out the tail pipe,a steady amount not a wall of blue smoke but so so, should I worry or could their be a problem of to much fuel ? the crank case tube that returns to the air intake port had a steady flow of blue smoke as it was unhooked for a moment,over all the motor sounded some what like a very old tractor that needed ajustments made to the valve train,had to prime the injector pump by removing a top red top cap to start the fuel delivery, oil pressure gauge is above 50 psi fast .67000 miles but not clear if it is correct,this car only cost $500 and is auto trans that works very well, if this was a gas powerd car i would have run away but i really don't know the facts about old mercedes,I only wanted diesel power for my 98 isuzu rodeo 2wd, could some one help me to realize if this sounds like a normal 240D or could i soon have another junk pile on my hands, give me the facts on old mercedes please, MPG info on a 240D would be good too'.' thank you all so much.
2006-08-19 15:51:53 · 7 answers · asked by JALISCO 2 in Cars & Transportation ➔ Maintenance & Repairs
Diesels are very high compression engines and no doubt this old beater has worn rings. Take a look in your air filter...if it's got oil inside of it, then you have blow-by, meaning worn piston rings.
This isn't necessarily the end of the car---you just have to add oil to it periodically.
MPG on a 240D will be, depending how you drive, anywhere from 20 to 26 mpg...maybe on a windless day at 60 mph all day long you could hit 30 mpg.
But usually, this is such a slow underpowered car that you have to mash the gas pedal all day long to keep from being run over from behind.
If you like Mercedes diesels, ditch that one before it sucks your wallet dry and get yourself a 1980s era 300 turbo diesel. They are much better in every way.
2006-08-19 16:23:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Sounds to me like you got a real deal.
Diesel fuel becomes more viscous the longer it sits. If this car has been sitting for a while, the rings may be temporarily compressed and/or the fuel in the tank has become thicker and more like oil than fuel.
I recommend you run it for a couple of weeks and see if the smoke goes away. My guess is that it probably will when you put fresh fuel in the tank.
You can buy a quart of marvel oil and put it into the crankcase oil It's a great top cylinder lubricant and may loosen up those rings.
I still think you got a great deal, but I wouldn't keep the car, parts are way too expensive. Unless you like flushing money down the toilet, best you sell it for more than you got it for and walk away.
2006-08-19 23:03:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Rings. You have bad rings. You can actually purchase an additive at the auto parts store that will help for a while. There are a couple different ones, ask for their advice.
Eventially, you will of course need to change the rings. But for the price you paid, you got a good deal.
2006-08-19 22:58:12 · answer #3 · answered by jmiller 5 · 0⤊ 0⤋
deisels are smoky and noisy any way, let her run for a while and some of the smoke should clear, if it seems to have enough power, it should be o.k. Take it to a german motors specialist if you are concerned and see what they say
2006-08-19 23:00:27 · answer #4 · answered by Big hands Big feet 7 · 0⤊ 0⤋
Never mind. Diesels blow blue smoke all the time.
2006-08-19 22:55:50 · answer #5 · answered by Pancakes 7 · 0⤊ 0⤋
check for leaking past your valve stems.
2006-08-19 22:58:40 · answer #6 · answered by oklatom 7 · 0⤊ 0⤋
1st thing, check and/or replace the air filter.
2006-08-19 22:57:06 · answer #7 · answered by Anonymous · 0⤊ 0⤋