From byers-at-research.att.com Thu Oct 28 13:29:39 1999
From: "S.D.Byers" <byers-at-research.att.com>


Stephen, 

A Summary:

300D pre 1975 has underengine oil filter mount (not at rear) and series
glow plugs. 

300D 1975 -1977 had no turbos.  300D after 1977 might have a turbo, and
will have "Turbo" or "Turbodiesel" if it does. The naturally aspirated
post 1977 300D has 8 more hp than the pre 1977.

300SD before 1981 is pretty much the same as the 300D Turbo and 300TD
Turbo from 1977-1985 enginewise. Details like cruise control may differ. 

The 300SD 1981-1985 is more powerful. (about 20 more horses).Anything
after 1985 is 6cyl. 300 or 350. The 350 is the infamous problem
car. The 6cyl has an ecu I think. I have never touched one. 

Note the 240D is way more common in Europe. The 123 wagon came in 240TD
form in Europe, but onlt 300TD form in US and only witha  silly auto
trans. 

Helpful or dead loss? I would definitely stick to the OM617 series of
engine, i.e. the 5cyl 3 litre lumps. All past 1977 are very similar.
Any 300 turbo will push a Scout along at 80+ quite happily. 

You can find good used 300D engines for 500 USD. I got one with 69k miles
for that. A friend got a 450k 300SD with 90k engine for 750USD, check the
rust belt areas for good engines in bad cars. Parts are easy to find on
all continents.

When buying there are some helpful hints that you might want to know, I am
sure people on this list can help out.

		SDB




On Thu, 28 Oct 1999, john wrote:

|On Thu, 28 Oct 1999, LYNN, STEPHEN J wrote:
|
|>-->John,
|>-->I saw your Mercedes Web Page, and it was a wealth of information.  I had a
|>-->couple of questions I hope you could answer.
|>-->1) If the engines are turbocharged will it necessarily be indicated on the
|>-->Model?
|
|no, the 300SD and SDL models were all turbo'd.
|
|>-->I ask this because the 300SDL generates more HP and torque than the 300TD
|>-->turbo.
|
|I believe the SDLs were a 6 cylinder, not sure on that, check Nitzke's books. :)
|
|>-->2)Are all the 300 and 350 models 5 cylinders? 
|
|no.  the 350's had 6.
|
|>-->
|>-->My project is a 1980 Diesel International Scout that has an anemic 101 HP 6
|>-->cylinder Nissan Turbocharged engine.  This was the stock diesel for this
|>-->model.  It's old, low compression, and smokes a lot.  It can't make it up
|>-->some of these Ozark mountains in Arkansas.  By the way, my brother lives in
|>-->Seattle.  I think I've been through your town. I'm planning on putting one
|>-->of these Mercedes engines in the Scout.  The availability is good for most
|>-->of these 300 models although I haven't checked on the 350. 
|
|sounds like a great plan.  The 300D's are pretty decent motors and should work
|ok in a Scout.  A friend in Sweden sent me pictures of a Full Size Cherokee
|with a 240D engine mated to a Volvo Turbo that is doing fine.
|
|I'd recommend an 85 or 86 300D with the Turbo for your swap...
|I've heard mixed reports on the 350's.  The engine from a 300SD would be good too,
|as far as I know.
|
|john
|
|>-->
|>-->Thanks for any help,
|>-->Stephen Lynn
|>-->
|
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