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1979 240d mechanic says the engine is no good, no compression
Hi
I was reading the 240D posts today. I own one. the mechanic says the engine is no good, no compression. I really love the car. It ran well, then one day it just turns over and over, but doesn't fire. Any recommendations for a second opinion, or, are there tests I can try. It's manual, and I can get it to move in spurts. Thanks Janet |
#2
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Ok,, does this mechanic have experience with OLD MB's ?
Do you trust him ? Did he not give you the actual compression figures ? He should give you compression figures for Each cylinder. If it was lower on one than the others he should have suggested a leak down test to determine whether the problem was rings or a hole in the piston... or the valves... When were valves set last ? Was it this mechanic who set them ? Did your engine experience a gradual ' lessening of power' ? Like over months or years ? Has he offered to buy it ? |
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Quote:
New first opinion required. |
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240 D
I bought the 240 D in August. It had a bad battery and I have two other vehicles. I rented to a German friend and his friend who was visiting from Germany. They bought a new mega battery, replaced all the filters and did a lot of simple maintenance on it. It ran great!! I noticed that the glowplug light took a long time to go off. One day, I left it in the position and waited for a couple of minutes. From that day forward, it never started.
The mechanic is another German Mercedes owner's mechanic. He did not give me compression numbers. I have no idea when the valves were set. He has done nothing to the car. I had it towed back here today. I have a gut feeling that it's not about spending 2000 on an engine. It ran really well and was a joy to drive. I would futz with it, but it's my first Mercedes and my first diesel, so I'm leaving it alone. I really don't want to get rid of it. thanks for your reply. It gives me hope. and, no, he didn't offer to buy it. That's always a giveaway. thanks jc |
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Brian oil pressure
The oil was low. I bought a 5 quart synthetic oil and put it in while my friend changed the glow plugs.
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Quote:
If this is the situation, your mechanic just might be correct. |
#7
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Ouch
I'm going to contact my friend who changed the plugs. He didn't seem to think the oil level was a problem. He's very experienced with the car, as you can see. He's driven his all around the world. http://www.mercedes124.de/besold/
thanks I'll get back to you. |
#8
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You burned out something in the glow plug circuit...
check that first.. since it quit immediatly after you let them run a little longer than usual... When you are starting in cold weather the manual says the glow plugs continue to heat for about 45 seconds after the light usually goes off.... so your extra glowing should not have done anything really bad... but on an old car it might have... |
#9
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glow plugs
After the new glow plugs were installed, I could see smoke coming from the second one from the front. Could that be a clue?
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#10
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Yep. On that model, those are probably series glowplugs. One goes out, they all go out.
No startee right after that.
__________________
Never a dull moment at Berry Hill Farm. |
#11
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Quote:
- Patrick
__________________
1982 240D. 198k, Marine Blue/Blue, 4 Speed, Crank Windows, No Sunroof, No Rust, No Oil Leaks 2001 TDI. 197k, Lagoon Blue/Black, 5 speed, Chip, G60/VR6 |
#12
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relay
I replaced the glow plug relay. Nothing changed.
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#13
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Very nice digital volt/ohm meters can be had from normal auto parts stores now for $15 or less...
Why don't you get one and disconnect the plugs on each end....and see if you have continuity from one end to the other.... if not then one is burned or shorted to the head... |
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If its a stick shift I'll give you $100 for it if its not rusted............
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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What part of the country are you located in? Maybe someone in your area could either give you help, or recommend where you could take it. More likely, being a 4 sp, someone will try and buy it!
That's another reason why it's nice when people put there general or specific location in the sig or other info locations...
__________________
Jimmy L. '05 Acura TL 6MT 2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China" Scar engine installed '81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John |
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