Only Cub Cadets

PLEASE PATRONIZE OUR SPONSORS!

CC Specialties R. F. Houtz and Sons Jeff in Pa.

P&K Cub Cadet Machtech Direct

Cub Cadet Parts & Service


If you would like to help maintain this site & enhance it, feel free to donate whatever amount you would like to!




Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Engines > Kohler Engines
Reload this Page Valve clearance
Register FAQ Calendar

Notices

Reply
Page 1 of 2 1 2
 
Thread Tools Display Modes
  #1  
Old 02-06-2014, 11:33 AM
Thomas782 Thomas782 is offline
New Member
  
Join Date: Nov 2012
Location: MA
Posts: 9
Default Valve clearance
KT-17s one of my intake valves to tappet has a clearance of .020, the the book indicates .003-.006. Could some comment on how this effects the operation of the valve over time. thanks Thomas
Reply With Quote
  #2  
Old 02-06-2014, 11:37 AM
cubs-n-bxrs's Avatar
cubs-n-bxrs cubs-n-bxrs is offline
Grand Member
  
Join Date: Jun 2010
Location: New York
Posts: 1,934
Default
What engine are you talking about ?
__________________
149,682,1641,1711 with a 12hp in it 1 8" brinly plow 1 10" brinly plow 451 snow blower,H-48 International snow thrower 42" york rake with fold down grader blade.
Reply With Quote
  #3  
Old 02-06-2014, 12:27 PM
Sam Mac's Avatar
Sam Mac Sam Mac is offline
Administrator
  
Join Date: Feb 2010
Location: Galax VA
Posts: 18,863
Default
Kelly he said a KT17.

My guess is if you have that much clearance you have something wrong like the valve is not closing all the way.
__________________
2264 with 54 GT deck
1641 AKA Black Jack with a 402-E Haban Sickle bar mower
JD317 dump truck
BX2670 with FEL
Reply With Quote
  #4  
Old 02-06-2014, 12:36 PM
J-Mech J-Mech is offline
Banned
  
Join Date: Apr 2013
Location: Oblong, Illinois
Posts: 17,594
Default
Quote:
Originally Posted by Sam Mac View Post
Kelly he said a KT17.

My guess is if you have that much clearance you have something wrong like the valve is not closing all the way.
Agreed.
Or a worn cam lobe......
Either way, I'd say time to pull the heads and have a look-see.
Reply With Quote
  #5  
Old 02-06-2014, 01:11 PM
cubs-n-bxrs's Avatar
cubs-n-bxrs cubs-n-bxrs is offline
Grand Member
  
Join Date: Jun 2010
Location: New York
Posts: 1,934
Default
Sam I guess reading the whole sentence is fundamental. LOL
__________________
149,682,1641,1711 with a 12hp in it 1 8" brinly plow 1 10" brinly plow 451 snow blower,H-48 International snow thrower 42" york rake with fold down grader blade.
Reply With Quote
  #6  
Old 02-06-2014, 01:23 PM
Sam Mac's Avatar
Sam Mac Sam Mac is offline
Administrator
  
Join Date: Feb 2010
Location: Galax VA
Posts: 18,863
Default
Quote:
Originally Posted by cubs-n-bxrs View Post
Sam I guess reading the whole sentence is fundamental. LOL
I had to go back and re read it after your post. LOL
__________________
2264 with 54 GT deck
1641 AKA Black Jack with a 402-E Haban Sickle bar mower
JD317 dump truck
BX2670 with FEL
Reply With Quote
  #7  
Old 02-06-2014, 01:23 PM
J-Mech J-Mech is offline
Banned
  
Join Date: Apr 2013
Location: Oblong, Illinois
Posts: 17,594
Default
Quote:
Originally Posted by cubs-n-bxrs View Post
Sam I guess reading the whole sentence is fundamental. LOL
Don't feel bad Kelly, I do that all the time. Usually when the info is in the title of the post, but not in the body.
Reply With Quote
  #8  
Old 02-06-2014, 05:49 PM
ol'George's Avatar
ol'George ol'George is offline
Grand Member
  
