To get a rough idea of how bad the compression might be, try to start the engine without allowing any time for the glow plugs to heat up -- just turn the key and let the engine crank. In 60F weather, my 603 will start after 5 seconds of cranking without pre-glow. If you are in a cold climate, that may not work. I think the 603 came with a block heater installed from the factory; you could use that in a cold climate to warm the engine and then try to start it without pre-glow.


They did come with the block heater from the factory, but the cord was attached by the dealer after delivery. Some have cords attached some do not.

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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


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