This car is actually 1986 300 SDL on 1992 Mercedes-Benz 300SD

I have not done a compression test, but the head gasket is suppossed to be blown. Now my question is will this keep it from running?

by in Madisonville, KY on July 31, 2009
3 answers 1 comment
ANSWER by on July 31, 2009
A blown head gasket may allow coolant to leak into the cylinders and hydraulic lock the cylinder. If enough coolant enters the cylinder on the compression stroke the valves are closed and the piston travels upward trying to compress the coolant which is a solid, it becomes unable to compress a "solid" and prevents the engine from starting. A badly blown head gasket in which case the cylinder no longer contributes or makes power will make the engine difficult to start as a diesel engine needs good compression to build heat to produce combustion and run.
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ANSWER by on July 31, 2009
Common! it's clear someone told you you had a blown headgasket. NO YOU CANNOT DRIVE THE CAR!!!! Unless of course you are up to buying a new engine. That is more than the car is worth! If you are going to let it sit that long you'll have to put an additive in the tank. Diesel fuel goes bad alot quicker than gas.
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ANSWER by on July 31, 2009
I agree-Don't drive the car in this condition. It will only cause catastrophic engine failure!
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COMMENT by on July 31, 2009
No I do not want to drive the car but I just wanted to here it run, because it has sit for longer than a year...

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