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

Garden Tractors Discussion Forum

how difficult is it

Welcome Guest, Log in or Register
Author 
mr_male

12-09-2004 07:11:33




Report to Moderator

does anyone know how hard it is to change valves and valve guides on a kohler k-341 engine. had new rod, piston, rings and camshaft put in, but still smokes. cylinder was true enough to go back with standard piston and rings, but on start up, it puffs blue for about 5 minutes, and during use, it uses about a pint to quart of oil to mow 2 acres.




[Log in to Reply]   [No Email]
JT

12-10-2004 09:08:00




Report to Moderator
 Re: how difficult is it in reply to mr_male, 12-09-2004 07:11:33  
If this engine had a lot of hours on it and you did not get it checked in at least 6 places up and down the cylinder with a cylindr gauge, that could be your problem. Kohler cast iron engines as Lucass said, get real bad taper in them , and they also get eggshapped real bad. A kohler engine usually cannot get by with just a piston and rings, nedds the whole machine shop route. Unless your valves are sloppy loose in the guides, it will not cause a lot of oil consumption like you are describing, then it would not run right.

[Log in to Reply]  [No Email]
mowr

12-09-2004 20:47:51




Report to Moderator
 Re: how difficult is it in reply to mr_male, 12-09-2004 07:11:33  
(1)This can be caused by the center (oil scraper) ring being installed upside down. (2)If chrome rings are used, it can sometimes be difficult to get them to seat. (3)I bought a non-running tractor (with Kohler engine) once that had "just been rebuilt." Cheap aftermarket parts had been used. The new exhaust valve had warped and apparently the rings had also. That was one of those 'you get what you pay for' lessons.

[Log in to Reply]  [No Email]
lucass

12-09-2004 09:08:16




Report to Moderator
 Re: how difficult is it in reply to mr_male, 12-09-2004 07:11:33  
unless its very loose the guide wont pass much oil at all, usually the valve will quit seating and it will run bad. if you dont bore these engines you wont get good results and long life.i have seen many not worn at the top and were thought to be ok but worn alot in the center of the ring travel. lucas



[Log in to Reply]  [No Email]
Mark R.

12-09-2004 07:51:47




Report to Moderator
 Question in reply to mr_male, 12-09-2004 07:11:33  
Just a thought, but did you hone the cylinder when you installed the new rings? I will be interested to see the results after you get it completed. Please post for us to see. Good Lick, Mark R.



[Log in to Reply]  [No Email]
Bob

12-09-2004 07:40:54




Report to Moderator
 Re: how difficult is it in reply to mr_male, 12-09-2004 07:11:33  
With a flathead engine, worn INTAKE valve guides are not nearly so likely to cause oil burning as worn guides on an OHV engine, because of their location. (The oil has to move UP reather than DOWN.)

Of course, BADLY WORN guides are not good!

It takes a piloted punch, perhaps on an air chisel, to knock the guide(s) out and install new ones, and then the seat needs to be ground concentric with the new guide.

Unless the intake guide wear is EXTREME, I would suspect the bore is distorted a bit more than you thought, or the new rings haven't seated, causing your oil burning.

Also, check for proper assembly of the crankcase breather. The one-way valve in the breather is supposed to maintain a slight NEGATIVE pressure in the crankcase, This can be checked with a manometer. You can find instructions for this in the free manual downloads at www.kohlerengines.com.

[Log in to Reply]  [No Email]
Roger in Iowa

12-09-2004 12:48:33




Report to Moderator
 Re: how difficult is it in reply to Bob, 12-09-2004 07:40:54  
Does your engine have a short rubber hose going from the valve adjustment area to the air cleaner housing? If so, make sure it is properly installed and not kinked causing crankcase pressure. You have to pull it into the air cleaner housing so the rubber ridge is inside the housing.

Good luck,
Roger



[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