Briggs & Stratton engine and deck hole mounting repair question

Reply

  #1  
Old 04-11-17, 11:31 AM
Member
Thread Starter
Join Date: Nov 2006
Location: US
Posts: 370
Briggs & Stratton engine and deck hole mounting repair question

With the decks of gas push mower being made so thin nowadays I've found the 3-hole mounting holes on the decks just breaking after only a few years - or less if you happen to hit something with the mower.
Anyway, I wondered if the mounting holes for Briggs & Stratton engines were standard spacing dimensions between different engine sizes, such as between 3hp-6.75hp
I've always suspected that they are and it would make sense to use the lower engine assembly for multiple-hp sized engines.

My question though is about repairing the deck frames when the engine mounting bolts tear the sheet metal holes out where they fasten to the deck.
I wondered if anyone ever found any kind of flat metal ring that matched the 7inch diameter hole for mounting B&S engines that would only require that you accurately mark & drill out 3/8inch engine bolt holes.
Thanks,
greynold99
 
Sponsored Links
  #2  
Old 04-11-17, 11:52 AM
Member
Join Date: Jan 2010
Location: North East Kingdom of Vermont
Posts: 2,411
I can't answer your question about the flat reinforcing ring that you'd like to find . . . . I've always used large fender washers to reinforce these fragile sheet metal holes on walk-behinds. Do you have a local Blacksmith who could fabricate one (as a prototype) for you ?

What I can say is that most B&S and Tecumseh Engines usually share bolt patterns. I've got a 1973 AMF Rider that began life with me powered by a 8 HP Briggs which blew up; was then brought back to life with a 10 HP Tecumseh; and was recently resusitated with a 13.5 HP Briggs and Stratton . . . . always using the same bolts holes for mounting the engines.

But 1973 was a year when they used heavier gauge metal for the chassis; so I haven't ever felt compelled to reinforce that metal. Now they're not much thicker than a beer can.
 
  #3  
Old 04-12-17, 12:12 AM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,821
Most all of them have the same mounting pattern. Some decks did have a heavy ring around the mounting area to reinforce it but I don't think I've seen it in a while. Normally when I see one cracked in that area, it's because it has been vibrating due to a bent or unbalanced blade and/or a bent crankshaft.
 
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