Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  

Valve lash on Briggs model 19.

Recommended Posts

Ray, (or anybody) I am getting a reading of 22 thou on the exhaust and 10 thou lash on the intake. I do not know the spec's on these. Do you know off hand? Thank you, Gene.

Share this post

Link to post
Share on other sites
Gene, Those numbers will work. I use 8 and 18 thou. on all mine. You should be fine with 10 and 21. Might get a little tick, but won't hurt a thing. A little work with a valve lapping cup and some fine lapping compound will bring you into spec. You would need to remove the keepers and springs to do that. That can be a daunting task if you don't have the correct tools. I.E. A spring compresser and pencil magnet. I use a flat screwdriver with a dab of sticky grease to reinstall the keepers. A tiny piece of rag to plug the drain hole is also a good thing. The keepers can be fished out of the oil pan with said pencil magnet. Ask me how I know.C Good luck, Jim

Share this post

Link to post
Share on other sites
Sorry the I kept pushing the valves. On the ones I worked on, I found zero clearance on one of the valves. The only other two things I can think of is either a bad coil, or a fuel flow problem. Be sure to check your fuel line. On an auto, I had a flap of rubber come loose inside a fuel line. It would run for a while then shut off as the flow pushed the flap across the inside of the hose. When the engine was shut off, the flap would go back to the side of the hose and then the engine would start up and run again. I spent weeks trying to find that one. Good luck.

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)

    There are no registered users currently online

  • Today's Birthdays

    1. davidmoll
      (61 years old)
    2. Mikethemasher
      (50 years old)
  • Recent Status Updates

    • SonOfCreepfeed


      Thinkin' about this old girl.

      · 1 reply
    • 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