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Minneapolis Moline Tractors Discussion Forum
:

RTN model and serial number question

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QTR34

09-18-2020 19:29:42




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Hello. I have a Moline that I just accidently bought on an online auction. The plate on the transmission case lists the model as an RTN and the serial number is 418464N. The model number and serial number don't make sense when compared to the serial numbers I've found online. The tractor also has an adjustable front axle. Anyone have any ideas?

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c.amick

09-21-2020 19:11:54




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
Did they come with smaller diameter rims and wide tires like this one? The RTU of my neighbor's had 38 inch rims and narrow tires.



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JK2

09-21-2020 20:45:50




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 Re: RTN model and serial number question in reply to c.amick, 09-21-2020 19:11:54  
Early R's had 36 or 38 in rears. Later ones had mostly 34's. None of them were very wide. The exception was the RTI's. They had 24's or 28's but they weren't very wide either. The very early 36 and 38 rims had a full circle rim. Those and later 36 and 38 rims have a different (smaller & not rolled over) center hole than most other rear wheels. As far as I know, all the 34 inch rims have a standard center hole. Standard rims will fit on an R, but Early R rims won't fit on a regular hub.

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QTR34

09-22-2020 09:11:32




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 Re: RTN model and serial number question in reply to JK2, 09-21-2020 20:45:50  
I'm not sure what the wheels and hubs came from. The rim are 9 bolt which I've only seen on John Deere's. I was wondering if the could be from a moline uni-tractor. I think the ran 28" rims.



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molinegb

09-23-2020 06:03:24




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 Re: RTN model and serial number question in reply to QTR34, 09-22-2020 09:11:32  
RTN had long axles.



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pa don

09-21-2020 14:40:06




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
if it were clost to pa. I would take it of your hands



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clyde in colo

09-20-2020 09:10:06




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
Front axle and wheels look correct for a factory extendable. Swapping front ends was common and not that difficult. I have an RTU that had an "N" front end when I bought it. I have acquired a "U" pedestal and wheels to convert it back to match the serial tag.
On the one in the photo, the exhaust has certainly been rerouted to a Z style exit and exposed muffler. Rear part of tractor is strange......fenders look like red face UTS units, and axle and wheels don't look R.

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QTR34

09-20-2020 19:05:24




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 Re: RTN model and serial number question in reply to clyde in colo, 09-20-2020 09:10:06  
Thanks for the help. I do think its a conglomeration of tractors put together. Engine tag matches other tag on transmission but front axle, rear wheels, and rear fenders are likely not even from an R model.



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pa don

09-20-2020 06:05:18




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
look at fenders and exhaust I think it three in one



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sms

09-19-2020 16:16:07




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
Could be two tractors blended into one. I have one just like it. An RTU with an E front end. Engine serial number may not be of same time period as transmission. I think 1948 was the first year for the extendable front axle but not sure.



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molinegb

09-19-2020 17:23:54




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 Re: RTN model and serial number question in reply to sms, 09-19-2020 16:16:07  
Not with N in serial.



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sms

09-22-2020 11:53:52




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 Re: RTN model and serial number question in reply to molinegb, 09-19-2020 17:23:54  
Correct. Thanks. I think 48 RTEs are in short supply.



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JK2

09-19-2020 14:51:26




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
Up to and including 1947 models were all grouped together. Your serial number is from 1947. Beginning in 1948 the different models had separate serial numbers (RTU, RTS, RTE RTN & RTI).



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Rich'sToys

09-18-2020 21:18:52




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 Re: RTN model and serial number question in reply to QTR34, 09-18-2020 19:29:42  
An RTN would have the single front wheel. The front end you have would be an RTE. I don't THINK you could interchange those unless the whole front end was changed.
Was the manifold changed or the pipe rerouted to make the stack come up through the middle of the hood? Z's of that era did that. On an R the exhaust should exit through that hole on the left side of the hood.



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QTR34

09-19-2020 07:51:02




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 Re: RTN model and serial number question in reply to Rich'sToys, 09-18-2020 21:18:52  
The hole for the original exhaust is located on the left side like you said. Looks like someone modified it to exit on the right. I also agree that it should be an RTE based on the front axle but the serial number and model number are weird. The serial number on the plate appears to contradict the model number on the same plate.



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molinegb

09-19-2020 10:23:40




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 Re: RTN model and serial number question in reply to QTR34, 09-19-2020 07:51:02  
Any RTN serial plate have seen has a N. {Narrow} Have a 1940 RTN and couple RTE's.



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