1950 JD B Carb

[isuvinny]

I am working on a B that hasn't run in several years. I have the carb off and am trying to get it apart to clean it (first time ever doing this). I'm looking for tips on how to get the plugs out. The screws won't come out, and I don't want to break anything. Also - can I get by with the basic gasket kit and maybe a new float? I would appreciate any advice and/or suggestions. Thank you!

 

[Loosehandle]

A little heat and the right screwdriver goes a long way to getting the little brass plugs out. If slots are already spoiled its time for drilling and tapping. So you might need a kit with new plugs.

 

[a49deere]

you tube is your friend. Look up your carb number on there, should be a DLTX 67 or maybe a 73. I know there is a 10-part series on rebuilding these carbs that is very informative!

 

[Fixingfarmer]

I am working on a B that hasn't run in several years. I have the carb off and am trying to get it apart to clean it (first time ever doing this). I'm looking for tips on how to get the plugs out. The screws won't come out, and I don't want to break anything. Also - can I get by with the basic gasket kit and maybe a new float? I would appreciate any advice and/or suggestions. Thank you!

Might as well get the comprehensive kit watch the video and do it once. Probably should get a new float as well

 

[Mike(NEOhio)]

I've done and found that a "good" screwdriver and heat works. Propane torch is all that's needed. Heat till it just smokes when you take the flame away. If you can clamp it down use both hands and some chin on the screwdriver and apply the torque slowly. Roberts has the plugs if you need new.

 

[BillWinn]

The A,B,M tractors are fantastic. My grandpa had an M. If I recall the A was around 300 CID. In the late 90's my cousin tore down the engine in his A to rebuild it and he said the pistons were the size of coffee cans! Great tractors I hope you get that B sorted. I'm with Mike, a little gentle heat works wonders.

 

[a49deere]

The A,B,M tractors are fantastic. My grandpa had an M. If I recall the A was around 300 CID. In the late 90's my cousin tore down the engine in his A to rebuild it and he said the pistons were the size of coffee cans! Great tractors I hope you get that B sorted. I'm with Mike, a little gentle heat works wonders.

You think the "A" pistons are big!! Take a look at a model "D" piston, 5.5" vs 6.75"

 

[BillWinn]

You think the "A" pistons are big!! Take a look at a model "D" piston, 5.5" vs 6.75"

That’s insane to me. I love those old two cylinder tractors. Once in a speech class in college I was assigned “vocal exercises “ at the start of class I had a whole class saying “kapucka kapucka kapucka”

 

[Lynerd]

isuvinny When you get it apart find a bead blaster and clean it up with it. Make sure the little hole in the bottom of the stem when you take out that plug is clean. That is where the idle circuit gets its fuel from. Lynn

 

[a49deere]

Just my opinion, I would steer away from using a bead blaster. If anything, use a soda blaster and lightly boil or wash, then use an air compressor to blow out passageways. Soda is water soluble; beads will not be!

 

[matthies]

I use vinegar to soak rusty carbs, hasn't been one yet that i didn't get clean, never mess with the small brass plugs. But don't leave overnight, it gets to bubbling pretty good and might hurt some parts.

 

[Steven Allen]

Old hands have told me that the key to using heat on the plugs is to heat them until you see the flame turn green. Then they will come out relatively easy. It worked for my son when he rebuilt his B's carb.