Okay,

Do not buy the fuel return line, no biggy. Does the glow plug light flash after you try to start it?

If it does you have a glow plug out. Even if it does not you still may have a glow plug out.

Is the car a stick shift? If it is turn the key to glow the plugs and have some one give you a shove or pull and at about 20 mph gently let the clutch out in 2nd gear. If it starts, keep the idle steady but low and allow it to run for a minute. Check to see if the oil pressure comes up immediately. If it clanks, bangs and moans let it run for a few minutes and it might stop. Go ahead and shut it off if you think it will blow up.

By the way, if it won't shut off with the key, press the stop lever, part of the throttle linkage, on the valve cover gasket. If that does not work, because someone monkeyed with the linkage, dump the clutch or put your right had on the dip stick to hold it down and put your left thumb over the opening of the breather hose coming out the top of the valve cover and that will kill the engine. By the way when doing that, count and see how long it takes, thats a good indication on the non turbo engines on how good the compression and leak down are.

Good luck and happy towing!

Ryan

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Ryan
1985 300D Turbo Diesel
1984 200 Euro