Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
Paul_B

Overheating 16HP B&S Vertical Twin

Recommended Posts

Paul_B
I've got a 16HP B&S twin I just got running again. It got a valve job and a few other things. The motor ran with the high speed mixture screw out about 4-5 turns, but not as good as I thought it should. After running for a short time it over heats. Am I seeing a lean condition or is this an ignition timing problem? All the "tins" are on the motor for cooling.

Share this post


Link to post
Share on other sites
Al
Hi, These things generate quite a bit of heat. If it is overheating, The flywheel key could be slightly sheared causing late timing, you could have a lean mixture from an external leak into the manifold or plugged passage in the carb. Seems to me like 5 turns is a lot, I would expect it to be around 2 1/2 give or take 5 turns should make it very rich. Also check the float height. My thoughts, they are free, value accordingly. Al Eden

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  

  • Who's Online (See full list)

    • Clarsmn
    • cawfy1
    • timmangan
    • CarlH
    • s_stephen
    • rokon2813
  • Today's Birthdays

    1. 720nut
      720nut
      (66 years old)
    2. Joe Scann
      Joe Scann
      (79 years old)
  • Recent Status Updates

    • Paul M.Murphy

      Paul M.Murphy

      Hello glad I got on this site. I hope to upload a couple of photos of my Simplicity Broadmoor 
      Model 707 Tractor. I have replaced all the belts on it and installed a new ignition switch.
      Have a mower deck which was in poor shape , repaced a couple of bushings and welded the
      deck where there was some holes. The tractor and mower deck came from a friend and the 
      mower deck metal was getting pretty thin. Some new metal was put in it and we also undercoated the underside of the deck. This was done by my friend Greg Toulman.
      I have not put the mower deck on the tractor yet, waiting for Greg to come home and give me a hand. Can you please tell me if there is a manual for the mower deck and where I could get one.
      I would also like to get some moon wheel discs as well.
      I will try and down load some photos of the tractor when my wife shows me how to. 
      I really love driving this tractor and also how well it is made compare today's tractors, especially the flexible rear end and the rollers.
      Tell the next time 
      Paul
       
      · 9 replies
    • jbrooks

      jbrooks  »  Talntedmrgreen

      Josh
       
      folowing  this from a link at the downloads.  I just rescued an AC 920 with the lambodini diesel. I can' t download  yet .  Where did you find the PDF copy you posted. . I would like to figure out how to adjust the injection pump. 
      I assume it's a bosche, correct
      · 0 replies
  • Adverts

×