Join Date: Oct 2009
Location: MI
Posts: 6,840
Default
With .020 clearance it will be slightly noisy.
.020 is really not all that much as some of the old chevy solid lifter engines ran as much as .030 with no ill effects.
The valves on those twins have no easy adjustment.
To decrease clearance you have to seat the valve deeper into the head, or replace the valve.
To increase the clearance, the valve stems need to be ground.
Best to run it till it needs to come apart for rings/overhaul.
Reply With Quote
  #9  
Old 02-06-2014, 06:28 PM
Sam Mac's Avatar
Sam Mac Sam Mac is offline
Administrator
  
Join Date: Feb 2010
Location: Galax VA
Posts: 18,863
Default
Quote:
Originally Posted by ol'George View Post
With .020 clearance it will be slightly noisy.
.020 is really not all that much as some of the old chevy solid lifter engines ran as much as .030 with no ill effects.
The valves on those twins have no easy adjustment.
To decrease clearance you have to seat the valve deeper into the head, or replace the valve.
To increase the clearance, the valve stems need to be ground.
Best to run it till it needs to come apart for rings/overhaul.
Sorry but I disagree, if it has that much clearance he should find out why rather than continue to run it and possibly have a more expensive failure.
__________________
2264 with 54 GT deck
1641 AKA Black Jack with a 402-E Haban Sickle bar mower
JD317 dump truck
BX2670 with FEL
Reply With Quote
  #10  
Old 02-06-2014, 07:15 PM
Thomas782 Thomas782 is offline
New Member
  
Join Date: Nov 2012
Location: MA
Posts: 9
Default
sorry gents just the facts : took engine out had cylinders bored new pistons and rings10 over. pistons and rings installed at that time had shop grind valves and re-seat them . my opinion is shop took off to much on this valve or stem . this is what prompted me to ask this question.so I guess the answer is to replace this particular valve. also shop did not have all parts at the same time as I took responsibility for install . does this engine end up being the cranky motor or do I replace the valve and have it closer to the tolerance. just ranting thomas
Reply With Quote
Reply
Page 1 of 2 1 2

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:15 AM.

www.onlycubcadets.net - Archive - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.

Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.

This website and forum are not affiliated with or sponsored by MTD Products Inc, which owns the CUB CADET trademarks. It is not an official MTD Products Inc, website, and MTD Products Inc, is not responsible for any of its content. The official MTD Products Inc, website can be found at: http://www.mtdproducts.com. The information and opinions expressed on this website are the responsibility of the website's owner and/or it's members, and do not represent the opinions of MTD Products Inc. IH, INTERNATIONAL HARVESTER are registered trademark of CNH America LLC

All material, images, and graphics from this site are the property of www.onlycubcadets.net. Any unauthorized use, reproductions, or duplications are prohibited unless solely expressed in writing.

Cub Cadet, Cub, Cadet, IH, MTD, Parts, Tractors, Tractor, International Harvester, Lawn, Garden, Lawn Mower, Kohler, garden tractor equipment, lawn garden tractors, antique garden tractors, garden tractor, PTO, parts, online, Original, 70, 71, 72, 73, 76, SO76, 80, 81, 86, 100, 102, 104, 105, 106, 107, 108,109, 122, 123, 124, 125, 126, 127, 128, 129, 147, 149, 169, 182, 282, 382, 482, 580, 582, 582 Special, 680, 682, 782, 782D, 784, 800, 805, 882, 982, 984, 986, 1000, 1015, 1100, 1105, 1110, 1200, 1250, 1282, 1450, 1512, 1604, 1605, 1606, 1610, 1615, 1620, 1650, 1710, 1711, 1712, 1806, 1810, 1811, 1812, 1912, 1914.