Subject: Bent crankshaft
From: "Dave Liquorice"
Date: 12/07/03 15:19 GMT Daylight Time
Message-id:

Damn 'n blast. Hit one of the larger rocks (bed rock...) in the "lawn"
with the blade of the rotary mower the other week. Sheared the
locating pins on the diecast boss, neat I though saves the engine.

Got a new boss and blade and fitted them, started it up and boy is
there a lot of vibration. Check the new blade for balance OK. Dreaded
thought output shaft bent, mower up on blocks, engine started. Oh
dear... there is the shaft wobbling nicely by about 3/16". The B&S
10D900 series engine is "lumpy" and hunts but then it has no load,
with the blade fitted and a short run of mowing it didn't seem to bad
considering the vibration...

What does the panel think are the chances of:

a) Straighting the shaft in stitue.

Nil

b) Other engine damage.

Possibly to the crank bearing but you'll find out anyway when you strip it.


Dave Baker - Puma Race Engines (www.pumaracing.co.uk)
You find somebody to love in this world you'd better hang on tooth and nail -
the wolf is always at the door. (Don Henley - In A New York Minute)