Help with a Marvel-Schebler on a 40U

[jCarroll]

I have the MS manual for John Deere tractors. It lists a TSX-530 carb for the model 40.
I'm cleaning the carb, intending for new gaskets, seats, etc.

My carb bowl has 10-A38 cast into the bottom of the bowl.
The flange which mates to the intake manifold has 255 stamped on the mating face.
I can't find any of these numbers in the MS manual.

I'm guessing I have a carb which did not come with this tractor. Can anybody point me to a cross-reference table or a "master index" so I
can tell what carb I'm holding in my hand?

TIA

 

[Mark-Ia]

Is there a round brass tag affixed to the carb? Or 1 of the round bosses on the side of the upper half have a number stamped in them. The John Deere carb service manual shows the 10-A38 bottom in there rebuild pictures.

 

[jCarroll]

No tag.
I'll look for another number - and leaf thru the rebuild manual.

Thx

 

[Lon in NE]

Just to clarify, you do have the Marvel-Schleber repair manual, but not the JD Carb service manual SM2024? And yes, you have the correct carb # if it's a gas burner. If it's all-fuel, you should have a TSX562

 

[James Howell]

"[b:654c4848f0][i:654c4848f0]It lists a TSX-530 carb for the model 40[/i:654c4848f0][/b:654c4848f0]"

Correct.

Take a look at the table below.

"[b:654c4848f0][i:654c4848f0]My carb bowl has 10-A38 cast into the bottom of the bowl[/i:654c4848f0][/b:654c4848f0]"

Correct.

Take a look at the photo below of the fuel bowl.

"[b:654c4848f0][i:654c4848f0]The flange which mates to the intake manifold has 255 stamped on the mating face[/i:654c4848f0][/b:654c4848f0]"

Correct.

Take a look at the photo below of the throttle body.

"[b:654c4848f0][i:654c4848f0]I'm guessing I have a carb which did not come with this tractor[/i:654c4848f0][/b:654c4848f0]"

The carburetor that you have is a TSX 530 which is correct for your tractor.

Hope this helps.

 

[jCarroll]

Guess I jumped to a wrong conclusion......

Thx very much for confirming I have the TSX530 carb.

James, how do you get your work done with such well detailed explanations?

Thx,
jC

 

[James Howell]

"[b:654c4848f0][i:654c4848f0]how do you get your work done with such well detailed explanations?[/i:654c4848f0][/b:654c4848f0]"

My primary responsibility each day is filling eight dog food bowls; leaves me plenty of "[i:654c4848f0]leisure[/i:654c4848f0]" time.

This one was easy because this TSX530 is on a shelf about six feet from the computer.

A new rebuild kit has been sitting next to it for several months.

The brass tag on the front of the throttle body is stamped TSX-530 with 6 53 stamped underneath.

Took several photos of the brass tag, but the flash would "[i:654c4848f0]blind[/i:654c4848f0]" the characters and make them unreadable.

Photographs and scanned John Deere publication information usually provides good evidence for accurate answers.

 

[Hotflashjr]

My 40U has the brass tag saying TSX530 and has the same cast numbers as James and you report. I would second what James said.

 

[buckeye al]

See the tag riveted to the throat just below the mounting flange? That tag should have the model number & other info you need. Those numbers in the pictures are more likely casting numbers from the foundry.

Hope that helps.