backfire

Reply

  #1  
Old 04-06-08, 01:30 PM
Member
Thread Starter
Join Date: Apr 2008
Posts: 2
backfire

poulan mower got on it .motor turns over sounds like it wants start.but when let go of key engine backfires and sheer's flywheel key. put new key done same thing again.any suggestions thanks--slodrive
 
Sponsored Links
  #2  
Old 04-06-08, 02:33 PM
Member
Join Date: Apr 2008
Location: U.S.
Posts: 16
Is the timing right? Pre detonation can cause this.
 
  #3  
Old 04-06-08, 10:14 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,818
It continues to shear the flywheel key? If so, I'd say the flywheel bolt isn't being tightened to proper torque. Also, do not allow oil or grease to contact the mating surfaces on the crankshaft and flywheel or it will shear the key again.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes