Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
portuncia

smoking at half throttle

Recommended Posts

portuncia
had some issues when I first got it but ever since been running with very little smoke, oh its an old cast iron B&S 12 hp. This weekend I got a new, to me, sickle bar going on it, having to run the attachment at half throttle I noticed a good bit of smoke. Is this an easy diagnosis when it smokes at half or reduced throttle. Any ideas? Thanks

Share this post


Link to post
Share on other sites
Brian313
I pulled apart a 12hp B&S last night that smoked under a load and above half throtttle. As bad as it was smoking thought sure broken or stuck rings, but after getting it apart the only thing wrong was the exhaust valve guide is worn out. It was full of oil all the way to the top of the valve. Getting an estimate tommorrow on cost to fix.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  

×