Yesterday's Tractor Co.
Shop Now View Cart
   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
Classic Trucks
Kountry Life
Database Forum Testing Area

Detroit 353 mot maintaining RPM's

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

08-08-2012 13:35:48

Report to Moderator

Hi , I have a mid 70's Detroit 353 mounted to a large irrigation pump . 2 days ago while I was pumping water I was in the fields and noticed the sprinkler heads were losing water pressure and then return to normal pressure then to lose pressure again and return to normal .

I went to the pump and every 2 minutes or so I could hear it kinda lugging or working hard to maintain RPM's . After doing obvious checks ( inspected intake screen on water suction pipe , installed new fuel filters on the engine ( primary and secondary ) checked the air filter which was clean I ran it again and it still was laboring to run normal RPM's .

The engine does not seem to be smoking while this is happening .

Maybe ejectors need adjustment ?

It just does not Rev up like it use to , seems to labor somewhat when I turn the throttle up to set engine speed .

Hope I can get reply's soon as I need to water my crops .

Thanks for any assistance .


[Log in to Reply]   [No Email]
Al B

08-09-2012 18:37:18

Report to Moderator
 Re: Detroit 353 mot maintaining RPM's in reply to AL B, 08-08-2012 13:35:48  
I checked fuel pressure today 70 psi at fast idle , also connected a piece of clear tygon tubing on the suction side fuel line to look for bubbles to check for any air leaks and found none .

IF I do not fill my water pump priming tank to pump water right off and start the engine and run it , it runs excellent rev's up real nice sounds great etc .

BUT once I fill the priming tank of the water pump and start pumping water that's when the engine bogs down and the rpm's slowly drifts up and down.

I've inspected everything on the water pump ( inlet screen , inlet pipe outlet pipes , inside water pump housing ) thats all clean , once I apply a load to the engine thats when it bogs down .

Use to be able to rev it up with no problem when I needed to pump water before this problem started .

Going to have to have a good diesel guy come check it I guess .

[Log in to Reply]  [No Email]
730d se

08-09-2012 17:03:43

Report to Moderator
 Re: Detroit 353 mot maintaining RPM's in reply to AL B, 08-08-2012 13:35:48  
Likely a restriction in either fuel or air. It will not run good anytime if the injectors are bad, the fuel pump is gone, etc.
Check the complete air intake for anything that could be blocking it. Check entire fuel system, including inside the tank.
I had one that had a small mass in the fuel tank. It ran great until that mass got over the fuel outlet, then it would act up. I could let it sit a while (mass would move away from outlet) and it would run fine again, for a while.

[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 © 1997-2016 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