Return to the Lawn Mowers Forum | Post a Follow-Up

 o
Briggs and Stratton 42A707 will not start

Posted by dbrock84 (My Page) on
Fri, Apr 16, 10 at 18:44

Let me start from the beginning. I have a 18.5 hp B&S engine model 42a707. It was leaking oil onto the drive belt from the sump gasket. Removed the engine and replaced the sump gasket. After mounting on the chassis I tried to start the mower and it will not start. I have spark, I am getting fuel to the carb. Engine cranks just fine have gotten a pop or 2 from the engine but just doesn't want to start. Doesn't even sound close to starting.


Follow-Up Postings:

 o
RE: Briggs and Stratton 42A707 will not start

You have evidently gotten the timing gear out of time! Easy to do when reassembling after opening the case.
I use a piece of masking tape, or heavy thick wheel-bearing grease to hold the cam in place, then carefully lower the sump into position!


 o
RE: Briggs and Stratton 42A707 will not start

Thank you. The timing was out


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Lawn Mowers Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here