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Land Cruiser 2h engine,water pouring into sump.Have canged head gasket and oil cooler gasket,welsh plugs on cyl.head but water seepin into sump between no 5 and6 cylinder.

Can anyone point me in the right direction.

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Welsh plugs in behind plates behind exhaust,just done a set myself with same problem

Posted on Jan 06, 2013

  • beefa Jan 06, 2013

    welsh plugs in behind plates behind exhaust,just done a set myself with same problem

  • beefa Jan 06, 2013

    welsh plugs in behind plates behind exhaust,just done a set myself with same problem


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When you had the head off did you have it checked to see if it was warpedor notice a small crack?

Posted on Oct 30, 2012

  • customrebuil
    customrebuil Oct 30, 2012

    Hi Wayne,head was pressure tested and skimmed thats why i am a bit lost.



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SOURCE: car idling - carburetor

If you have oil in the water it smacks of a problems with the gasket or a crack in the head. Did you tension the head with a torque wrench? Did you retension after the first drive, with engine cool? What do the spark plugs look like?

Did you adjust the ignition timing after replacing the points?

Posted on Sep 13, 2008

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SOURCE: water running fast into engine oil

check the water pump gasket and timing chain gasket for leaks. You should take it and have a coolant pressure test done to quickly determine the source of your problem.

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SOURCE: 1991 Daihatsu charade, 3 cylinder, manual, engine

Hi ,engine oil in the coolant can only mean 1 of 2 things either head gasket or cracked block,It often takes experienced eye to see where the gasket problem is, it wont be :cracked:in that sense of the word,but I`m sure that will be the trouble... for oil to be in the water the leak will be between an oil gallery hol;e and a water jacket hole and the onlyevidence may be a darker colour between the 2 holes it wont be abig section ,or the oil pressure would have pushed alot of oil through into the water i think it is on an oil return gallery, unless there was a lot of oil.if you know an experienced older mechanic ask him to have a look at the gasket for you.I doubt it will be a cracked block ,unless you have had it realy hot and added cold water to the engine while it was hot. If not I sugest you clean every thing nicely and put anew head gasket on put it back together..If you need any help in that area, dont hesitate to get back to me and i`ll help where Ican, thanks

Posted on Aug 12, 2009

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2 Answers

What causes my truck to lose water, and what makes water get into my engine oil?

the water can get into the sump oil from pin holes in the timing case behind the water pump impeller
if you have water in the sump oil it will be a dirty grey color and the filler cap will have water droplets under it
If the oil is normal color then the loss could be from rusted welsh plugs
pressure test the cooling system to check for leaks

Jan 16, 2016 | 1998 Ford Expedition

1 Answer

Water detected in sump would it come from the oil cooler

Would need more information on the year, manufacturer, model and engine size. That said, most engine oil coolers do not use engine coolant as a cooling medium. They are mounted in front of the radiator and use air cooling. If that is the case, water in the sump would most likely be due to a blown head gasket, cracked head, or cracked engine block.
Oil coolers for automatic transmissions are often installed internal to the vehicle radiator, and if one of these breaks, then coolant will infiltrate the transmission sump and transmission oil will infiltrate the cooling system.

Oct 22, 2015 | Cars & Trucks

1 Answer

Engine diagram

Have a coolant pressure test done to see if the leak is external--radiator-- welsh plugs --hoses water pump--- heater . Have compression test done to determine if there is a head gasket or cracked head problem. Check the colour of the engine oil and if it is grey or milky there may be a leak behind the water pump impellor allowing water into the sump

Sep 28, 2013 | 2000 Chrysler Grand Voyager

1 Answer

My Toyota With 1HZ motor has engine oil in coolant what is the cause?

possiable intke manifold crack or head gasket if car has been ran hot or water pump failer has happend that could have caused it

Sep 27, 2012 | 1994 Toyota Land Cruiser

1 Answer

Water leak

Sounds of it, may be head gasket or welsh plug but the easiest way to find the problem would be to pressure test the cooling system. You could purchase a pressure tester or ask your local garage to pressure test it while you wait as the test only takes 2 to 5 minutes

Jun 13, 2012 | 2000 Toyota Land Cruiser

2 Answers

2004 vw touareg 2.5 tdi the oil sump was full of water and oil mix,also inlet manifold had oil and water mix.number 5 cylinder had locked up and engine would not turn,so i removed glow plugs and cranked...

Can not be water pump, because that has a vent hole to the outside, and does not at all allow access to crankcase or cylinders. Oil cooler is also unlikely because oil is under more pressure than the water, and it would not get into the cylinder.
Water in the cylinder means up high.
That means head gasket or cracked head.
You can tell with a leak down test.
You borrow the gauge from a place like Autozone, and replace the water reservoir cap with it. Over pump it, about 30 psi. And watch for leaks. If same cylinder keeps filling, then you know where the bad gasket or head crack is. Diesels often crack heads. Not hard to do, but new head is not cheap. Probably $500 for part, $400 labor.

Feb 22, 2011 | 2005 Volkswagen Touareg

1 Answer


is it coming from transfer case gasket?its mounted to gearbox or breather

Jan 01, 2010 | 1987 Toyota Land Cruiser

3 Answers

Oil in water resovour vw 2002 passat

This is probably a head gasket problem and not an oil cooler problem.

The oil cooler is fairly easy to test.

Remove the cooler from the engine but do not disconnect cooling lines and then pressurize the cooling system. You can use a radiator test tool to put pressure on the cooling system and look for leaks. If it leaks, replace it.

You may also be able to bypass the oil cooler altogether if it leaks.

The head gasket is another story.

Get a 1/4" pipe to spark plug fitting and put a male air coupling fitting in it.

Then you can charge the cylinders with air from your compressor.

Make sure each cylinder that you test is at top dead center so that the valves are closed.

If air bubbles into your coolant, you found your problem.

If air leaks out your intake you have a bad intake valve

If air leaks out your exhaust you have a bad exhaust valve etc.

If you find this useful, please take the time to rate it.


Apr 15, 2009 | Volkswagen Passat Cars & Trucks

3 Answers

Oil in radiator

Hey assuming that it is a 1hz diesel 99% of the time it is your oil cooler that has corroded through its quite a common problem toyota will charge about $1200 for the repairs and labour unless your game to give it a crack yourself its quite easy its just getting the injector pump off that sucks!!!

Nov 30, 2008 | 1994 Toyota Land Cruiser

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