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

Discussion Forum
:

W-400 Diesel Won't Idle

Welcome Guest, Log in or Register
Author 
Ross

09-17-2001 19:12:27




Report to Moderator

My W-400 D will run and idle fine on gas, but when I switch it over to diesel it wants to wind up all the way. How do I slow it down and where is the governor on it at? Also, how do I adjust the gas starting valves? Thanks -Ross




[Log in to Reply]   [No Email]
brianh

09-18-2001 06:16:54




Report to Moderator
 Re: W-400 Diesel Won't Idle in reply to Ross, 09-17-2001 19:12:27  
Has your tractor been sitting for a while? When I first got my MD running after ????? years sitting, it did that. The governor linkage inside of the injection pump was rusty and stuck. Take the oval shaped cover off of the side of the pump and confirm that the linkage inside under the cover moves freely back and forth when the throttle control is moved from one extreme to the other. I'll bet it smokes like heck when it's running on gas from all the diesel fuel it's burning too. Mine sure did.

[Log in to Reply]  [No Email]
Ron

09-18-2001 05:42:24




Report to Moderator
 Re: W-400 Diesel Won't Idle in reply to Ross, 09-17-2001 19:12:27  
Most of the time it's in the throttle linkage, it's worn. You might need to adjust the idle on the out side of the pump, the two nut with the two springs.



[Log in to Reply]  [No Email]
Haas

09-18-2001 05:35:35




Report to Moderator
 Re: W-400 Diesel Won't Idle in reply to Ross, 09-17-2001 19:12:27  
The governor is inside the injection pump case. I have an MD, not a 400, but I think they are similar. It sounds as though you may not have the friction control which is part of the starting control mechanism mounted on the side of the block adjusted properly. The speed control lever on these engines is tight and takes some effort to move because of that friction control. If not set tight enough, it could be letting the speed control go to max. If it is not that, the problem is going to be inside the injection pump. Is the engine running away, or just going to max high idle??

To adjust the gas starting valves, you have to remove the valve cover and adjust the clearance. Starting valve clearance for the MD is .060 to .080 inch(valves closed, that means starting mechanism in diesel position). The regular engine valve clearance is .017 inch. If you are getting into adjustments on the starting system, I strongly suggest you get a service manual. There are a number of things that need to be checked out to get it all right.

[Log in to Reply]  [No Email]
Ross

09-18-2001 13:18:53




Report to Moderator
 Re: Re: W-400 Diesel Won't Idle in reply to Haas, 09-18-2001 05:35:35  
The W-400 I bought with an MD and they had been sitting for a year or two.It wants to run wide open but I'll check over everything you guys suggested. Thanks -Ross



[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