In reply to Chadeux:
I think the majority of US market 300TDs actually did have a turbo, like the NA model was only sold for a year or two early on.
In reply to Chadeux:
I think the majority of US market 300TDs actually did have a turbo, like the NA model was only sold for a year or two early on.
The ones without a turbo are pretty slow. I used to have a 300SD with the om617 turbo and it was mostly fine for normal driving other than being pretty slow going up hills. Since I sold it they have installed metering lights on the freeway on ramps in my area, and traffic has gotten a lot heavier and more aggressive so I probably wouldn't try to daily drive a car that slow again. I have a w210 diesel now and that's just barely powerful enough to safely drive to work.
Chadeux wrote: I can't believe I forgot that t stands for wagon in German and assumed a TD had a turbo.
Very common mistake. I used to make it myself.
I still see lots of non-turbo 300Ds around here. Don't be afraid to rev the little diesel, it likes it. :-) You know the little dots on the speedometer are the redlines in each gear, right?
Man, I let off and let the trans shift so far before those I thought they were just common speed limit marks 
Another tip- remove the mechanical cooling fan. On the 240D, there's an electric fan in front of the A/C condensor and radiator, and the mechanical fan behind it without a clutch. Unless you're idling in traffic a lot, the engine doesn't need the mechanical fan. My electric one doesn't even work, and the engine only runs a little hot in traffic.
Eventually I plan to remove the pusher electric fan and install a puller fan between the engine and radiator. There's plenty of room there without the mechanical fan.
I'm a little afraid of doing that last one. I'm in Kuwait and it's about 118f pretty regularly these days 
Unless you think it would work 
Hungary Bill wrote: I'm a little afraid of doing that last one. I'm in Kuwait and it's about 118f pretty regularly these days
I've been lurking on your Mercedes thread, and noticed your car sees some pretty extreme temperatures.
Above 30 mph or so, the mechanical fan is irrelevant.
Below 30 mph, an electric puller fan (mounted between the engine and radiator) would work better than the old mechanical fan.
Pusher fans, mounted in front of the radiator/ AC condenser, are notorious for actually impeding air flow.
If I were you, I'd find a newer electric fan that looks like it'll cover most of the radiator, make sure it's a puller-type, and ditch the mechanical fan. I noticed a definite seat-of-the-pants improvement from losing the mechanical fan.
Also- I'm able to run 50 cetane diesel here- worth a little extra pep. Can you source that were you are? Diesel Kleen is a good thing, too.
Mine's gas, but I think I can run a few tests with the mechanical fan disconnected in my driveway and go from there.
Any thoughts on reversing the polarity of my AC's pusher fan and mounting it on the inside of the radiator (between engine and rad)?
Any extra oomph out here is a major bonus. Traffic is hectic and anything to get a bit more out of the skinny pedal is worth its weight in gold.
Hungary Bill wrote: Mine's gas, but I think I can run a few tests with the mechanical fan disconnected in my driveway and go from there. Any thoughts on reversing the polarity of my AC's pusher fan and mounting it on the inside of the radiator (between engine and rad)? Any extra oomph out here is a major bonus. Traffic is hectic and anything to get a bit more out of the skinny pedal is worth its weight in gold.
I would go find a modern puller fan. Fans are generally designed to optimize operation in the intended direction. Running it backwards might simply swirl a bunch of air around. You might see if you could flip the fan blade on the motor, so that spinning the motor in the intended orientation effectively pulls the air through the radiator. But modern fans are more efficient, and move air better. A late -90's Ford Taurus fan is the choice of many current hot rodders.
I've been lurking on your Mercedes thread, and noticed your car sees some pretty extreme temperatures
And you're not even talking about the one that lives in Texas!
i had to make an account to this site because i have owned 6 om617 and 3 om616. everyone of the 617 i have owned, even the ones whos odometers stopped at 450k miles years before i ever owned, all went over 100mph . All the 240s i have owned have all been able to hit 85mph. 90 is doable but it sound like you mught blow the top end off your engine hahaha. I just recently drove my 82 240d from sonoma county all the way to sandiego, and back in a 48 hr window. my average speed was 80mph. the old girl even made it up the grapevine[ the most brutal stretch of constant uphill before you hit la], granted we did use the bug rig lanes and had to chill between 2nd and 3rd gear the whole time. hahahaha.
a turbo kit would be amazing addition to the welded diff i have now. . somehow, some way this old 4cyl diesel will drift. .
If you have a w123 and would like a power upgrade check out my Instagram @happy_time_auto. we are putting a 2jz from a lexus sc300 in another w123 of mine. fits like a glove. will have swap kits available in the near future.
sorry for using this thread to talk about 2jz :) please forgive
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