Only Cub Cadets

PLEASE PATRONIZE OUR SPONSORS!

CC Speciaalties R. F. Houtz and Sons

Patton Acres IH Cub Cadet Parts

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

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 05-15-2018, 10:33 PM
machinehead323 machinehead323 is offline
Senior Member
 
Join Date: Apr 2012
Location: Texas
Posts: 194
Default K341 cam and head replacement

I rebuilt my K341 93 hours ago. While mowing this last time it seemed sluggish while mowing and i started tweaking the carb. Well I shut it off and it never started again. I checked the timing and it was all wonky with the marks. Long story short the engine is out now. The head gasket is toast, several of the bolts were loose. There was nothing blocking airflow. The flywheel key was sheared. I’m pretty sure I put antiseze on the tapered surface fore ease of removal. Obviously didn't read that part in the manual. It had been starting hard for a little while now. So I checked the ACR and it was at .023 instead of the .031-.041 I knew the tab on my cam was the hardened unadjustable type but I tried anyway. Well it snapped so I am getting an older cam that is adjustable. Now for a couple questions

I don’t know if I trust the head bolts. Is it ok to use the same size grade 8 bolts with the thick washers? I will be lapping the head on a surface plate. I hear some people using sealers on the gasket. Any truth to that? After torqueing it down and I get it started again what is the best run in/retorque procedure?

I know I have to take the crank out to get the cam out. Can I just get the piston at TDC and remove the endcap and be able to get the crank out? I would rather not remove the piston and rod if I don’t have to. Can I leave the valves in and be able to get the cam out? Or should I go ahead and pull the valves while I’m at it and relap them. I had the seats redone and new valves only 93 hrs ago.

Retorquing the rod cap scares me. IDK why I just have fears of it coming loose. The manual calls for oil on the threads and 200in lbs for used posi-lock nuts. Is that all there is to it? No locktite or anything?

I think that is all the questions for now.
__________________
1979 1650, #1 tiller with one extension, 90 degree box mounted, 3 point. 1961 4 digit bringing back to life. I have the mower and 3 pint for it. The 1650 is the fastest mower in the neighborhood.
Reply With Quote
  #2  
Old 05-15-2018, 11:01 PM
olds45512's Avatar
olds45512 olds45512 is offline
Grand Member
 
Join Date: May 2014
Location: Indiana, PA
Posts: 8,290
Default

Yes you can roll the engine to tdc and remove the crank. Yes you can leave the valves in and remove the cam.
__________________
Tim
Pap's 100
Restored 108
1211 Dual Stick
1050
Pap's 100 restoration thread - http://onlycubcadets.net/forum/showthread.php?t=47965
Reply With Quote
  #3  
Old 05-15-2018, 11:05 PM
J-Mech J-Mech is offline
Banned
 
Join Date: Apr 2013
Location: Oblong, Illinois
Posts: 17,594
Default

Sounds to me like you didn't tighten the flywheel nut/bolt, or retorque the head after run in. Better read the manual this time around.

I put anti-seize on the crank for the flywheel. Never had a one come loose.

None of the ACR tabs were "adjustable". Some are harder than others. Don't bet the cam you are getting can be "adjusted".
Reply With Quote
  #4  
Old 05-15-2018, 11:23 PM
machinehead323 machinehead323 is offline
Senior Member
 
Join Date: Apr 2012
Location: Texas
Posts: 194
Default

i have at the pdf of the kohler manual that i consulted. as well as the IH manuals. its been 5 years ago so dont remember the details exactly i do remember taking the tins, as well as my fuel tank off to retorque the head. I'm a machinist so I'm pretty anal about torque values and measurements. i do know i only retorqued it once though. the flywheel IDK what happened. they surfaces have been lapped together know to get rid of any galling so they are ready to get back together. adjustable may be the wrong word. the manual says that prior to 9006118 the ACR can be checked and readjusted. figured i would have a better chance with that than mine which was above that range.
__________________
1979 1650, #1 tiller with one extension, 90 degree box mounted, 3 point. 1961 4 digit bringing back to life. I have the mower and 3 pint for it. The 1650 is the fastest mower in the neighborhood.
Reply With Quote
  #5  
Old 05-17-2018, 08:05 AM
dvogtvpe's Avatar
dvogtvpe dvogtvpe is offline
Grand Member
 
Join Date: Oct 2011
Location: Campbellsport Wisconsin
Posts: 1,585
Default

None of the ACR tabs were "adjustable". Some are harder than others. Don't bet the cam you are getting can be "adjusted".[/QUOTE]

I have an older manual from the late 70's that talks about the tabs and that you can adjust them . and it does state the hardend ones shouldn't be adjusted for fear of breaking. I haven't broken one yet , must just be lucky but I figure what to heck, if you have to change the cam out its worth a try.

as for flywheel tapers, I like to put them on dry, the taper is what holds the wheel to the crank , not the key. the key just times the wheel to the crank so you can use the timing mark. in a good stocker motor that puts out 30 ft lbs of torque I locktite the flywheel onto the taper.
__________________
scan in the QR code (upper left) or text IHCC to 51660 to follow which shows and pulls we will be attending.
Reply With Quote
  #6  
Old 05-17-2018, 08:58 AM
twoton twoton is offline
Grand Member
 
Join Date: Feb 2015
Location: MA
Posts: 2,532
Default

...... I locktite the flywheel onto the taper.[/QUOTE]

Blue or red?
Reply With Quote
  #7  
Old 05-17-2018, 09:26 AM
J-Mech J-Mech is offline
Banned
 
Join Date: Apr 2013
Location: Oblong, Illinois
Posts: 17,594
Default

Quote:
Originally Posted by twoton View Post
...... I locktite the flywheel onto the taper.

Blue or red?
You planning to build a motor that makes 30ft lbs torque?
Reply With Quote
  #8  
Old 05-17-2018, 09:42 AM
twoton twoton is offline
Grand Member
 
Join Date: Feb 2015
Location: MA
Posts: 2,532
Default

Bahahaha! Yeah John. In my spare time.

Just curious...

Not using never seize tho...
Reply With Quote
  #9  
Old 05-17-2018, 05:25 PM
dvogtvpe's Avatar
dvogtvpe dvogtvpe is offline
Grand Member
 
Join Date: Oct 2011
Location: Campbellsport Wisconsin
Posts: 1,585
Default

red. if you use it be warned. they don't come off easy
__________________
scan in the QR code (upper left) or text IHCC to 51660 to follow which shows and pulls we will be attending.
Reply With Quote
  #10  
Old 05-17-2018, 06:23 PM
twoton twoton is offline
Grand Member
 
Join Date: Feb 2015
Location: MA
Posts: 2,532
Default

Quote:
Originally Posted by dvogtvpe View Post
..... be warned....
Thank you.
Reply With Quote
Reply

Thread Tools
Display Modes

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 10:31 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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.