flooded engine cylinders

[bcredliner]

Originally Posted by upallnight

Only a few cylinders will have a valve open, so essentially, the other cylinders will be closed tight so the gasoline will have nowhere to evaporate. That's is why the gasoline in your tank don't evaporate overnight.

If an engine was like a gas tank there would still be compression in those cylinders with closed valves the next day. Also, it doesn't take much of a flooded condition to wash the oil film off the cylinder walls to the point they don't seal. Cylinders are not airtight.

[upallnight]

Originally Posted by bcredliner

If an engine was like a gas tank there would still be compression in those cylinders with closed valves the next day. Also, it doesn't take much of a flooded condition to wash the oil film off the cylinder walls to the point they don't seal. Cylinders are not airtight.

Air is always compressible, a liquid is not.

If there is enough gas to wash down the cylinders, the cylinders and plugs are wet and like my dad told me, you are not going to start an engine with wet plugs.

Here's a thread on a guy who couldn't believe his engine was flooded. He tried for several days to get the engine started. Finally gave up and had the car towed to a shop. When the mechanic worked on the car he found the plugs dripping wet. The mechanic dried the plugs and ventilated the cylinders expelling any gas still remaining in the cylinders. Put the plugs back in and the engine started right up.

https://www.bimmerforums.com/forum/s...0#post25719750