rover and they pay it without flinching most of the time.
Speaking of shitty designs how about the valve stick problem. Been around for years without a fix. |
muskyman
| | Posted on Tuesday, January 28, 2003 - 08:14 pm: |
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not to nit pic but combustion pressure is way more then 150psi
preignition combustion pressure is what your talking about once ignited it goes way way higher
i dont believe that there is a design flaw I would guess it has more to do with the ale drinking brits that bolt them togather |
OLIVER CLOTHSOFF (Everythingleaks)
| | Posted on Tuesday, January 28, 2003 - 08:21 pm: |
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They are made of porous material, you know, the poorist material they could find.
Or it could be "poor ass" material depending on how you pronounce it |
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