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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by yan2947 on February 18, 2019, 05:20:24 PM »
I am sure henry is right also.  I wonder if my head is newer with the old cam and old head gasket.  I have no stamp on the right side like you and how the manual describes.  Even the Ponton's had the stamping so until the Classic Center opens tomorrow I will be a little lost...
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by Scott Montoney on February 18, 2019, 05:17:47 PM »
Here is another factor that messed me up for a while.  I found out that my engine was replaced in 1963, by the factory in Stuttgart. Although the serial number on the block and the metal tag show the original serial numbers, there is a second tag that I'm told indicates it is a "swapped out, replacement". I think that is when some of my "upgrades" happened.  I understand that "unit replacement" was the preferred procedure, instead of rebuilding the existing one. 
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by Scott Montoney on February 18, 2019, 05:07:34 PM »
First of all I miss typed.  I should have typed 8.7 (not 8.6, there was no 8.6).
Second, I trust Henry's experience .
Third, It seems a logical assumption since your photo showed 8.7 just above the part number cast into the head.
Fourth, The photo of the bottom of the head shows a combustion chamber that is "newer" than the older, almost square, shape.

So, it is definately not an old head.  It is also not like my 7.6 head.  I have to assume it is probably the 8.7 as Henry suggested.

I don't know enough about the cams.  All I know is that with mine, the cam is a newer build to go along with the head, to improve performance, and the service manual lists both as a possible combination, at the time the book was printed.  I also think the carb jets are a bit different as well, with the different cam.
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by yan2947 on February 18, 2019, 05:06:49 PM »
Scott, On the right side of my head I have 2 cut out areas where you have one with your compression stamped below the one.  For some reason I have 2 cutouts - not sure what they are for.
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by yan2947 on February 18, 2019, 03:58:17 PM »
How do we know my head is 8.6:1?  I know Henry stated that but the cam is stamped from '52 which is before the 220s.  This is where I get lost.
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by Scott Montoney on February 18, 2019, 03:55:38 PM »
I checked with Niemouller.  Knowing that the head is 8.6:1, found on the 220S, I looked in that section. 
They list the gasket for the 8.6 head as 180 016 18 20


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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by Scott Montoney on February 18, 2019, 03:38:45 PM »
In my opinion, you should get the gasket that is for the 8.6 head.  Not the current one shown.
I'd like to think the Classic Center could find the correct part number?

As for the cam, I have no idea. 
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by yan2947 on February 18, 2019, 03:24:08 PM »
I meant cam above - not crank...  So I am still a little confused with what henry said regarding my cam and the 220s.  Is my cam correct for the 220 w187?  Does it matter?  Should I get the same gasket I have?
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by Scott Montoney on February 18, 2019, 03:12:05 PM »
In my photos, the used gasket is the low compression gasket.  The new, wrapped gasket, is for the higher (7.6:1) head. 
Back in 2009, I did some work on my head.  That is when I found out that the wrong gasket had been used.
That is when I first became aware of the differences that may be encountered and that it is quite possible that some of the "original" parts may have been "upgraded" as part of a service/repair.

A similar issue may be found with the water pump and it's housing.  I ordered a water pump from the book.  It didn't fit.  Found out that the pump, and it's matching housing, was from a 220S.  It has a larger impeller and moves more water.  Not original to my year car, but a welcome improvement.
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220 / Re: 1952 220 Sedan W187 build restoration
« Last post by yan2947 on February 18, 2019, 02:02:21 PM »
Scott,

my gasket and the one on the link I put up look identical.  Here are some photos of the one side of the crank.  The other side was still covered.  Scott, it is identical to your gasket on the bottom of the top photo or the one
not in the packaging.  (or the headgasket-3 photo of yours - the top gasket is mine.)

And here is a guy selling a cam from a 53 Mercedes with a June of 52 stamping. 
https://www.ebay.com/itm/1953-Mercedes-Benz-W187-Camshaft-Cam-Shaft-6-cylinder-six/223299491967?epid=1834169563&hash=item33fdafd87f:g:UtkAAOSw4otcI97O:sc:USPSPriority!12486!US!-1:rk:1:pf:0
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