Beginner Question - Correctly Identifying the Carburetor 512

[MTUser2021]

I am trying to learn lawnmower/small engine repair. Our old Murray 21" 5hp self propelled mower with a Tecumseh Mark V engine started running high all the time. I did some research on youtube and removed the carburetor. The rubber priming button has completely decomposed.

I was planning on trying to rebuild it, but it looks like replacement carburetors are not that expensive, about $15. In my mind the first step is to identify it correctly to replace it. I am attaching a picture. It looks to me that this is 512, which from a reference that I found here is a 631793. But, when I search for that model on Amazon or eBay, every carburetor does hot have the angle fuel line, they are all straight out.

Have I done the right analysis? Is this a 631793? Can take off the straight connector from the old carburetor and replace it with the angle one? Anything else to help a beginner be successful with his first repair? I can provide more detail or more pictures if that would be helpful.

 

[Rivets]

Post the numbers on the ID tag and we will be able to tell you exactly which carb you have. This manual will probably help you in the future. https://www.mymowerparts.com/pdf/Te...P-4-CYCLE-L-HEAD-FLAT-HEAD-ENGINES-692509.pdf

 

[StarTech]

I would need the number stamp into carburetor and not the casting number.

Tecumseh carburetors will have a manufacturing number stamped on the mounting flange or the body followed by a date code. The mfg. no. on recent models is four digits (early can 2-3 numbers) and is followed by three characters for year, month and day of manufacture.

 

[MTUser2021]

Thanks for the help. I'll find the numbers. I'll work on identifying the engine too.

Post the numbers on the ID tag and we will be able to tell you exactly which carb you have. This manual will probably help you in the future. https://www.mymowerparts.com/pdf/Te...P-4-CYCLE-L-HEAD-FLAT-HEAD-ENGINES-692509.pdf

 

[MTUser2021]

Thanks for the help. I'll see what I can find looking at the carburetor more closely.

I would need the number stamp into carburetor and not the casting number.

Tecumseh carburetors will have a manufacturing number stamped on the mounting flange or the body followed by a date code. The mfg. no. on recent models is four digits (early can 2-3 numbers) and is followed by three characters for year, month and day of manufacture.
View attachment 56750

 

[MTUser2021]

Following your advice, I found the number 1548 followed by what looked like LAF, but the middle character is really faint, so that is just a guess. Using the resource, I see that a 1548 is a 632795A. When I look on Amazon, I see that those are available for $14.29 with free shipping and good reviews. More encouraging is the ads specify this is for 5HP lawnmower engine. And, as a bonus, the reviews stated that many start and run problems were fixed by installing the carburetor.

The carb gets here on Thursday June 3, so I know what I will be doing next weekend!