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  #1  
Old 07-15-2008, 09:23 PM
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Blown head gasket

I found out why the engine in my 220d will not start. I pulled all the injectors from the engine, and then connected a compression tester. When I engaged the starter and to my horror antifreeze shot out of cylinders 2 and 3. I think the head gasket is blown (I hope.) I was suspicious before I found this out, because the cooling system was being pressurized and would leak out of the heater valve. I drained the oil. About quart was antifreeze was at the bottom of the oil. I am going to have to pull the head to see it in-fact the head gasket is blown, and see if there is not more damage. My question is can I do this without removing the engine from the car and reset the timing chain? I know water in a diesel is very bad. Is there any chance this engine might not be ruined because of this? What do I need to do with the timing chain before I can pull the head?
Thank you for any help.


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Old 07-15-2008, 09:26 PM
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... water squirted out of the injector holes??? ouch. that's not good.
not good at all... odds are very good that a head gasket is not going to fix your engine. an appreciable volume of liquid INSIDE the combustion chamber will positively destroy pistons, rods, just about anything with enough compression... bad bad bad.

ok, get the valve cover off, and line up the cam timing marks with the tower mark. get it really really close.
then just take everything apart. as long as you don't turn the crank once the timing gear is off, there is no worries!
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Old 07-15-2008, 09:27 PM
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Did you run the engine at all with coolant in the sump?
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Old 07-15-2008, 09:37 PM
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No, the engine has not run since I bought the car. I did try to pull start the car for a short distance. The main thing I am worries about is the engine block.
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Old 07-15-2008, 09:50 PM
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AHHH! ok, this is much better. you have tried to crank it, so that alone could have damaged things, but coolant will find a level if there is a leak somewhere.
a head gasket is much more likely now.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #6  
Old 07-15-2008, 10:09 PM
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I am hoping the cooling system took the punishment insted of the engine. I want to buy a good shop manual. Has anyone bought one from Mercedesmanuals.com? Is this a good one to buy? http://www.mercedesmanuals.com/Mercedes_Benz_Manuals_Pre_1970_s/1.htm

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