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Topic Re: Sigh. I'm sorry but no way a bit more than a quart of 15w-50 oil is going to make any... |
Update on my oil consumption issue Bruce In Philly (2000 S Boxster, now '09 C2S) - Friday, 23 March, 2012, at 6:47:59 pm |
Sigh. I'm sorry but no way a bit more than a quart of 15w-50 oil is going to make any... MarcW - Friday, 23 March, 2012, at 9:08:39 pm |
Then what would cause the engine's variable behaviour? Bruce In Philly (2000 S Boxster, now '09 C2S) - Friday, 23 March, 2012, at 9:48:34 pm |
Hard to say with any certainity but my suspicion would be on the AOS. We see occasional... MarcW - Friday, 30 March, 2012, at 3:31:31 pm |
Re: Smoke clouds Pedro (Odessa, FL) - Friday, 30 March, 2012, at 6:14:07 pm |
I strongly disagree. If the oil was coming past/through/around a piston... MarcW - Monday, 2 April, 2012, at 2:20:46 pm |
Quote
Pedro (Weston, FL)
Generally, when your car emits an occasional smoke bomb upon startup it is due to the particular position of one of the pistons when the engine was shut off.
In that particular position of the pistons a drop or two of engine oil can pass by the oil ring gap an into the combustion chamber.
Remember these are flat engines where there is liquid oil behind the pistons, not so in other types of engines.
That's why it's a big cloud and why it's sporadic, because the engine won't stop in that same particular position too often.
When you start getting periodic and regular smoke bombs upon startup it is generally the sign of a bad Air Oil Separator.
The AOS acts like a reverse osmosis water filter. It has a diaphragm that filters oil droplets from the crankcase gasses.
It then distills the oil drops back into the crankcase and the somewhat clean gasses that pass through the diaphragm go to the air inlet system, behind the throttle body, to be mixed with the incoming air and burned with the fuel.
The AOS cannot act in an intermittent way. When the diaphragm tears, it's going to pass oil into the engine. If you let it go it can hydrolock the engine.
Happy Boxstering,
Pedro
We'll just have to strongly agree to disagree *NM* Pedro (Odessa, FL) - Monday, 2 April, 2012, at 2:42:04 pm |
Marc, what if it's only one or more, but not all pistons/cylinders with excessive enough clearance? Laz - Monday, 2 April, 2012, at 2:55:47 pm |
Re: Sigh. I'm sorry but no way a bit more than a quart of 15w-50 oil is going to make any... mikefocke, '01S Sanford, NC - Saturday, 24 March, 2012, at 8:00:34 am |
An additive (or additive package) that's different, with a greater effect than viscosity difference? *NM* Laz - Saturday, 24 March, 2012, at 9:12:08 am |
Yea, I think I may have leak.... Bruce In Philly (2000 S Boxster, now '09 C2S) - Sunday, 25 March, 2012, at 8:03:08 pm |
Re: Update on my oil consumption issue paulwdenton - Monday, 26 March, 2012, at 8:19:40 am |
Re: Update on my oil consumption issue silverbox03 - Monday, 26 March, 2012, at 8:13:27 pm |