I have just bought a W123 280E as a parts car. It has a little cosmetic rust, good A/C, paint, seats, sheepskins, rubber and all are fine.

Here is my problem:
The 280E engine starts easily, but will not run below around 1500 RPM (by ear) and it misses badly at that speed. I haven't tried it on the road yet (slip into D at 1500 rpm??)
I have searched on the Tech Forum and although I found it has the M110 engine, I haven't found a diagnosis of my problem.
I also read that they have valve guide and head issues and require regular valve adjustments.

If any of you have this engine fitted to any of your cars, or have experience with this model, and can assist me, I am open to suggestions.
I will be towing it home tomorrow night and will be able to test compression, vacuum etc then.
Thanks in Advance.
ps, Photos to come.
pps, also posted in Diesel forum, where I know many members.

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.