Jump to content
Bill D

13 Fin K321S?

By Bill D, in Engines

Recommended Posts

Bill D    2,233

Bill D
Posted

Hi,

 

I have a K321S, Spec # 60424, S/N 14169017.  I was counting the cooling fins on the rear of the engine and noticed that it has 13 fins.  I read somewhere that 13 fin blocks were more sought after thatn 12 fin blocks.  If so, why?  Also is it possible to have a 13 fin K321, or did someone possibly change the cover in the past?  Also is it possble to tell is this engine has balance gears from the numbers?  I have read that some engines did not have them.  Thanks 

Share this post

Link to post
Share on other sites
 

richmondred01    2,303

richmondred01
Posted

13 fin provided a bit better cooling.

as for the balance gears you can take a peak by removing your oil filler tube and with a optical light look in and see. Can’t tell you with just a spec number. Some do and some dont. 

Share this post

Link to post
Share on other sites
 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Go To Topic Listing

  • Similar Content

    • Gravely Horse
      Kohler valve train kit
      By Gravely Horse
      I’ve got a 520xi with a ch20 kohler. It has 982 hours. It runs fine, but after seeing this valve train kit on eBay, I was wondering if there is any harm or need to throw one in it. Any one have insight into this? 

    • CasualObserver
      Engine Kohler Two Stroke K399-2 K440-2 K618-2 OM pdf
      By CasualObserver
      Owners manual for the two cylinder snowmobile engines.
      12 pages 1.38MB
       
      1970 399 Safari snowmobile model 9-0041 - 2-cylinder
      1970 440 Safari snowmobile model 9-0051 - 2-cylinder
       
      1972 399 15" Safari snowmobile model 9-0042 - 2-cylinder
      1972 399W 22" Safari snowmobile model 9-0310 - 2-cylinder
    • CasualObserver
      Engine Kohler Two Stroke K295-1 K309-1 K335-1
      By CasualObserver
      Owners manual for the Single cylinder snowmobile engines.
      12 pages 1.33MB
       
      1970 295 Safari snowmobile model 9-0011 - 1-cylinder
      1970 309 Safari snowmobile model 9-0021 - 1-cylinder
      1970 309W Safari snowmobile model 9-0061 - 1-cylinder
      1970 355 Safari snowmobile model 9-0031 - 1-cylinder
       
      1972 335 15" Safari snowmobile model 9-0032 - 1-cylinder
    • Jeff-C175
      Engine Kohler K301 Selection Guide
      By Jeff-C175
    • Jennifer
      4hp Kohler k91 issues!
      By Jennifer
      Husband wants some advice… lol.  So we did an engine swap today on two suburbans because we could not get the one engine to spark all the time to get it running!  The engine ran last year before parking for the winter sleep…. Points were changed out for new the engine was cleaned to make good contact has new spark plug new coil condenser we even switched out the fly wheel today thinking maybe the magnet was weak…. Advice???   It would where are you out yanking on the recoil five or so times and maybe only get the points to fire twice if you’re lucky..  checked the gap and pull again… same thing over and over!  Thanks in advance!
×
×
  • Create New...