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Need Help to IDENTIFY YEAR D2 Serial plate is off engine and trans Winch covers

Need Help to IDENTIFY YEAR D2 Serial plate is off engine and trans Winch covers

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G2D2
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Howdy from Oregon y'all!
I just bought a Caterpillar D2 and the engine tag is missing and the tag on the trans is hidden by the Winch.. I have seen similar ones that say they are 1951 or 1953?  But I would like to know for sure and I know for sure someone here can ID it 😊 [attachment=68429]IMG_2530.jpeg[/attachment][attachment=68430]IMG_2532.jpeg[/attachment][attachment=68431]IMG_2531.jpeg[/attachment][attachment=68432]IMG_2533.jpeg[/attachment][attachment=68433]IMG_2529.jpeg[/attachment][attachment=68434]IMG_2542.jpg[/attachment][attachment=68435]IMG_2536.jpeg[/attachment][attachment=68436]IMG_2537.jpeg[/attachment][attachment=68437]IMG_2538.jpeg[/attachment][attachment=68438]IMG_2539.jpeg[/attachment][attachment=68439]IMG_2534.jpeg[/attachment][attachment=68440]IMG_2535.jpeg[/attachment]
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Sun, Jul 24, 2022 7:52 AM
josh
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In the 4th picture, you can see where the serial number tag on the engine block was, there is one rivet left and a hole for the other rivet, if you scrape the paint off between the two rivets, you may be able to see the serial number stamped in the block.
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Sun, Jul 24, 2022 8:20 AM
Disqualified
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Reply to josh:
In the 4th picture, you can see where the serial number tag on the engine block was, there is one rivet left and a hole for the other rivet, if you scrape the paint off between the two rivets, you may be able to see the serial number stamped in the block.
When I was playing this game with my d4, old magnet said to check the engine oil pan flange. I found the serial number neatly stamped right there.

Hopefully that might help you too..
Thanks again old magnet

https://www.acmoc.org/bb/discussion-d72/28630-help-identify-my-d4
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Sun, Jul 24, 2022 2:28 PM
Rome K/G
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Reply to Disqualified:
When I was playing this game with my d4, old magnet said to check the engine oil pan flange. I found the serial number neatly stamped right there.

Hopefully that might help you too..
Thanks again old magnet

https://www.acmoc.org/bb/discussion-d72/28630-help-identify-my-d4
I would say more around 1947-1949
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Sun, Jul 24, 2022 5:59 PM
neil
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Reply to Rome K/G:
I would say more around 1947-1949
The transmission at least is post 5U13273 (or the 4U equivalent) because it has the two-piece clutch shaft which would make it in the early '50s I think. I'm wavering on the dash forward though without my parts catalog because the gauges are not mounted on the separate small dash unit - I don't know when that change was made, and the governor control does not have a remote handle mounted on the governor assembly itself. The fenders are also pressed steel. I suspect the transmission and engine serial numbers might not match but only one way to find out for sure
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Sun, Jul 24, 2022 10:19 PM
Old Magnet
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Reply to neil:
The transmission at least is post 5U13273 (or the 4U equivalent) because it has the two-piece clutch shaft which would make it in the early '50s I think. I'm wavering on the dash forward though without my parts catalog because the gauges are not mounted on the separate small dash unit - I don't know when that change was made, and the governor control does not have a remote handle mounted on the governor assembly itself. The fenders are also pressed steel. I suspect the transmission and engine serial numbers might not match but only one way to find out for sure
The fill plug vs two bolt cover on the pony clutch housing puts it in the 47-48 era. Course it could have been changed.
The transmission shift lever puts in the late class. Looks like a hybrid mix. Can't quite see the compression release mechanism.
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Sun, Jul 24, 2022 11:27 PM
G2D2
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Reply to josh:
In the 4th picture, you can see where the serial number tag on the engine block was, there is one rivet left and a hole for the other rivet, if you scrape the paint off between the two rivets, you may be able to see the serial number stamped in the block.
Thank you! I will try and strip the paint
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Mon, Jul 25, 2022 11:13 AM
G2D2
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Reply to Disqualified:
When I was playing this game with my d4, old magnet said to check the engine oil pan flange. I found the serial number neatly stamped right there.

Hopefully that might help you too..
Thanks again old magnet

https://www.acmoc.org/bb/discussion-d72/28630-help-identify-my-d4
Thank you!  I will Check the flange, going to change the oil tomorrow.
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Mon, Jul 25, 2022 11:15 AM
G2D2
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Reply to neil:
The transmission at least is post 5U13273 (or the 4U equivalent) because it has the two-piece clutch shaft which would make it in the early '50s I think. I'm wavering on the dash forward though without my parts catalog because the gauges are not mounted on the separate small dash unit - I don't know when that change was made, and the governor control does not have a remote handle mounted on the governor assembly itself. The fenders are also pressed steel. I suspect the transmission and engine serial numbers might not match but only one way to find out for sure
Neil, Great stuff Thank you!!   At 5U16128, an oil clutch became standard where would I look for an indication of that? 

I will have to become a Member of ACMOC if they have all the parts books in .PDF?  looks like they have a good bit of literature anyway.

 
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Mon, Jul 25, 2022 11:28 AM
G2D2
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Reply to Old Magnet:
The fill plug vs two bolt cover on the pony clutch housing puts it in the 47-48 era. Course it could have been changed.
The transmission shift lever puts in the late class. Looks like a hybrid mix. Can't quite see the compression release mechanism.
Old Magnet, I appreciate the info!  I will try and take a better photo of the compression release I know it's brass.. From what you and Neil have said I'm thinking at some point it was updated to a new tranny and some parts were swapped here and there.
Thank you!
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Mon, Jul 25, 2022 11:34 AM
trainzkid88
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Reply to G2D2:
Old Magnet, I appreciate the info!  I will try and take a better photo of the compression release I know it's brass.. From what you and Neil have said I'm thinking at some point it was updated to a new tranny and some parts were swapped here and there.
Thank you!
that was one thing about cat a lot of later model parts would fit earlier machines. and yes re-powers were common particularly for company and local authority machines they didnt have time for it to sit to be repaired so often a exchange would be done. and its still that way today cheaper and quicker to do an exchange or have a spare to put in now and rebuild the broken unit as time permits.

"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"

instead of perfection some times we just have to accept practicality

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Thu, Jul 28, 2022 9:28 AM
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