Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Kohler V-twin Head Removal

    I have to remove heads on my Kohler Command V-twin due to blown head gasket... but if any one has done it.... can it be done WITHOUT
    removing read fan shroud ?
    I think so.... but not sure ... I have not started job yet.
    Thanks .
    Pete

  2. #2
    Super Member
    Join Date
    Dec 2003
    Posts
    6,286
    Location
    NC
    Tractor
    Kubota Grand L3830

    Default Re: Kohler V-twin Head Removal

    Head shrouding has to be removed. Kohler has a funny head gasket replacement procedure. They recommend torquing the head bolts with the valve push rods from underneath the rocker arms. They also recommed tightening the rocker arms down without the push rods installed under the rocker arm and in the lifter. You need a wire loop on a screw driver to cycle the rocker arm up and down to slide the push rods in after everything is tighten down. Make sure and spin the engine to get the piston to retract on the cylinder you are working on to give the valve room to open fully when installing the push rods. If you have downloaded the manual from the Kohler site the procedure is described in detail in the manual.

    Most people also install new head bolts when replacing the gasket.

  3. #3
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Re: Kohler V-twin Head Removal

    I will try to get cylinder on TDC compression ... so
    valves will both be closed.
    Kohler gasket kit comes with new head bolts.... pretty cool.

  4. #4
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Re: Kohler V-twin Head Removal

    Had I actually looked in the Kohler box for new gasket kit....
    I would have seen that Kohler provided installation instructions....
    step by step.... very good actually.... this won't be such a tough job after all.
    Biggest time consumer is cleaning everything..... ugggh......

  5. #5
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Re: Kohler V-twin Head Removal

    Just an update.... rear shroud DOES have to be removed.... in order to remove intake manifold.... argh.... this is turning into a bigger job than originally
    thought.... and the old grass debris found under the head shrouds was unreal !
    Coupled with it being oil soaked from the leaky head gasket...man... what a mess... the cleaning alone will take hours !
    So much for my afternoon job.... : (
    This one will take me several days of working on it a little at a time..
    Will keep you posted on progress / problems...

  6. #6
    Platinum Member
    Join Date
    Mar 2008
    Posts
    703

    Default Re: Kohler V-twin Head Removal

    that grass crapped up under the cooling shrouds could have heat-damaged yer engine - keep yer eyes open for such..

  7. #7
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Re: Kohler V-twin Head Removal

    I am afraid you might be right.... when I pulled the starter motor...
    there was sludge built up in the rear shraud that looked like a gooy
    paste.... I am afraid oil got in there through a worn rear seal.... so I really should replace that at this time....
    Anyone know if that can be done with engine IN frame.....
    gosh this project is going deeper and deeper.

  8. #8
    Super Member
    Join Date
    Dec 2003
    Posts
    6,286
    Location
    NC
    Tractor
    Kubota Grand L3830

    Default Re: Kohler V-twin Head Removal

    Sorry to be the bearer of bad news. No the rear seal cannot be replaced without disconnecting the drive shaft and then slipping the engine forward and removing the flywheel. From what you described I would obtain a couple of cans of engine degreaser, strip the shrouding and clean the engine real good prior to starting repairs. Be careful when removing the large fly wheel to gain access to the leaking rear seal. Do not tap on the flywheel with a hammer. You could damage the ceramics on the inside of the flywheel. Please use a puller to remove the flywheel. Be careful when removing the old seal. Do not damage the seal seat area. Also make a mental note of how deep the old seal is inserted. Try to install the new seal near the same depth. Take your time on the repair. Do not hurry and you will enjoy many more years of service.

    I forgot to add. I am quite sure you will have to remove the stator to gain access to the rear seal after you remove the flywheel.

  9. #9
    Silver Member
    Join Date
    Jun 2010
    Posts
    236
    Tractor
    Cub Cadet 3000

    Default Re: Kohler V-twin Head Removal

    Oh Man.... that's what I was afraid of..... the ONLY way
    I can get lucky at this point now is if the oil entered that area, by trickling down from head gasket.... but I think that is wishful thinking....
    what say you ?
    And yes you are correct... I will have to carefully clean gunk off engine
    before starting to pull heads , and rear section...
    ... I bought this used a year ago, and it was apparent that it had
    been abused.... but must move forward , and fix all correctly.
    Thanks for your input.

  10. #10
    Super Member
    Join Date
    Dec 2003
    Posts
    6,286
    Location
    NC
    Tractor
    Kubota Grand L3830

    Default Re: Kohler V-twin Head Removal

    If it was me I would remove the engine. Remove the shrouding and soak with engine gunk. Wash the engine good and then start the repairs. Some engines are so crud covered they must be soaked in kerosene for a couple of days to get the gunk to turn loose. I would also replace the front and rear crankshaft seals. I would obtain a set of rings and run a glaze buster down the bores. The pistons, rods and caps are numbered if you decide to replace the rings. Keeps everything together for the cylinder you removed it from. Also be careful when removing the front of the engine. The governor will fall out. The front of the engine uses a light coating of RTV for a gasket. It is a machine fit so don't be prying or scratching on the surface.

Page 1 of 2 12 LastLast

Similar Threads

  1. Head gasket replacement on my Kama TS354C
    By zogman in forum Chinese Tractors
    Replies: 12
    Last Post: 07-18-2011, 02:46 PM
  2. Stihl trimmer head
    By lizardman in forum Garden Tools
    Replies: 22
    Last Post: 06-09-2011, 09:52 PM
  3. Impala head gasket blown
    By fishman in forum Related Topics
    Replies: 13
    Last Post: 05-02-2011, 07:10 PM
  4. Replies: 4
    Last Post: 08-30-2007, 03:56 PM
  5. Buying Advice YM1110D (2T72) Head - need advice!
    By gbirky in forum Yanmar
    Replies: 18
    Last Post: 04-15-2003, 12:18 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.