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
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

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

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

Research & Info
Articles
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
Glossary

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

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
  
Garden Tractors Discussion Forum

Kohler 25 HP popping from exhaust under load.

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

09-03-2017 18:46:23




Report to Moderator

I think I have this fixed but wonder if anyone else has had this problem? It seemed as though it could have been a sticking exhaust valve. Ran some combustion chamber cleaner through it and the problem seems to have resolved. Will know better tomorrow when I mow for an hour.




[Log in to Reply]   [No Email]
Mule Meat

09-17-2017 19:46:23




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-03-2017 18:46:23  
I should have explain more about smoke coming from the oil dip stick tube. You will see a lot of it after the engine has ran until hot, shut off and then checked.. You will have a small amount of smoke which is normal. But with a blown head gasket it really pours out of the tube.
The best Kohler head gasket kit is OEM Part number 2484104S.

The head gasket has metal that fully encloses the combustion chamber and oil passages. It also includes everything shown in the photo below. If you get two kits you will end up with an extra set of exhaust gaskets and intake O-rings. Kohler use to include a new set of studs to replace the head bolts. They no longer do that for they discovered the problem was in the head gasket design in stead of the bolts. So if you engine has bolts. Just reuse them. If it has studs use the new one with the new washers..

I must note that it takes two kits to do both sides (since you must tear the engine down for one. May want to go ahead and do both both sides while it is apart).



PS: Not many people know that the nuts for Kohler heads can be used for bar clamp nuts on a lot of chainsaws. I keep a few of them in the small tool box that hold my saw tools and files just in case..

[Log in to Reply]  [No Email]
IndianaSteve

09-17-2017 16:27:57




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-03-2017 18:46:23  
Got a chance to check it. No smoke but lots of pressure and oil blowing out the dipstick tube. Thanks Mulemeat. Got gaskets ordered.



[Log in to Reply]  [No Email]
Mule Meat

09-06-2017 13:30:46




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-03-2017 18:46:23  
Courage engine.. Check the Intake and Exhaust valve lash.

Command.. Pull the oil dip stick and watch for smoke coming from the filler tube (yes).. Pull the plugs and check them (especially the right one, sitting on the mower looking forward). Blown Head gasket.



[Log in to Reply]  [No Email]
IndianaSteve

09-04-2017 14:22:44




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-03-2017 18:46:23  
I respect Seafoam but the stuff I used is a Ford recommended combustion chamber cleaner that does work miracles. Didn't work here. I've got something else going on. Only get the popping when the engine is hot and working. Sitting still at WOT with no load there is nothing going on. I am a Ford technician by day, small engine repair by night. I find module networking and electronic engine control less daunting than a small engine with problems. Anyone else seen this with an idea?

[Log in to Reply]  [No Email]
Jacks

09-08-2017 19:21:07




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-04-2017 14:22:44  
I have a Kohler command 25 hp that was backfiring under load. Backfired hard enough to bend some valves. The problem turned out to be a loose electrical connection at one of the ignition coils. It got enough current to fire under idle and light load, but would misfire at full speed and under load. Hope this might be of help.



[Log in to Reply]  [No Email]
Stroby

09-04-2017 05:41:02




Report to Moderator
 Re: Kohler 25 HP popping from exhaust under load. in reply to IndianaSteve, 09-03-2017 18:46:23  
I'd give it a drink of seafoam. Sounds like carbon buildup and seafoam will remove that while running.



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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