MS carb help

[MarlinSlayer]

OEM carb for NAA is supposed to be a TSX 428 from my research...maybe a 580. Of course this carb has no brass plate on it. underside of CARB says 10A 355 and then a 4. Inside one of the chambers of the top is marked 227-100. Does anyone know how this correlates with Carb models?

My carb looks just like the NAA carb on the Steiner tractor youtube vid with Rachel when she rebuilds naa carb....but I know...."they all look alike".

Is it safe to assume it's a TSX and will a generic rebuild kit work? All needles are clean, but gaskets are shot.
No spring on the choke door and no spring on the float valve....could that be contributing to carb issues?

Which kit should I buy?

 

[Soundguy]

the spring on the float helps, but many don't have them. ( lack of a spring does not CAUSE a problem by itself ).

the choke flapper SHOULD hav ethe spring loaded door, and a return spring.

for those ford MS carb gaskets.. you are basigally looking at large or small. so yeah... buy the kit with the gasket that fits.

 

[MarlinSlayer]

Thanks I figured..but I wanted to know for sure

 

[Soundguy]

yup.. nice thing about those ms carbs. if you are only needing gaskets.. buy the cheapest kit with the large or small gasket you need.

I even started making my carb gaskets a few years ago, after templating a few gaskets and matching thickness of paper used.

I then ran them off on the copier at work, making the template right on the gasket paper

One tip.. don't use any gasket sealer, and have clean gasket surfaces to start with. ( no old paper, gum from fuel, or sealers ).

now.. apply a bit of grease to the gasket, both sides using a lean finger or qtip.. whatever.

not a bead.. just a thin smear making the paper dark.

this makes the gasket pliable, and less likely to tear.. plus if/when you pull the halves apart to tweak something you thought was clean.. the gasket 'PROBABLY' won't tear and can be re-used. Sometimes you will get a cantankerous flaot that you have to dink with the ears or position it hangs to get it off a wall, etc.. and you might have that top off a half dozen times. that greased gasket helps. plus , greased.. they tend to seal better IMHO.

In fact. that's one test i use to see if I have a vacume leak at a carb. I take a couple squirts of gun grease, or a handfull of axle pail grease, and if I think I have a vac leak at the carb halves, throttle packing, or carb to manifold gasket ( grease that one too ). then i run a finger of grease around the gaskets while she is running, and put a dap ont he throttle shaft. if she suddenly changes engine sound and enriches with application of the grease.. i know i have a vac leak. the grease is thick enough to seal off the air leak for a test...

 

[MarlinSlayer]

yup.. nice thing about those ms carbs. if you are only needing gaskets.. buy the cheapest kit with the large or small gasket you need.

I even started making my carb gaskets a few years ago, after templating a few gaskets and matching thickness of paper used.

I then ran them off on the copier at work, making the template right on the gasket paper

Genious!