Diesel Engine Specific Aid

76 240D biodiesel poor acceleration

I've been running 100 percent bio in a 76 MB 240D, just fine for a couple months now, but it's starting to get cold in Oklahoma. Recently I've noticed significant hesitation when trying to accelerate in 3rd and 4th and sometimes at the top end of 2nd. But it doesn't do it on all trips -- just off and on. Is this likely from clogged filters or could it be the injectors? I installed the Monark fine-mist injectors several months ago, and it's been running fine until recently.

Jason, Tulsa OK

Chassis Model Number

W115

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Diesel Engine Specific Aid

Cold starting experiences/early 300D/240D - info

I'm not asking for help...just making an observation...have a '77 240D and a '79 300D acquired this summer here in 40 below possible Montana (where even treated dirtydiesel won't fly)...The 240D worked great until the cold morning start was sub 14 degrees F! 300D worked fine...Diagnosed issue and couldn't believe the 240s glow plugs were shot (all 4)! I thought they couldn't start at all w/o glow plugs??? On the 240, we thought it was our biodiesel...but it must have been the glow plugs as the 300 had the same fuel and started right up. These cars are amazing!

Chassis Model Number

W123

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Diesel Engine Specific Aid

oil out the dipstick 1982 300 D

I just purchased an 82 300d turbo. I changed the oil and drove it 60 miles. Checked the level at my destination topped it up (less than 1/2 a quart) drove home. 3 miles from home the oil pressure plummeted STOP! Oil all over. dipstick not entirely seated in its tube. Added four quarts to get level back on the dipstick. What the bleep! Today I hooked a hose up to the dipstick tube and put the other end in a plastic container. Sure enough filled up half a quart of oil in about 20 minutes.

Chassis Model Number

W123

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Diesel Engine Specific Aid

transmission differences, 300Dt / TD / CD / SD (W123, W126)

I'm looking at cobbling together an engine and tranny, a car with a blown engine, and a car with a wasted tranny..

The problem is.. The car with the wasted tranny (300SD) is in Arizona.. The car with the wasted engine (300Dt) is in Missouri, and the available donor engine transmission is in Michigan..

..Oh, and I'm in Ohio, closest to the engine/tranny, but even that's 70 miles from me.

Chassis Model Number

W126
W123

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Diesel Engine Specific Aid

Engine size for 300SD

Me again. I asked a question about my 1978 300SD with a bad engine. I can get a really great deal on a low mileage 300TD engine and would love the increased power. My dad thinks we can just swap them out as long as they are the same size. Is there a size difference? It is hard to tell by looking and is really hard to measure.
Or should I just keep looking for a nonturbo engine?
(Don"t know how long the turbo engine will be available so please tell me something)

Chassis Model Number

Classic Sedans

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Diesel Engine Specific Aid

Squeek, Squeek, What does a worn water pump sound like?

I have a wonderful Anthracite Grey 1984 300TD - with 290,000 miles on it. Lately, at idle, it has begun to make a little squeek, squeek noise, kinda like a bird chirping from somewhere around the belts. It is slowly growing louder, and sounds to me like a bearing is going out. Is this what a worn out water pump sounds like? It seems to me that is what it is. I suppose it could be a worn out alternator. What are the typical symptoms of a worn water pump?
-Levon-

Chassis Model Number

W123

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Diesel Engine Specific Aid

Bosch Duratherm for a 1980 240D

I bought a Bosch Duratherm glowplug upgrade kit off of Fleabay since Kent was out(same as this one : https://mercedessource.com/node/691)

At any rate, I get the box and on the side it says W123D 08.80- which
to me means from August 1980 on. Well my 240D was born in March
1980. I do have my 1982 parts car in the garage and it does have a
different glow-plug set-up than my 1980.

I could cannibalize the parts car glow-plug setup and transfer it
over to the 1980 recipient car as it will eventually get the 1982 motor
as well.

Chassis Model Number

W123

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Diesel Engine Specific Aid

my 83 turbo diesel stalls after about 25 miles l

I have an 85 300 CD with an 83 engine, my problem is that after about 25 miles the engine starts slowing down and then stalls like it runs out of fuel. let it sit 10 minutes or so and it will start again and run fine for another 25 miles and do the same thing again. will run all day at an idle it only does it at highway speeds. Anyone know what is causing this?

thanks for the help

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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