18 HP Briggs Flat Twin - Strange Sounds???
Posted March 22, 2011 - 10:35 PM
Posted March 22, 2011 - 11:12 PM
Posted March 22, 2011 - 11:31 PM
Posted March 23, 2011 - 03:28 PM
Posted March 23, 2011 - 03:50 PM
I fixed it last Sunday. The front motor mount bolt was loose, the missing back bolt was found in a bunch of grass inside the frame rail. My only guess is the belt pulled fine while running and when shut off it caused the motor to bounce.
Lock tite and tourqing the bolts have solved my problem.
Posted March 23, 2011 - 04:20 PM
JD DANNELS might have the answer there loose mount bolts.
When I do shut mine off just before it stops the whole mower shakes.
Posted March 23, 2011 - 06:49 PM
Posted June 07, 2011 - 01:31 AM
Posted June 07, 2011 - 08:52 AM
Forgot to let you know what the problem was. The crank gear keyway was worn as well as the pin (key) in the crank. This gave quite a bit of slop in the gear and shot off the timing when run at low rpms. There was also a little to much end play as well. Engine ran like a top after the fixes. Let's just hope it keeps going for it's owner.
Glad you got it figured out Jeff and thank you for posting the update