Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
John Deere Tractors Discussion Forum

H running issues

Welcome Guest, Log in or Register
Author  [Modern View]

10-09-2018 17:03:37

Report to Moderator

Looking for opinions. I have a new to me '41 John Deere H, hand start. Starts fairly easy and idles well. When I get above 2/3s throttle it starts cutting out and sounds like it is missing bad. I may see a puff of black smoke every now and then. It doesn't matter if I am in gear or neutral. It will smooth out and run really well when there is a load on, say going up a big hill in 2nd or 3rd then start to sputter once you get back on level ground.

First thing I tried was new Autolite 3116 plugs. I noticed the old plugs were black which makes me thing it's a carburetor issue. I also cleaned and checked the point gap. I had several friends say that it sounds more like an ignition problem and I should try a condenser first. It has a Wico C magneto. I just replaced the condenser tonight and it made no difference at all. Does this sound like a carb or ignition problem?
What gets me is how smooth it runs up a hill wide open. Any ideas are welcomed and appreciated.

[Log in to Reply]   [No Email]

10-12-2018 08:59:27

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
Yes, you're correct amtrac, I realize its age. I will probably get the carb professionally rebuilt this winter but I am unwilling to part with it while the weather is decent enough to do something with it.

I asked again since it was way out of adjustment. I wasn't sure if of any tips to tweak it further. The tips I got were fantastic and I appreciate the help.

[Log in to Reply]  [No Email]

10-10-2018 17:45:56

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
I checked my two needles tonight. The idle was out about 1 turn. The load needle was 4 1/2 turns out! I closed it and opened it 1 1/2 out. It ran so much better! It still want wants to cut out some in 3rd gear with wide open throttle. I don't notice it as much in 2nd for some reason. It's not near as bad as it was though. I saw no black smoke tonight.
It also wants to cut out when there is a load on it, like going up a big hill. I tried opening the load needle up to 2 turns out but didn't seem to change it much. I wanted to keep adjusting but it was almost dark out. What should I try next?
Thanks for all the help so far!

[Log in to Reply]  [No Email]

10-12-2018 06:46:03

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-10-2018 17:45:56  
Well, you have a 71 year old carburetor. If it is all original, chances are some things in there are worn out. You can adjust all you want, but won't fix the problem. If you have the know how and tools, get a rebuild kit and install it. There are passages inside that need to be cleaned out with a drill bit of the PROPER size. Check GM magazine ads, there are several carb shop advertizers that specialize in tractor carb rebuilding and they most all do a fantastic job. Gotta spend the bucks, but if you have carb problems, more than likely they will fix you up and the machine will run fine.

[Log in to Reply]  [No Email]

10-10-2018 06:47:50

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
Thanks Everyone. I have not messed with the carb too much yet. I will start there and let you know how it goes.

[Log in to Reply]  [No Email]

10-09-2018 19:28:54

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
If it runs better under load, it is NOT ignition issue. The more load , the more a weak ignition will show up. When it's sitting still at 2/3 throttle, and sputtering etc, add a little choke and see if it smoothes out. I'll bet it will. that says it's lean on the idle circuit. That means either too little fuel or too much leaking air/vacuum . The "too little fuel" can be plugged idle passages in carb or idle needle adjustment needs opened up 1/2 turn. If you open it up and doesn't change then it's not adjustment issue. Air leaks can be sloppy throttle shaft/bushing , worn out throttle blade and bushings not pushed into bore enough. Can also be cracked manifold and/or leaking gaskets. (spray WD 40 around these places to sense leak, engine will smooth out) Set load needle at 1 turn out and idle at 1 1/2 turns out to begin. Carb probably needs re-built. Send me an e-mail if you need that done. My e-mail is open.

[Log in to Reply]  [No Email]

10-09-2018 19:26:02

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
Sounds like you are running too rich. Black smoke is a telltale of that. The engine smooths out under a load because the governor opens up the throttle, effectively giving it more air and leaning out the mix going to the cylinders. Or a timing problem, but I doubt that. It would run badly even under a load. Adjust carburetor and check for clogged air cleaner. Just my humble opinion. See what other H owners have to say, there's a lot of knowledge here.

[Log in to Reply]  [No Email]

10-09-2018 19:24:51

Report to Moderator
 Re: H running issues in reply to jaypowers, 10-09-2018 17:03:37  
Sounds like your idle jet setting is too rich. When they are too rich they start fairly well, you won't need to choke it. They will idle fair but carbon up the plugs real fast. When you are running fast and not pulling a load, the carb runs off the idle jet. When you start up a hill and the governor opens up the carb runs more from the load jet. Warm up your engine, then run at fast idle, close load jet gently and count turns. Engine should still run. Now adjust idle jet for smooth running. Once set, open one to two more clicks. Now open load jet back up. Idle tractor down then open throttle quickly, should accelerate without hesitation. My idle jet is about 3/4 turn open on non-ethanol regular gas.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy