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willysmjeeps.com :: View topic - Stamped code 3w on cylinder block top surface
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Stamped code 3w on cylinder block top surface

 
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Harleygaz
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Joined: Jul 18, 2019
Posts: 17
Location: Mississippi, near Memphis TN

PostPosted: Tue Aug 20, 2019 3:48 pm    Post subject: Stamped code 3w on cylinder block top surface Reply with quote

What would a stamp of 3w with the w underlined on the block top surface under where the head gasket would go near the engine number mean? Iíd post a picture but I donít know how to meet the requirements in the faq.
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Gary
M38 - May 1952
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jam51m38cdn
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Joined: Feb 06, 2008
Posts: 59
Location: Findlay, Ohio

PostPosted: Wed Aug 21, 2019 8:36 am    Post subject: Reply with quote

Very good question, it always fun trying to figure out someones code. My machine shop told me years ago that sometimes they have to mill the top of the block to get it trued up flat. They said they always take a piece of paper and pencil and rub it over the serial number so they can restamp it exactly how it was. They have been doing Willys engines for 4 or 5 generations in their shop. If the top of the block was milled and i hate guessing anything. W = 6 on the numerical code. Was the machine shop trying to say they milled off .036. Just a SWAG. A pic would be nice, maybe someone else has a better idea. Jim
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mbullism
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PostPosted: Wed Aug 21, 2019 8:46 am    Post subject: Reply with quote

Gary... is that you? Wink

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wesk
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Joined: Apr 04, 2005
Posts: 14345
Location: Wisconsin

PostPosted: Wed Aug 21, 2019 9:03 am    Post subject: Reply with quote

Back up the camera a wee bit so we can get a better idea of exactly where it is located. Gary said it was under the head gasket near the serial number. I've reviewed dozens of block photos already and not found that type marking on any close to the serial ledge.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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Harleygaz
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Joined: Jul 18, 2019
Posts: 17
Location: Mississippi, near Memphis TN

PostPosted: Wed Aug 21, 2019 9:33 am    Post subject: Reply with quote

The picture posted is correct. Not mine but one Iím looking to buy for rebuild to get a period correct MC engine in my M38.
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Gary
M38 - May 1952
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wesk
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Posts: 14345
Location: Wisconsin

PostPosted: Wed Aug 21, 2019 9:38 am    Post subject: Reply with quote

The photo still does not show the overall location of the stamping. I still would like to see a photo that will at least depict the stamping using coverage of #1 cylinder bore to the water pump.

A photo more like this one:


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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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Harleygaz
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Joined: Jul 18, 2019
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Location: Mississippi, near Memphis TN

PostPosted: Wed Aug 21, 2019 9:51 am    Post subject: Reply with quote

I do have a better photo but no way of posting to this page. Wes if you PM me your email address Iíll send it to you and maybe you can post it?.


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Gary
M38 - May 1952
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