I have a Briggs and Stratton 15.5hp engine on my mower giving me some problems.
Oil leaks into the carburettor and causes the engine to smoke and stop working.
I thought the problem was the oil breather and replaced the part but still the same, so I checked the compression thinking of faulty rings but the compression is good. I also checked the seal around the dipstick only to find that ok.
Could anyone advise me what could be causing the problem
#2
pugaltitude
More than likely the head gasket is blown between cylinder and valve chest.
pressure from the cylinder will push oil up into air filter through the breather .
Would that not give me a loss of compression as I have tested the engine with a compession tester and have had a good reading ?
#4
pugaltitude
Briggs dont give compression readings as they cant give it as an accurate reading.
If there was a good reading it would rule out rings.
A compression test would not always show head gasket only that compression was down on that cylinder. You would then have to decide what part had failed.
Going by experience i would say head gasket.
