buying decision - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 06-27-2016, 10:21 AM Thread Starter
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buying decision

HI all, am looking for a w114/115, found two of them near one a 1970 220 manual, the body is in nice condition but the engine have not run for years the one is a 1975 240D automatic, in running order but with rocker and interior needs. not sure which one to get, ant particular problem with either the M115 engine or the automatic transmission??

regards
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post #2 of 7 (permalink) Old 06-27-2016, 03:31 PM
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It sounds like maybe you can make one good car from the two... Maybe. I recommend continuing your search. Always buy the best example you can afford because it will save you time and money. "There's nothing more expensive than a cheap Mercedes."

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post #3 of 7 (permalink) Old 06-27-2016, 06:24 PM
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Rust is the killer of the stroke eights. Just like an iceberg, 80% or better is hidden.

The 240D has the "better" engine, especially since it is running.

The M115 4 cylinder, coupled with a manual transmission, can be surprisingly "perky".

Unless you are looking for a project car, I'd take Fonzie's advice and pass on these two.
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post #4 of 7 (permalink) Old 06-27-2016, 06:41 PM Thread Starter
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Am indeed looking at a project, am a mechanic and my thought was to get the best body I can get.

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post #5 of 7 (permalink) Old 06-27-2016, 07:04 PM
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I never owned (a running version of) either of those engines, but got sick of trying to tune dual zeniths in a worn out m130. It was my only experience with MB carbs and I left w114/115 behind and haven't looked back (much). There was a short period where I had a good injected m110 and a manual trans Kit for a w114/115 and thought again about how I would have put those in that w114 coupe if I'd had all three at the same time. Otherwise, I really haven't looked back, but do still keep my eyes peeled for good 1973 cars that don't have the diagonal braces in the engine compartment yet are still the earlier style that I think is cooler.

I think I'd have to either have a stick of hot rod a w114/115 if I owned another.

So if you get the stick shift, the one cool thing you get is the majority of the stuff you'd need if you want a stick.

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post #6 of 7 (permalink) Old 06-28-2016, 12:27 AM
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If you want a good mechanic project then avoid anything with rust. Also decide whether or not you are going to tolerate the slowness of the 4 cylinder diesel. Having said that, the 6 cylinder gas cars are kind of a pig at the pump. For "coolness" factor I would go with a W114 coupe. I think they are tremendously undervalued.

I'm sure if you take some time you can find a car with a good body and a dead engine. That's much better for someone who is a mechanic. It is not a good idea to buy the first car you see. Look at a lot of them (if there is inventory) before you decide. You are going to be stuck with it for a while...

cheers.

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
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post #7 of 7 (permalink) Old 06-28-2016, 05:52 AM
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The M115 is a good solid engine. Mated to the 4 speed manual transmission they'll zip right along.

Been running a M115 in my wife's '71 250C (originally equipped with the M130 automatic) for over 6 years now and it is a hoot to drive.

Peaks out at about 85 MPH but will run at 75-80 MPH all day long. One of these days I'll get around to swapping out the 3.69 differential it has to a lower one. 1st gear in it is pretty useless unless you're looking to climb trees.

The only problem I've had with the M115 was the valve guides. When I got the engine a couple of them had become loose and wallowed out the head. Got a replacement head and it's been running ever since.

Avoid the M115's with either Solex's or Zenith carb. The simple old Stromberg side draft carb is the way to go.
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