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      11-21-2012, 03:35 PM   #12
GAM
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Drives: 2011 E92 M3
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Quote:
Originally Posted by banky View Post
so im not really mechanically inclined, but im trying to visualize this. im sure the scrubbing is done from the top, but where does all the gunk sit? does it drip down or does it kinda just sit inside the valve port until you vacuum it with a wet dry vac? is there a chance of spraying too much cleaner and 'flooding' the motor, messing things up?

thanks for any help!

I'm sure the scrubbing is done from the top - Yes
But where does all the gunk sit? When you fill up the valves that are closed (usually 2 or 3 at a time (see DIY for more info) with Carb Cleaner, let it sit in there for 30min, then scrub for a few minutes, the carbon deposit will be mixed with the carb cleaner that will become all back and dirty. Then suck out the dirty carb cleaner with the vacuum.

Does it drip down or does it kinda just sit inside the valve port until you vacuum it with a wet dry vac? When the valves are closed, it is like sealed so nothing access the cylinder.

Is there a chance of spraying too much cleaner and 'flooding' the motor, messing things up? No because your valves are closed so it will hold the carb cleaner and then just suck it out. If you poor some carb cleaner in the cylinder because the valve is open it will be burnt when you fire up the engine. I am not sure of what the limit is tho (like how much can you poor without having a problem)

Hope that helps!
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