Outdoor Power Equipment and Small Engines - B & S 11HP Synchro Balance

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hannibal
02-08-08, 08:49 PM
Hi, new here, have a really dumb question.. I took apart my snow blower engine to find source of Knock ,
How do you "time " the synchro balance shafts to the crank shaft?
this is model; 252416

thanks in advance

hannibal
02-09-08, 04:36 AM
so pardon the confusion,, if you 'time' the cam and the crank gears, then instal the PTO cover with the balance gears 'hanging' then you have it assembled correctly?
31YTech
02-09-08, 05:12 AM
hannibal,

There is a process for timing these balance gears that MUST be followed.

I have to get to work at this moment but will post the proper timing procedure later today if nobody else does.

31YTech
02-09-08, 02:38 PM
http://i107.photobucket.com/albums/m314/Restrorob/Briggs/Briggs252400BalGearTiming.jpg

I use the shank of a couple of drill bits for locating pins.

Good Luck http://forums.vr-zone.com/images/smilies/biggthumpup1.gif
hannibal
02-09-08, 03:07 PM
THANK YOU!! exactly what I was looking for :)
cheese
02-09-08, 05:13 PM
Uh-oh....I goofed...:(

Instead of going by the model#, I assumed you were talking about a 11hp vertical engine. Thank you 31YTech for catching this!

I editied my first reply to avoid future confusion.
31YTech
02-09-08, 06:22 PM
No problem cheese.....http://forums.vr-zone.com/images/smilies/biggthumpup1.gif
Legal v8
02-10-08, 08:02 AM
A little off-topic, but I have never seen a single cyl engine with counterweights.. Why is this? What's the purpose?
CAMINO KID
02-10-08, 08:58 AM
A little off-topic, but I have never seen a single cyl engine with counterweights.. Why is this? What's the purpose?

There are balance counterweights in Kohler and Briggs engines. They have been used for years to help remove the vibration of a single cylinder. I believe Kohler used them about the earliest of the manufacturers. Radio just reported a wind chill of -51 here today. No shop work, too cold.