(Greg) wrote:
Steveo wrote in message
...
(Greg) wrote:
I have a 2 years, 2 months old Briggs and Stratton 14hp engine on a
Troy-Bilt 42" chassis. It just ran out of warranty 2 months ago. When
I first got the mower it would backfire every now and then. Last
summer it would blow a puff of smoke when I started the engine.

Today, the engine would rev very high until I engaged the blades,
then it would resume normal rev speed. I checked a few things, and
noticed a rubber hose that attached to the carb from the engine had
came lose from the carb. I placed it back on, added oil (as I always
do when it's needed), and mowed the grass. When I finished, I turned
the mower off and restarted to see if the high revs woul dhappen
again. When I did, a large amount of oil blew out the rubber hose I
had reconnected.

I'm afraid this may not be good news. This engine has been well cared
for - regular oil and filter changes, etc. I had a similar problem
with another B&G engine a few years ago. I will not be buying another
mower with a Briggs engine mounted in it.

Anyhow, obviously, I need to fix this 2 year old mower. Before I tear
down the engine, anyone want to suggest the problem based on the
symptoms? Thanks.

Does the oil smell like gas?

Yes, a little, but doesn't most used oil have a gas smell? What's you
analysis if it does have a gas smell?

It might be the carb.

http://www.small-engines.com/gasleak.html

--
And it's twice as hard on my stride
When I take a day and let it ride. - Paul Cotton.