john deere b

[Anonymous-0]

i really need help to fix my tractor. it is a 19 44 b i have spend all winter restoring it, i have triple checked everything. it doesnt run smoothly i think it is a timing or fuel issue.
i put the choke on halfway and it smooths out but i turn choke of it misses i can turn both my load and idle screw completly out and it doesnt change anything i have cleaned carb 5 times new plugs set to .30 new coil rotar cap wires condenser and points wich i set to .15. i am at my witts end. my dad is coming to visit this weekend and there is a pull. but i cant take it the way it is running. please help
thanks
jason

 

[Gene Hillman]

This could be a lot of things but if the choke seems to help the problem it would suggest that the problem is air/fuel ratio related. Could be in the carb, dirt, float setting, cracked part, gasket leak. Also could be intake manifold or gasket air leak which you are compensating for by choking. These are just some of the possibilities. I assume you mean .030" and .015" gaps not .30" and .15"

 

[Kurt_JDB]

Jason,

Have you cleaned out the so called "secret passage? on the carb stem? What size number drills did you use to clean the passages? Did you remove all the brass screws and the nozzle?

We can take it from there and give you some help...Anybody can do this, but it does take patience and a little bit of knowledge.


Kurt

 

[jason reese]

thanks for the quick replys. i blew everything out i never ran a bit through it. if you look inside the carb there is two small holes. i blew them out and a little stuff in the one i blew through the center venturi i guess you would call it. if you take the bowl off and on the bottom side of the carb housing there is a goofy looking hole not sure what that one does but is the only one i am not sure if air is going through. my carb is a dltx 71. is that too big for a b? would a carb rebuilt kit make i difference? all the internals look good. or should i get a rebuilt one so i can elliminate the carb and pursue timing?.
another concern i have is it possible for the camshaft and crank gear alighnment marks be off? i dont have the best of powere either. i entered in a pull two weeks ago and it bogged down my front end never came off the ground and the tires never spun. i just ran out of power. i think the two issues are related.
thanks everyone for your suggestions
jason

 

[PopinJohn]

A DLTX-71 is for a model A John Deere.
A B model will run with a 71 on it, but I don't think you can the correct air/fuel ratio just right for the B engine.
In my opinion, you really need a DLTX-67 carburetor that is in good working order.
MikeShelby

 

[Kurt_JDB]

Jason,

To put one of these carbs in good working order, you really must take out all the plugs and nozzle and carefully turn (by hand!) the right size aircraft number drills through all the passages. The problem is that they tend to get rusty inside.

It will take a little time for you to learn how to do this and assemble the tools. There are other issues you may need to address such as the needle valve and seat and float height. Getting the brass plugs out can be a challenge, and if you don't go about it the right way, you may strip the head.

But as Mike Shelby pointed out, you have the wrong carb so you may want to either buy the correct rebuilt carb and trade yours in, or find one to rebuild.

Hey let us know what you want to do, and we will help! Do treat the carb you have gently, as it is valuable and good ones are gettin' scarce.

Kurt

 

[Greenday]

Explain what you mean when you say you cleaned carb. Soaking or spraying these carbs with carb cleaner will not get them clean! You need to first remove all the brass plugs then buy the correct size passage drills set and clean all the passages in the carb. These carbs are steel and they rust inside! Only use the drills by hand and not chucked in a electric drill.Hope this helps. Dave

 

[gtx1967jewison]

Unless you've removed every single brass plug in the carb you've rebuilt nothing. It still has plugged areas & will never ever get clean any other way.

 

[flatlander in vt]

Had Mike Shelby rebuild 3 carbs. He does agreat job at a fair price. He take them all part cleans everything, replaces only those parts that are bad. He even sent a picture showing the internal after they were claened.
Highly recommend him.

 

[Anonymous-0]

Rick, I think there are others that can rebuild a carb out there................

 

[johndeereman]

Don"t expect much out of it power wise I have a restored 43 b great tractor on the farm but forget about it on a track just too darn heavy for the power they have and the fast gearing

 

[Greenday]

Sounds like you need to learn how a 2 cylinder carb operates first so you will know how to work on them and adjust them

 

[60nB]

I have a 44 B. When I got it I had the same issue and it had a dltx 71 on it. I tried like heck to get it running right but I couldn"t. Rebuilt the carb, went through the whole engine etc etc. I finally broke down and bought a dltx 67 (it has the later B block on it), rebuilt that carb and now it runs like a dream. At idle it still misses every now and then, but once I put a load behind it it doesn"t skip a beat. I agree, get the right carb.

 

[jason reese]

thanks for all the help now the next question is you recommended a dltx 67 carburator but that is for serial 200000 and up mine is 159000
i called sharps they said i am supposed to have a dltx 34 can anyone confirm this before i order one? i now have a dltx 71 for sale lol i will keep you all posted if it is the problem.

 

[Kurt_JDB]

It is true that the DLTX-34 carb was the one your tractor came with. The DLTX-67 is a better carb however, and should work fine on your tractor . You could also use the Late B allfuel carb, the DLTX-73

Kurt

 

[RandyB(MI)]

I just happen to have a '50 B with a 71 carb. It starts , idles , accelerates and pulls under load just fine. Had it on an 8' JD drag disc in light loam at full angle and in 4th gear last night. Never faltered even when turning at the ends with brakes to help turn sharp (large garden plot). Don't know what to tell ya but it AIN'T because it's a 71! I just did the carb on my '37 A (correctly) and what a difference! Idles right down to almost nothing and does the same disc in hi gear even in the corners. Get your carb "right" and clean out the tank , sediment bulb/screen and lines. Until you do that you can't diagnose any other tractor problems.

 

[jason reese]

well i told you guys i would let you know what the problem was, and i ordered a dltx 34 from mike shelby and it solved my problem,it runs like a deere!!!! thanks mike for the great carb great service and speedy delivery
jason

 

[RandyB(MI)]

Before you sell that "71" try it on someones good running late "A" and I'll bet you it won't run any better than your "B" did. Otherwise you will have to sell it as a "rebuilder" carb or a buyer will be a little irrate.