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Carburetor dltx 71 vs dltx 72


 
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mikewood869
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PostPosted: Wed Sep 11, 2019 6:59 pm    Post subject: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

Are there any differences between dltx 71 or dltx 72 carbs? Power or anything?
 
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buickanddeere
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PostPosted: Thu Sep 12, 2019 4:23 am    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote


Roberts Carb used to have an online catalogue and parts book that specified every individual piece .
 
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mikewood869
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PostPosted: Thu Sep 12, 2019 4:36 am    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

I got a 71 instead of a 72 in the mail yesterday, so that's why I'm wondering.
 
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Pete in MD
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PostPosted: Thu Sep 12, 2019 5:16 am    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

The 71 is for some A, AR & AO straight gas tractors.
The 72 is for some A, AR, AO & 60 (single induction) all-fuel tractors.

The load nozzles are different.
 
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Resting Relics 1
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PostPosted: Thu Sep 12, 2019 7:36 am    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

Mike,
Seems if they put a 72 nozzle in the 71 carb it would work ok. Just my two cents. Good Luck!
John
 
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RandyB(MI)
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PostPosted: Thu Sep 12, 2019 8:24 pm    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

71 and 72 use same load nozzle , same throttle blade size. No change in power. All pertinent fuel control parts are same. 71 has spring controlled choke and little different pattern to pin port holes in bore wall by throttle blade. You won't notice any diff on tractor. The 71 shuts down tractor when throttle lever all way back whereas 72 does not so requires you to drain carb or just let it run out of fuel to stop...or use a magneto switch. 71 brings more $$$ but only because of public market perception. Same as the # 51 G carb does. If you bought what was represented to you as a 71...then you paid 71 price and make them give you a 71 or adjustment in price.
 
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Pete in MD
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PostPosted: Fri Sep 13, 2019 7:23 pm    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

RandyB(MI),

The 71 and 72 did not use the same nozzle.

According to FSB 182-S (8/1/51) the 71 used load nozzle 47-193 and the 72 used load nozzle 47-310.
 
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RandyB(MI)
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PostPosted: Fri Sep 13, 2019 7:47 pm    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

Doesn't matter what they came with back then, there is only one for both now. Pt # R 10116 . No one runs distillate or kero now anyway so a 72 with gas nozzle is a 71. gas nozzle is all you can buy now for the 71 /72. Most are running gas in their all fuel tractors now anyway so I would say it's a non-issue.
 
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RandyB(MI)
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PostPosted: Fri Sep 13, 2019 7:50 pm    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

The 71 is the better , more refined carb and worth the most $$$ Keep it.
 
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Pete in MD
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PostPosted: Fri Sep 13, 2019 8:50 pm    Post subject: Re: Carburetor dltx 71 vs dltx 72 Reply to specific post Reply with quote

I agree Randy. Thought you were talking about when they were new.
 
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