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1
220 / Re: 220 Engine Rebuild
« Last post by Scott Montoney on July 21, 2017, 09:43:07 PM »
I thought I might mention a little side note here.
I don't speak or read German very well, and my parts manual is printed in German.
Fortunately, there are pictures and diagrams to assist in identifying parts, but there are times I do need to read more of the description.
I was using a German-English translator and typing in the text.  Functional, but time consuming.
Then I came across the application for my smart phone called "Google Translate".
What I like is that it also has a photographic mode where all I have to do is hold the camera over the word(s) and as soon as it recognizes the word, it changes the picture display to the English translated word.  Very quick and easy!
Sometimes, with long, compounded words, it will not translate them.  If I just cover up the first word and then the second, it will understand each as individual words.
Just a little something I found that helps me translate German to English.
Scott
2
220 / Re: 220 Engine Rebuild
« Last post by Scott Montoney on July 21, 2017, 08:31:51 PM »
Here is an update.  I'm still taking things apart and cleaning them up enough to be able to evaluate the condition.
I discovered an issue that I created about 8-9 years ago when I had the head rebuilt.  I don't think that it was a serious problem, but this story may help someone else avoid my mistake.
I had ordered all the new parts for the head rebuild and gave them to the machine shop.
Valves, guides, springs, rocker arms, etc.
Now, this was when I was new to the world of classic MB.  The Workshop Manual I have was printed in '55.  The parts manual was printed in '52.
The Shop manual talks about the possibility of cast iron or aluminum heads and that the cam shaft is different.  I have the "newer aluminum head and the correct cam shaft.  What I didn't realize is that the valve springs are also different for the two heads.  The shop manual says the springs for the newer aluminum head can also be used for the older cast iron head, but not the other way around.  I ordered valve springs from my 220 parts manual and didn't realize I had ordered the old style springs and had them installed in the newer head.  That probably explains why I found some extra shims (not part of the normal configuration),under the springs to help compensate for the differences.  Anyway, I will make sure that is corrected this time round. 
3
Technical / Re: How to assemble the handbrake...?
« Last post by John Ellis on July 19, 2017, 04:08:49 PM »
First thought, have you attached the main brake cable to the rear three leg pivot arm correctly (see sketch)?  If mounted with the main cable pointed forward it will never pivot.  Second thought, there were two different cables in 1951. Mercedes Benz part number 183 420 00 85 for chassis number up to 09820 and 183 420 06 85 for chassis number 09821 and above.  Don't know what the differences are, but it could have been a different length?

All that said, there should be enough thread length to make the front short cable attachment.  Mine has about 10 cm of adjustment thread.
4
Technical / How to assemble the handbrake...?
« Last post by twigren on July 18, 2017, 11:50:00 AM »
Dear friends,

What is the best approach for assembling the handbrake (connecting the handle with the brakes).
No matter how I do, it's so hard (impossible!?) to put the adjustment screw to the cable top.
When mounted, of course the cable shouldnt be loose. But the force needed is more than I have...
I have the correct cable (new from niemöller), and all the things are in place.
What os tour approach, do you start from the handle, from brake side, or how is it intended to be done?

5
220 / Re: 220 Engine Rebuild
« Last post by twigren on July 14, 2017, 04:00:16 PM »
Scott,
Very interesting to follow your new challenges! Learning alot fromyou guys :)
Wish you all the best and good luck with the engine renovation!
6
220 / Re: 220 Engine Rebuild
« Last post by Scott Montoney on July 14, 2017, 08:34:19 AM »
The additional challenge for me is that I don't know exactly what other changes may have been made by previous mechanics the 55 years prior to my maintenance that started in 2007.
I have records that go back to '63, but even those just list the general work that was done.  They don't got into details that I would like to know.
Maybe I occasionally ask some questions that appear to be irrelevant or obvious, but my only Mercedes-Benz exposure is this specific car, and another '52 220 sedan.
So, all I can go by is to see what I have now, look up what was published in the early years from parts listings and shop manuals, and learn from those that have more experience. 
I greatly appreciate the insight this forum has offered!!
Thank you to all.
7
220 / Re: 220 Engine Rebuild
« Last post by Scott Montoney on July 13, 2017, 01:02:46 PM »
Several years ago, when I was addressing oil leaks and resealed the oil pan, I also replaced the front crank oil seal.
My crank does still have the oil slinger.  I also replaced the front spacer and ran into the same issue with the sprocket key.  I took it to a machine shop to have it modified to clear the key.  Always something to make the project "interesting".
8
220 / Re: 220 Engine Rebuild
« Last post by Henry Magno on July 13, 2017, 10:02:08 AM »
In practical terms, these engine designation numbers don't mean much as far as engine rebuilds are concerned, at least for the bottom end. What you need to know is when running changes were made during the production run, and these numbers won't tell you that. Since the M 180 was built for a long time right through the 220b, Sb, some of the parts you would be getting are applicable to those sixties models, the bearings, for instance and the pistons (with 24 mm wrist pins). Occasionally some of the later parts have been changed but are usable. For instance, originally, the crank sprocket had shim rings to align with the other sprockets, then they eliminated the shims. They used to use an oil thrower ring, and that was eliminated. Sometimes the oil thrower was incorporated into the "seal" spacer ring. I couldn't find this version part in the parts books, was it an aftermarket part. Who knows, but I have two in hand. The currently available spacer ring is used without oil thrower.  Yesterday I was fitting this ring when I realized that the sprocket key extended forward from the sprocket. The new ring had to be notched for the key. None of these things are a big problem. The biggest problem right now is that oil pumps aren't available as far as I know. I'm thinking of working up a complete solution using a 220 S pump, but new parts will have to be machined.
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220 / Re: 220 Engine Rebuild
« Last post by John Ellis on July 13, 2017, 12:31:57 AM »
Good to know.  Thanks for sharing your experience Henry!

I wonder if Mercedes Benz has a engine parts list manual for the 180.923 engine.  Might be a good idea to check with the MB German Classic Center for assistance.
10
220 / Re: 220 Engine Rebuild
« Last post by Scott Montoney on July 12, 2017, 09:42:54 AM »
Henry,
I'll contact you directly to further discuss some options.
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