help w/Briggs 16hp on Toro
 

It's a 1-jug 16hp verticle shaft on a Wheelhorse. Blew white smoke twice,
sputtered and then kept running normal. Now chokes black smoke and fouling
the plug. A mechanic said something about a seal accessible from the
bottom, so I pulled the engine and saw no sign of leaking on the shaft seal,
and the oil pump/filter O-ring looks good.

Any ideas? I've good compression and the carb appears to work fine. This
came on suddenly.




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Dandelion Acres wrote:

It's a 1-jug 16hp verticle shaft on a Wheelhorse. Blew white smoke twice,
sputtered and then kept running normal. Now chokes black smoke and fouling
the plug. A mechanic said something about a seal accessible from the
bottom, so I pulled the engine and saw no sign of leaking on the shaft
seal, and the oil pump/filter O-ring looks good.

Any ideas? I've good compression and the carb appears to work fine. This
came on suddenly.




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Bad Gas? Maybe?

"Dandelion Acres" wrote in message ...
It's a 1-jug 16hp verticle shaft on a Wheelhorse. Blew white smoke twice,
sputtered and then kept running normal. Now chokes black smoke and fouling
the plug. A mechanic said something about a seal accessible from the
bottom, so I pulled the engine and saw no sign of leaking on the shaft seal,
and the oil pump/filter O-ring looks good.

Any ideas? I've good compression and the carb appears to work fine. This
came on suddenly.




check the intake valve adjustment.

I'm guessing the white smoke would be unburned fuel? It billowed pretty good
out of the exhaust for about 15 seconds, then smoothed out. The machine was
on a side hill of slight degree. This happened twice only.

The black/carbon smoke is consistant now, as if the rings were shot and oil
was leaking. But the compression is about 75, pretty good. I've not yet
pulled the jug, would like to t-shoot it a little more definitively first.

?????

"Chip Stein" wrote in message
m...
"Dandelion Acres" wrote in message
...
It's a 1-jug 16hp verticle shaft on a Wheelhorse. Blew white smoke
twice,
sputtered and then kept running normal. Now chokes black smoke and
fouling
the plug. A mechanic said something about a seal accessible from the
bottom, so I pulled the engine and saw no sign of leaking on the shaft
seal,
and the oil pump/filter O-ring looks good.

Any ideas? I've good compression and the carb appears to work fine.
This
came on suddenly.




check the intake valve adjustment.




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"Dandelion Acres" wrote in message ...
I'm guessing the white smoke would be unburned fuel? It billowed pretty good
out of the exhaust for about 15 seconds, then smoothed out. The machine was
on a side hill of slight degree. This happened twice only.

The black/carbon smoke is consistant now, as if the rings were shot and oil
was leaking. But the compression is about 75, pretty good. I've not yet
pulled the jug, would like to t-shoot it a little more definitively first.



white smoke is oil, black smoke is fuel. check the intake valve
clearance.
compression readings aren't even published by briggs due to the
compression release. but 75 is good, it'll be quite a bit higher when
running.
Chip

I found it. A small hole had developed in the head gasket along side the
gallery that the push rods pass. Easy fix.

Thanks for the input.

"Dandelion Acres" wrote in message
...
It's a 1-jug 16hp verticle shaft on a Wheelhorse. Blew white smoke twice,
sputtered and then kept running normal. Now chokes black smoke and fouling
the plug. A mechanic said something about a seal accessible from the
bottom, so I pulled the engine and saw no sign of leaking on the shaft
seal,
and the oil pump/filter O-ring looks good.

Any ideas? I've good compression and the carb appears to work fine. This
came on suddenly.




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