Hello, I have a 1973 (LHD) Mercedes W114 280C. I am 15 months into restoring.
engine number: M110 921 12011896.
I need a inlet camshaft to fit, part number: 1100519101
I have seen similar ones that state they fit with part number: 1100517401 so i am unsure and no one can give clear answer...
Seems a very rare engine as its the carb not injection version so only around 5000 made. I found that a 280CE exhaust cam and housing seemed to fit but can't solve the inlet cam issue... ah, help!
Any advice? Im in the UK.
Osh

Attached Thumbnails

 

I am a bit confused regarding exactly what it is you are looking for.

The picture you provide shows the intake cam. Is this just a picture you found on the web or your actual engine?

Okay, after having a second cuppa and re-reading your post I have a better understanding of what you are looking for.

The cam from the 280SE is not a good fit. It is made for a higher compression engine, and you will actually lose power on the carb'ed version. Overlap, valve timing, etc.

You need to find a matched set, or at least the same version of camshafts.

You could try these guys:

https://www.mercedespartz.com/store/1100517401/

Or failing that, buy a set from Ebay and maybe send them to Delta Camshaft in the U.S. or try:

https://dbilas-shop.com/en/engine-valve-train/performance-camshafts/mercedes/2-8-m110/regrind-standard-camshaft/2187/mercedes-2-8-m110/regrind-standard-camshafts

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

O:

That engine (and the whole car for that matter) are US spec. 1973 all USA, and 1974 all except California.
If you will disassemble the camshaft part # it reads thus: 110 051 91 01. The 91 is the cam profile code and is stamped into the rear face of the rear journal of the camshaft. A camshaft with a 33 code can also be used in the .921 engine.
All of the M110 camshafts will physically interchange, although the profiles differ.

Thanks Mike and Frank.
Yes that's the actual engine.
I bought a cam from Germany for the M110 engine but it didn't fit.
Now im trying to find a compatible one in the UK or Germany or USA but way slower and more expensive.

pic enclosed of one that didn't fit

Attached Files

xx.pdf (491.0 KB, 106 views)

Didn't fit? How didn't it fit? That's a new one on me. You do know the cam journals are sized and the M110 cam is installed from the rear, yes?

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

O:

The picture you posted shows an inlet camshaft in the cam box.
1) What is the code # of that camshaft (stamped into rear of shaft)?
2) Do you have an exhaust camshaft, and if so, what is the code #?

Well the mechanic showed me, he put the cam in and it didn't line up, so wasn't held in place.

I will upload the photo of the old housing and cam (inlet) we want to replace.

Then after will upload the new one with the 280CE exhaust cam fitted.

Hopefully that will explain it.

Attached Files

inlet.pdf (527.1 KB, 93 views)

and exhaust

Attached Files

exhaust.pdf (47.0 KB, 95 views)

The exhaust cam has this code on it: 110 051 1601
photo enclosed

Attached Files

IMG_6788.pdf (427.0 KB, 86 views)

Two peoples, separated by a common language.


The first of these two pictures is simply another view of the inlet cam, not an exhaust as claimed.
The second of these two pictures is of a casting number, not a code #.
For the third time: The code # is stamped into the rear face of the camshaft!!


These errors are likely attributable to the consumption of warm beer.

O:

Your words from your last post (#15):
"4th pic is an inlet cam i bought but doesn't fit?!?"

Please define the meaning, in this context, of the word "fit".

Well it fits but when the cam lies in its place the lobes dont line up so its loose. As is my understanding. Does that make sense?

No, it does not make sense. A picture of the cam "in its place", please.

Are you referring to the cam bearings not lining up or the journal/lobes?

I have two different M110 engines in my shop.

One is a 1978 W116 280SE and the other is from a 1973 280.

There is a difference in the cam boxes.

1978 W116 280SE:



1973 W114 280:



Note the difference of the cam bearings. The '78 fuelie has 5 bearings on the intake cam and 6 on the exhaust.

The '73 (carb'ed) has 7 bearings on the intake and 8 on the exhaust.

Don't know whether it is due to model year differences or injection vs. carburetion. I suspect it is due to injection but I've been wrong before.

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now