Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

John Deere Tractors Discussion Forum
:

John Deere H running bad high carbon

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

11-18-2023 12:27:46




Report to Moderator

My John Deere H is running poorly, keeps getting high amounts of carbon on spark plugs. I have had the carb professionally rebuilt, new wires new condenser in mag, changed plugs multiple times and checked the timing multiple times. What else could it be?




[Log in to Reply]   [No Email]
Jim Nauert

11-20-2023 12:09:29




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 12:27:46  
Running quite a bit better, put in some non resistor plugs and discovered one of the tappers was set too tight.



[Log in to Reply]  [No Email]
Mark-Ia

11-19-2023 09:03:29




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 12:27:46  
Turn the Load screw in on the carb. Black smoke is too much fuel. Just because it was rebuilt, doesn't mean the rebuilder set the carb to run correctly.



[Log in to Reply]  [No Email]
westga

11-18-2023 17:41:08




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 12:27:46  
I would check the intake air from end to end.
From where it enter to the carb. This will be the cheapest thing to do next. You can make sure the oil levels right in the breather also.



[Log in to Reply]  [No Email]
rustred

11-18-2023 17:01:04




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 12:27:46  
what else can it be?... a worn out engine. oil fouled. check the compression. are u monitoring if it uses oil?



[Log in to Reply]  [No Email]
Richard G.

11-18-2023 12:34:37




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 12:27:46  
Make sure the air cleaner is not clogged up to start off.



[Log in to Reply]  [No Email]
JIM MN

11-18-2023 12:58:18




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Richard G., 11-18-2023 12:34:37  
Get coolant temperture up to 200 degrees.....



[Log in to Reply]  [No Email]
Jim Nauert

11-18-2023 13:15:23




Report to Moderator
 Re: John Deere H running bad high carbon in reply to JIM MN, 11-18-2023 12:58:18  
I was discing with it so had the temp up, almost didnt make it home because no power.



[Log in to Reply]  [No Email]
Loosehandle

11-19-2023 05:29:49




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 13:15:23  
Sounds like its running on one cylinder sometimes, double check point gap and strength of spark when warm.



[Log in to Reply]  [No Email]
JIM MN

11-18-2023 15:15:36




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 13:15:23  
Other thoughts; does the tractor burn a lot of oil? And what gas are you using? Ethanol or not? Had the tractor been running OK before all this, now has lost power?



[Log in to Reply]  [No Email]
Jim Nauert

11-18-2023 17:05:36




Report to Moderator
 Re: John Deere H running bad high carbon in reply to JIM MN, 11-18-2023 15:15:36  
It was running so so but was giving off a ton of carbon, doesnt burn any oil.



[Log in to Reply]  [No Email]
JIM MN

11-18-2023 19:29:13




Report to Moderator
 Re: John Deere H running bad high carbon in reply to Jim Nauert, 11-18-2023 17:05:36  
Must be gas soot foul, does not use oil.. Use 87 octane gas.. Lean out carburetor,too rich.. Spark-plugs- try Auto-Lite 3116 non resistor with your magneto, they are the best or champion D21 or D23. Set plugs at .030.. Spark plug wires, copper centers.. Does magneto put out a hot blue spark.. And once again, when working tractor get coolant temp to 200 degrees plus.. Give these a try..

[Log in to Reply]  [No Email]
Jim Nauert

11-19-2023 04:26:34




Report to Moderator
 Re: John Deere H running bad high carbon in reply to JIM MN, 11-18-2023 19:29:13  
Thanks, Ill try those plugs. Right now using 386 and those I thought were non resistor but discovered they are a resistor plug. Hopefully its a simple fix



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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