Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
JJ MARSHALL

17 hp B&S

Recommended Posts

JJ MARSHALL

I have a 17hp B&S ohv single cyl motor

went trying to start it it blown gas back out of the carb

motor has not been run in a while

valves are opening and closeing ok any idea what could this?

thanks. JJ

compression on motor is 120

JJ

Share this post


Link to post
Share on other sites
Brettw

If it is blowing gas back out of the carb, the intake valve can't be closing properly, or somehow the camshaft timing is off. The last time I saw an engine spitting gas back out of the carb, a small capscrew from the air cleaner mounting plate had gotten ingested into the intake and was lodged between the valve and cylinder head. The valve did move, but did not close and seat.

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

Sign in to follow this  

  • Who's Online (See full list)

    • dayardguy
    • Brettw
    • Sovereignm88
  • Today's Birthdays

    1. Big 10
      Big 10
      (71 years old)
    2. cowfan
      cowfan
      (51 years old)
    3. dynodave
      dynodave
      (71 years old)
    4. WaylandLegacy
      WaylandLegacy
      (44 years old)
  • Recent Status Updates

    • SonOfCreepfeed

      SonOfCreepfeed

      Thinkin' about this old girl.

      · 2 replies
    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁
       

      · 1 reply
  • Adverts

×