My countax ride on is powered by a Briggs & Stratton horizontal 16hp engine. The engine runs fine with plenty of power, a bit noisy due to the rubbish silencer, but the problem is, almost as soon as I shut it down to tickover, it smokes like a wet bonfire until I can barely see the other side of the lawn. The smoke is a blue-ish oil smoke rather than a black fuel smoke. I don't really want to strip the entire engine if there could be a simple explanation such as valve stem seals or something similar.I can't see it being rings or anything that serious because it runs so well without smoke when the power is on.
Can anyone shed any light on this problem & save me some work.
Model 280777, type 0646 A1.
Greatfully yours, Steve.

Stephen G, March 2009

blown headgasket is presureising sump blowing oil through breather into carby .

mopoke, April 2011

Thankyou e park mowers, I took the lid off & sure enough the gasket had blown between the pot & the push rod chamber. Nice to find a definite fault.
Thanks once again, Steve.

Stephen G, March 2009

Hi, cannot trace model 280777, but if it is single cylinder overhead valve type the symptons suggest blown head gasket - fairly common occurence on these engines.

e park mowers, March 2009