« previous next »
Pages: [1]   Go Down

Author Topic: Boring ?  (Read 3239 times)

0 Members and 1 Guest are viewing this topic.

Offline Mp350

  • Turf Warrior
  • **
  • Posts: 112
  • Karma: 0
  • Gender: Male
    • View Profile
Boring ?
« on: August 07, 2007, 05:06:00 pm »
Getting ready to send my motor out to be bored for the 31 piston, what size gap is best for the piston to cylinder wall clearance? Thanks
Logged
Mark Tucciarone, Lake Placid Fl

Offline redline

  • # I BROKE IT
  • Mow-Forum Junkie
  • ***
  • Posts: 2342
  • Karma: 24
  • Gender: Male
    • View Profile
Re: Boring ?
« Reply #1 on: August 07, 2007, 08:35:40 pm »
Is it a cast iron bore or aluminum? It may make a difference due to the metals expanding at different rates from heat.
Logged
Ed King

71.3% of the time, I'm right every time.

/>http://www.youtube.com/user/tawdew



Offline Mp350

  • Turf Warrior
  • **
  • Posts: 112
  • Karma: 0
  • Gender: Male
    • View Profile
Re: Boring ?
« Reply #2 on: August 08, 2007, 06:42:48 pm »
It's a 14 hp vanguard single, which has an iron sleeve in it. Doesn't the machine shop just bore out an fit a new iron sleeve to fit the 31 piston?
Logged
Mark Tucciarone, Lake Placid Fl

Offline amcchevy1

  • Mow-Forum Junkie
  • ***
  • Posts: 1124
  • Karma: 2
  • Gender: Male
    • View Profile
Re: Boring ?
« Reply #3 on: August 08, 2007, 11:09:42 pm »
i send my piston and rings with the block when i get it bored. briggs recommends about .012 end gap or about .004 overbore.
Logged
2007, 2008 amra member.  modified flathead
2008-2010 arma member.  sportsman
If you build it, it should fly.
take it out and let it eat...
www.GoLawnMowerRacing.com
www.alleghanymowerracingassociation.com

Offline Mp350

  • Turf Warrior
  • **
  • Posts: 112
  • Karma: 0
  • Gender: Male
    • View Profile
Re: Boring ?
« Reply #4 on: August 09, 2007, 05:17:49 pm »
Thanks ,thats the info I was looking for.
Logged
Mark Tucciarone, Lake Placid Fl
Pages: [1]   Go Up
« previous next »
 

anything